IES PR-6 Manuel utilisateur

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 1

Operator Manual

PR-6 rack mounted

dimmer pack

dmx

DMXINSTCHAS

PWR MANCONF

INFOCHKEXIT

ENT

L D:001*

CH 1 2 3 4 5 6 A:016*

Contents:

1 Introduction.........................................................2

1.1 Product range............................................2

1.2 Main features of PR-6...............................2

2 Unpacking and installation.................................2

2.1 Unpacking & checking..............................2

2.2 Positioning.................................................2

2.3 Connections ..............................................2

2.4 Safety......................................................... 2

3 Control panel layout...........................................3

4 Function overview..............................................4

4.1 Maximum and minimum levels................. 4

4.2 Response speed.......................................4

4.3 Non-dim operation ....................................4

4.4 Local control..............................................4

4.5 Dimmer curves..........................................4

4.6 Status reporting.........................................4

4.7 Backup settings.........................................4

5. Information displays and manual control.........4

5.1 To check dimmer performance ................4

5.2 To check software versions......................4

5.3 To manually control a dimmer level.........5

5.4 To operate the chaser...............................5

6 Programming......................................................5

6.1 Flow diagram.............................................5

6.2 General Programming Advice..................5

6.3 Front Panel Controls.................................6

6.4 General controls .......................................6

6.5 DMX programming....................................6

6.6 Serial address...........................................7

6.7 Maximum & Minimum levels.....................8

6.8 Response time.......................................... 8

6.9 Dimmer curves..........................................9

6.10 Non-Dim operation.................................. 9

6.11 Start Mode...............................................9

6.12 Passwords ............................................10

6.13 Sleep mode...........................................11

6.14 Fault reporting.......................................11

6.15 Return to factory settings......................11

7. DimSTAT.........................................................12

8. Fault finding.....................................................12

8.1 Reported faults........................................12

8.2 First line maintenance.............................12

9. Specifications..................................................13

10. Declaration of conformity..............................14

11. Flow chart......................................................15

12. Index..............................................................16

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 2

1 Introduction

1.1 Product range

This handbook describes the operation and

programming for the IES PR-6 6 x 2.5kW rack

mounting dimmer pack. The dimmers covered by

this handbook are:

9908 PR-6, 2 x 2.5kW, 24A three

phase input, 6 x CEE17 16A, 6 x

dual Schuko outputs or 6 x dual

French outputs

9913 PR-6, 2 x 2.5kW, star/delta

RCBO input, 6 x CEE17 16A, 6 x

dual Schuko outputs or 6 x dual

French outputs

1.2 Main features of the PR-6

The PR-6 is a fully digital triac dimmer pack with

MCB overcurrent protection per circuit, a three

phase 4-pole 30mA RCD or a star/delta input with

RCBO and a choice of socket outlets included in the

design. The programming facility is one of the most

sophisticated available, and the control panel

includes a backlit menu-driven LCD screen to set

and review operational parameters, performance

and status information. The PR-6 shares many of

the advanced features of the ‘itec’ range of IGBT

dimmers from IES, including DimSTAT, the bi-

directional network used for status and circuit fault

analysis, remote programming and software

updates.

2 Unpacking and installation

2.1 Unpacking & checking

The PR-6 dimmer pack is a self-contained dimming

system and only requires a suitable mains input

connector.

The PR-6 dimmer pack is packed to withstand

normal transportation, but before operating the unit,

check there is no sign of transit damage which could

affect the operation and safety of the dimmer.

2.2 Positioning

The PR-6 dimmer pack is an extremely versatile

dimmer, and can be incorporated in a 19” equipment

rack, or used as a portable dimmer. It is designed for

forced ventilation cooling and care must be taken to

ensure adequate ventilation especially when the PR-

6 is built into a cabinet. The PR-6 is supplied with

mountings suitable for 19” equipment enclosures,

and accommodates 3U of panel space.

2.3 Connections

Note: All electrical connections to the PR-6

dimmer pack must be made by a suitably-

qualified person.

2.3.1 Power input connections

Input power is supplied via a 3-phase, neutral and

earth 4mm2flexible cable or a 4-wire delta supply

cable. For ease of installation and removal, a

suitable plug and socket, such as a 32A three phase

CEE17, is recommended.

2.3.2 Power output connections

The PR-6 has a choice of one CEE17 16A, or twin

Schuko or twin French sockets per channel.

Connections to the loads are simply made by fitting

the appropriate plug to the load cable.

2.3.3 DMX data signal connections

The dimmers are controlled using DMX 512. This is

connected by a two-pair and shield high-speed data

cable with XLR 5-pin connectors (male = input;

female = output).

Pin connections are:

10V shield

2DMX +

3DMX -

4DimSTAT –(optional)

5DimSTAT + (optional)

The DMX network supports up to 32 PR-6 dimmer

packs (192 dimmers in total) connected to each

DMX line. For larger installations where more DMX

lines are required, the use of a DMX booster/isolator

is recommended. Any booster/isolator used has to

accommodate bi-directional data on pins 4 and 5 for

DimSTAT to operate. Suitable boosters are IES

code 9601 (5 channels) or 9815 (10 channels).

Termination is required for both DMX and DimSTAT

data on all networks. The last DMX output socket in

the line has to be terminated with two 120 1/4 Watt

resistors connected between pins 2 and 3 (DMX)

and between 4 and 5 (DimSTAT). A ‘dummy plug’

XLR male connector with the termination resistors

fitted is recommended for this purpose.

Note: If DimSTAT communications network is

not required, the DMX cable specification

may be reduced to a single pair.

2.4 Safety

Even though the PR-6 dimmer pack is equipped with

MCBs per channel and a RCD or RCBO input

protection device, all normal electrical safety

procedures must be applied. Do not use the dimmer

if the mains input cable has been damaged, or the

body of the case is not intact.

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 3

3 Control panel layout

dmx

DMX

INST

CHAS

PWR MANCONF

INFO

CHKEXIT

ENT

L D:001*

CH 1 2 3 4 5 6 A:016*

ON LED

Illuminates red when power is applied, and the

mains RCD is switched on.

DMX LED

Illuminates red continuously when valid DMX is

present. LED flashes when there is no DMX signal.

ENT & cursor arrows

ENT (ENTer) completes a programming step and

records the information in the memory

The four cursor arrows provide navigation through

the set-up menu, and the means to enter data.

éUp cursor. Higher level menu feature

or move cursor up in display screen or

number increment.

êDown cursor. Lower level menu

feature or move cursor down in display

screen or number decrement

çLeft cursor. Move cursor left in display

screen

èRight cursor. Move cursor right in

display screen

DMX

Selects DMX address per channel when the single

mode is selected, or the first address of the group of

six when the joined mode is selected.

INST

INSTall function. To set-up dimmer functionality

during installation with options as follows:

•DimSTAT communication address

•DMX failure options

•DMX backup levels

•DMX configuration (individual or combined)

•Channel configuration (individual or combined)

•Sleep mode

•Minimum level reset (preheat off when DMX is

not present)

•Factory reset

•Channel information

•Password set-up

•Dimmer hardware configuration

CHAS (with LED)

CHASe. Provides set-up for the dimmer’s internal

chase system for stand-alone display effects. The

LED illuminates when the dimmer is in the ‘chase

mode.

CONF

CONFigure. Access to a sub-menu to set the

detailed configuration for individual or combined

dimmer channels. Options available are:

MAX MAXimum. Sets the

maximum output level from

30% to 100%, individually or

combined.

MIN MINimum. Sets the minimum

output level from 0% to

29.9%, individually or

combined.

T-IN Response time to fade in from

0.00 secs to 99.9 secs.

T-OUT Response time to fade out

from 0.00 secs to 99.9 secs.

CURVE Dimmer law selection

I/O Non-dim On/off operation

PRIORITY Not available.

PHASE Not available.

MODE Start mode (normal, soft start,

burst, proportional)

MAN

MANual. Provides manual control of each channel

for circuit testing and pre-setting.

EXIT

Returns to the opening screen menu option without

recording changes.

INFO

INFOrmation. Provides a display of the nominal

supply voltage and installed software version.

CHK (with LED)

ChecK. Displays a log of any circuit or dimmer

faults. LED illuminates if an error occurs.

PWR

Not available on this range.

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 4

4 Function overview

4.1 Maximum and minimum levels

The maximum output of the dimmer may be

adjusted to improve lamp life or to limit the power

used. A minimum level (preheat) may be necessary

with some filaments to improve the speed of fast

flashes or chases. A 'Minimum level reset' option

exists (INST>General settings menu) to switch off

the preheat when the DMX signal is not present (i.e.

when the control desk is switched off).

4.2 Response speed

The time taken for a dimmer to ‘fade’ to the applied

control signal level is used to control the rate of

change of current to the filament improve lamp life

for higher wattage filaments.

4.3 Non-dim operation

Each dimmer may be selected to operate as a

dimmer, or as a non-dim switch.

4.4 Local control

PR-6 dimmer packs have a range of integrated

control facilities for basic operation without a control

desk. These include live manual control of each

dimmer level, preset recorded levels for fixed display

lighting, and an integral chaser with 20 pre-set

chase patterns and variable speed and level.

4.5 Dimmer curves

A selection of dimmer curve transfer functions (the

relationship between from control signal level and

dimmer output) are available to compensate for the

different visual responses of a live audience or a TV

camera, and to provide improved dimming for non-

resistive loads such as fluorescent tubes.

4.6 Status reporting

All IES dimmers incorporate a bi-directional

communications system called DimSTAT which

provides feedback of the dimmer status and fault

reporting to a PC. DimSTAT also enables a remote

PC to control any dimmer in the network, and to

update the dimmer’s internal operating software and

preset options. DimSTAT network software and a

remote PC are optional extras

4.7 Backup settings

Should the DMX signal fail, the PR-6 dimmer pack

can be programmed to hold the present level, fade

to zero or fade to a pre-programmed backup level.

5. Information displays and

manual control

The following group of buttons provides direct

access to detailed set-up and status information and

manual override controls, and do not require

passwords for access.

5.1 To check dimmer performance

1. Press INST.

2. Press éor êto choose CHANNEL INFO

menu. Press ENT.

3. The screen shows:

INFO CH:[1]

CURRENT 04,7A

4. Press çor èto select other information

as follows:

CURRENT: current in Amps measured at the

output

VOLTAGE: voltage at the input of the dimmer

TEMPERATURE: internal temperature

DMX: DMX level received

ACTUAL: the level the dimmer is responding

to (may differ from DMX value due to MIN,

MAX or MAN influence).

STATUS: error message(s) with details.

5. Press éor êto select another dimmer

channel (shown in square brackets), or,

6. Press EXIT to leave the screen.

5.2 To check dimmer software versions

1. Press INFO, and the screen shows:

P1:0105 P2: ____

P3:____ SYS:X.43

Where: P1, P2 and P3 are the dimmer

processor software versions and SYS is

the front panel processor software.

2. After 3 seconds, the screen automatically

resets to show the normal output details.

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 5

5.3 To manually control a dimmer level

It is possible to control any dimmer directly from the

front panel using the cursor controls to set the

desired level. This can be used for testing circuits,

overriding control signals or setting an independent

fixed level. The level is mixed with any other

incoming signal on a highest level takes precedence

basis.

1. Press MAN, and its associated red LED

lights.

2. The screen shows:

L: ;;33;

CH:T123456

3. Use çor èto select a channel number

(active channel number is underlined), or

‘T’ which controls all channels together.

4. Press éor êto adjust the level. The

dimmer output is live while the level is

being adjusted.

5. Press ENT to leave the menu and record

the changes or EXIT to leave the previous

settings unchanged.

5.4 To operate the chaser

The PR-6 dimmer pack has a sequence chaser to

provide basic effects without a control desk. This is

primarily used for exhibition and display lighting

purposes. See section 6.? For programming the

chaser.

1. Press CHAS.

2. The screen displays shows:

CH ST SP L FADE

01 00 1,0 3OFF

where:

CH is chase number

ST is step number

SP is speed (in seconds) from one step to

another

L is a bargraph showing the master intensity

FADE selects either a fading chase (ON) and

a switching chase (OFF)

3. Press çor èto move the underline

beneath the CH number, and use éand

êto select the chase number required.

4. Move the underline to SP to adjust the

chase rate, underline L to set a new

master intensity level, and choose to a

fade [ON] or switching effect [OFF] by

underlining FADE.

5. Press ENT to start the chase, and the

screen shows e.g.:

CH 3_3_3_AUTO

05 01 1,0 3OFF

6. The step number will increment as the

chase progresses, restarting at 1 at the

end of each cycle.

7. With the chase number underlined, press

éor êto switch to another chase pattern.

6 Programming

6.1 Flow diagram

An overview of the flow chart showing the menu

structure and options is shown in section 11.

6.2 General Programming Advice

6.2.1 Passwords

For clarity, the following sections which describe

programming activities do not refer to the entry of

passwords. Passwords are included to prevent

unauthorised access to the DMX, CONFigure and

INSTall menu trees. The passwords are 4-digit

numbers with a factory default of 0000 (no password

necessary). It is possible to have the same

password for all, or separate passwords for each

menu tree. If any of the protected menus is selected,

the subsequent screen requests a password. This is

achieved by pressing the relevant çand ècursor

buttons to select the digit, and the éand êcursor

buttons to enter the number.

6.2.2 Navigation through the menus

The cursor buttons are used to move around the

menu screens, and to activate a set-up option or

parameter prior to adjustment. When a parameter or

option is activated, it is shown in square brackets,

e.g. [240] and it is this item which you are changing

on the screen. When you press ENT to confirm the

change, the screen will show:

DATA IS STORED

IN MEMORY

As this happens for each menu option, it is not

included in each following instruction.

6.2.3 Channel characteristics

All dimmer-specific functional parameters may be

set on a dimmer-per-dimmer basis. Thus each

dimmer may have a different response time, curve,

maximum level etc. if required. Alternatively, all

dimmers in one PR-6 dimmer pack can be

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 6

programmed together, depending on whether the

dimmer set-up has been set to ‘SINGLE or ‘JOINED’

(see paragraph 6.4.1). If the configuration is set to

single, a number is shown in each relevant channel

reference [4], and if all dimmers are programmed

together, a T is shown in square brackets [T]. Note

that if T is activated, an underscore bar is added,

making it appear as an ‘I’.

6.3 Front Panel Controls

All of the performance and control characteristics,

measurements and status reports, are available

from the front panel controls and LCD screen. When

power is applied and the RCD is switched on, the

power LED will illuminate. The DMX LED will

illuminate if a valid DMX signal is present.

During the power-up reset process, the LCD display

shows identification details and the software version

before displaying the output screen:

L: 3;33;_D:001?

CH:123456 A:032v

This display shows the channel levels (bargraphs at

the top left), the DMX address of the first channel in

the PR-6 dimmer pack (D:xxx) and the DimSTAT

address of the unit (A:xxx). The number of

bargraphs shown relates to the number of dimmers

in the PR-6 dimmer pack –either 2, 4 or 6.

Note: A questionmark (?) adjacent to the DMX

address shows the DMX signal is not

valid, and the ‘v’ adjacent to the DimSTAT

address number indicates communication

is active.

6.4 General controls

PR-6 dimmer packs have the capacity to store

performance characteristics individually for each

dimmer or combined for all dimmers in the group.

This feature is independent of the choice of DMX

numbering scheme, thus the dimmers may have

individual characteristics, but with consecutive DMX

addresses.

6.4.1 To change the dimmer characteristic set-up

scheme:

1. Press INST.

2. Press êor éto choose GENERAL

SETTINGS menu.

Press ENT.

3. Press êor éto choose CONFIG

CHANNEL menu.

Press ENT.

4. The screen shows:

GENERAL

CH_CONF. [SINGLE]

5. Use éor êto select either SINGLE (for

different individual channel parameters) or

JOINED (if all dimmers have the same

characteristics).

6. Press ENT (to record the changes) or

EXIT (to leave the previous settings

unchanged, and return to the home page).

6.5 DMX programming

Each dimmer in the PR-6 dimmer pack is assigned a

DMX channel number. A feature is provided to set

sequential number groups (‘joined’ addressing)

instead of individual settings (‘single’ addressing).

When programming a dimmer, IT IS IMPORTANT

TO SET THE DMX ADDRESSING SCHEME

BEFORE the individual characteristics are set, as a

later change can reset previously recorded individual

channel characteristic settings.

6.5.1 To set up DMX addressing scheme:

1. Press INST.

2. Press êor éto choose GENERAL

SETTINGS menu.

Press ENT.

3. Press êor éto choose DMX ADDRESS

menu.

Press ENT.

4. The screen shows:

GENERAL

DMX MODE [SINGLE]

5. Use éor êto select either SINGLE (for

different individual DMX addresses) or

JOINED (if the dimmers are numbered

sequentially from the start address).

6. Press ENT (to record the changes) or

EXIT (to leave the previous settings

unchanged, and return to the home page).

6.5.2 To set-up DMX addresses:

1. First set the DMX scheme as described

above (either individual or start address).

2. Press DMX, and the screen displays:

DMX: [001] 002

CHAN.: 1 2

3. If SINGLE has been selected, two

channels are displayed at a time, with their

relevant DMX address. Use éand êto

select the address needed for the first

dimmer channel and move to other

channels by pressing çand èand

continue adjusting each DMX address by

pressing éand êas before.

4. If JOINED has been selected, only one

DMX number line is entered which is the

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 7

address for dimmer 1. The remaining

dimmers are automatically addressed in

sequential order. Press ENT to store the

settings and to return to the previous

menu.

Note: DMX address 000 deselects the channel

from operation. Valid DMX numbers are

between 001 -512. If higher dimmer

numbers are used by the control desk, the

number has to be rationalised to a base of

512 for the dimmer address (e.g. channel

600 is (600 -512) = DMX address 8.

6.5.3 To set up a DMX backup condition

The PR-6 dimmer pack is equipped with a choice of

responses to the failure of the DMX signal. The

dimmers can be set to hold their last DMX level,

fade to zero over 5 seconds, or fade to a preset

memory setting. This choice is available per dimmer.

1. Press INST.

2. Press êor éto choose GENERAL

SETTINGS menu. Press ENT.

3. Press êor éto choose DMX FAIL menu.

Press ENT.

4. The screen shows:

GENERAL

DMX FAIL [HOLD]

5. Use çor èto select one of the 3 options

available:

RESET: sets all dimmers to zero after 5

seconds

HOLD: maintains the last valid DMX

levels until DMX is restored

BACKUP: selects dimmer levels set-up

through the PRESETS memory

facility

6. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

Note: If BACKUP has been set, do not forget to

pre-set the relevant DMX backup state.

6.5.4 To set-up DMX Backup preset:

1. Press INST.

2. Press êor éto choose DMX BACKUP

menu. Press ENT.

3. The screen shows:

L: ;;33;242 V

CH:T123456 000 A

4. Use çor èto select a channel number

(active channel number is underlined) or T

if all channels are to be set together.

5. Press éor êto adjust the backup level.

The dimmer output is live while the backup

levels are adjusted.

6. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.5.5 To set-up a DMX Minimum reset

In order to increase the flashing speed of higher

wattage lamps, it is sometimes necessary to use a

low preheat level. DMX minimum reset is the

automatic means to switch any preheat levels off

when DMX is not present (i.e. when the control desk

is switched off, but the dimmers remain on).

1. Press INST.

2. Press êor éto choose GENERAL

SETTINGS menu.

Press ENT.

3. Press êor éto choose MIN RESET

menu. Press ENT.

4. The screen shows:

GENERAL

MIN RESET: [OFF]

5. Use éor êto select either AUTO

(preheat switches off when DMX is off) or

OFF (preheat runs continuously).

6. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.6 Serial address

The DimSTAT PC address which shown on the

output screen as A:XXX is the unique number which

is used by network to identify each dimmer unit for

the purpose of reporting status information and for

transferring data between the dimmer unit and PC. If

a dimmer unit is removed from the network and

replaced by another, DimSTAT will automatically

prompt for an update of configuration information

when the PC number is entered. DimSTAT identifies

the new unit on the network, and prompts the

operator to download the previous characteristics file

from the PC to the new dimmer. The PC number is

associated with a unique factory serial number

which is permanently stored in the dimmer. An

Autoreload function is also provided to reinstate the

PC address after a factory reset.

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 8

6.6.1 To set-up a serial address:

1. Press INST.

2. Press êor éto choose DIMSTAT

ADDRESS menu. Press ENT.

3. The screen shows:

ADDRESS: [001]

AUTO-RELOAD NO

4. Press éor êto set the address number

between 001 and 255.

5. Press èto select auto-reload options of

YES or NO.

6. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.7 Maximum & Minimum levels

It is possible to affect the output range of a dimmer

by setting a minimum level and (or) a maximum

level. A minimum level is used to provide a pre-heat

to preheat lamp filaments, whereas the maximum

level is used to limit power and extend lamp life.

Minimum levels may be set between 0% to 29.9%,

and maximum levels from 30% to 100%. Factory

default levels are 0% for minimum and 100% for

maximum. One common use for a reduced

maximum level is to control 110V lamps but the

110V dimmer curve is recommended as it produces

a smoother control over the whole range of intensity.

However this should be checked in comparison with

other lamps in the rig to ensure uniformity of

response.

Note: In the case of high-inrush loads (e.g.

Parcans) where flashing on from a cold

state is required, a preheat level of 5% is

recommended. See also section 6.5.5 on

DMX Minimum Reset.

6.7.1 To set-up max. and min levels:

1. Press CONF.

The screen shows the individual channel

number (or T if the dimmer set-up scheme

copies characteristics to all dimmers in the

rack) and gives access to all configuration

options.

CONFIG: CH:[1]

MAX: 100%

2. Press éor êto select the required

dimmer number.

3. Press èto select the maximum or

minimum option, and to highlight the

recorded value (in square brackets):

CONFIG: CH:1

MIN: [00,0%]

Setting options are :

MIN: minimum level from 00% to 29.9%.

MAX: maximum level from 30% to 100%.

4. Press éor êto select the level (shown in

square brackets).

5. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.8 Response time

Each dimmer has two times associated with it which

control the minimum time to fade in and out, and are

called T-IN and T-OUT. These times are referred to

as ‘response times’ and are used to protect the lamp

filaments from thermal damage, and for reducing

surges in the system. The default times are currently

zero seconds (for the fastest response). Values

recommended are 0.01s for a 1kW load or 0.1s for a

2kW load.

6.8.1 To set-up response times:

1. Press CONF.

The screen shows the individual channel

number (or T if the dimmer set-up scheme

copies characteristics to all dimmers in the

rack) and gives access to all configuration

options.

2. Press éand êto select the dimmer

number.

CONFIG: CH:[1]

MAX: 100%

3. Press èto select the response times T-IN

or T-OUT, and to select the recorded

value (in square brackets):

CONFIG: CH:[1]

T_OUT: [00,00]SEC

4. Adjust the time by pressing éand ê.

5. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 9

6.9 Dimmer curves

Dimmer curves (dimmer laws) are used to adjust the

relationship between control level and light output.

This enables the dimmer to be fine-tuned to

accommodate the preferences of a live audience or

a television camera. There are 8 factory standard

dimmer laws, and a provision for further custom

selectable curves in later software releases. The

factory default law (0) is Linear Law (or preset to the

BBC’s requirements). The list of dimmer curves is as

follows:

LINEAR linear relationship (standard)

LINEAR5 LIN5 (as linear but with a small

offset at 50%)

INV.LIN inverted (when control = zero,

dimmer = full etc.)

110V LIN 110V lamp load, linear law

S-LAW S-Law

BBC BBC specification (modified

square law for TV applications)

FLU-50 Fluorescent (minimum 50%)

FLU-30 Fluorescent (minimum 30%)

FLASH flash effect (light switches on and

off as the control fades up and

down)

NON DIM Non-Dim operation (see note

below)

9-14 for future use

Note: There are two options for setting Non-Dim

(switch) operation –via the CURVE menu

and the NON-DIM menu, both found in

CONF. For Non-Dim operation, either or

both options may be set, but for normal

dimmer operation BOTH must be set to

‘NO’.

6.9.1 To select a dimmer curve:

1. Press CONF.

2. The screen shows the individual channel

number (or T if the dimmer set-up scheme

copies characteristics to all dimmers in the

rack) and gives access to all configuration

options.

3. Press éor êto select the channel

number.

CONFIG: CH:[1]

CURVE: LINEAR

4. Press èto select the CURVE option

(shown in square brackets) and set the

curve option by pressing éand ê.

5. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.10 Non-Dim operation

PR-6 dimmer packs may be set to switch on and off

rather than dim, and in this way are used for many

other functions such as switching power to working

lights, non-dim and auxiliary circuits. There are two

methods of selecting non-dim operation –as

described here, and also as one of the ‘Dimmer

Curves’ as described in the previous section.

6.10.1 To select a dimmer to operate as a non-

dim switch:

1. Press CONF.

2. The screen shows the individual channel

number (or T if the dimmer set-up scheme

copies characteristics to all dimmers in the

rack) and gives access to all configuration

options.

3. Press éor êto select the channel, and

then press èto select the NON-DIM

option shown as follows:

CONFIG: CH:1

I/O: [NO]

4. Press éor êto select I/O operation

(either YES for Non-Dim or NO for normal

dimming operation).

5. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

Note: A special feature is included to prevent

damaging accidental ‘flashing’ to discharge

loads. If T-IN is set to, say, 10 secs. and T-

OUT to 99secs, then the on period is fixed for

10 seconds, and 99 seconds has to elapse

before switching on is possible again.

6.11 Start Mode

PR-6 dimmer packs are equipped with a software

feature to alter the criteria for dimming cold

filaments. The response of a dimmer depends on

the resistance of the filament, which varies

according to temperature. A cold filament has a

slower response than a warm filament. If the

complete rig is subject to a sudden loss and

resumption of power (a ‘brown-out’) it is possible for

the combined cold switch-on load to be higher than

the diversified power supply can withstand, resulting

in nuisance tripping of circuit breakers. For this

reason, the dimmers are installed with a range of

IES PR-6 dimmer pack Operators’ Manual v. 1.1 25-04-2002 10

start modes to give the users flexibility in the set-up

characteristics of the dimmer.

An additional feature is Blink mode which flashes the

dimmer channel with a controllable mark-space and

flash rate for warning signs in the studio or

backstage. The options are:

BASIC: Normal mode

SOFT START: If the circuit has not been used

for 5 minutes, the initial response

time is automatically set to

500mS

BURST:If the circuit has not been used

for 5 minutes, the dimmer burst-

fires 20 cycles at full power to

heat the filament rapidly and to

improve response.

PROP: Proportional burst start mode.

The number of full power cycles

is in relation to the speed of rise

of DMX signal between 0% and

9%.

BLINK:Flashes the output on and off for

warning signs. T-IN sets the fade

in time, T-OUT sets the fade out

time, and the DMX level sets the

period of flash.

6.11.1 To set start mode

1. Press CONF.

2. The screen shows the individual channel

number (or T if the dimmer set-up scheme

copies characteristics to all dimmers in the

rack) and gives access to all configuration

options.

3. Press éor êto select the relevant

channel number and then repeatedly

press èto select the START option

shown as follows:

CONFIG: CH:2

MODE: [BASIC]

4. Press éor êto select the start mode

required.

Note: If BLINK has been set, be sure to adjust the

T-IN and T-OUT times to create the

required flash characteristic, and adjust

the DMX value when used for the period

of flash.

5. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.12 Passwords

Passwords are used at 3 levels of the PR-6 dimmer

pack dimmer set-up procedure: DMX, CONF. and

INST. One password or 3 separate passwords may

be used to give a range of access options.

Passwords are in the form of 4 digit codes and may

be set and used from the front panel of the dimmer

and DimSTAT, but passwords may only be read

using DimSTAT. Passwords set at 0000 give

unlimited access.

Note: If the password is set to 0000 (factory

default) the menus are open, and no

prompts to enter a password are seen on

the display.

6.12.1 To set-up passwords for the first time, and

to alter a previous password:

Note: Programming passwords for DMX

programming, Channel configuration and

Installation follows the same procedure

which is described here for DMX only.

1. Press INST.

2. Press êor éto choose PASSWORD

DMX menu. Press ENT.

3. The screen shows:

NEW PASSWORD

[*]:*:*:*

4. Press çor èto select a digit to enter

(shown in square brackets).

5. Press êor éto adjust the digit.

Note: Make a copy of passwords set in the back

of this handbook, as the passwords can

be interrogated only via a DimSTAT link to

a remote PC. Resetting the password to

0000 disables the previous setting.

6. Press ENT to leave the menu and record

the changes or EXIT (to leave the

previous settings unchanged).

6.13 Sleep mode

The SLEEP function has been included to switch off

the backlit LCD screen during a performance when

the control panels are in view of an audience or

camera. When enabled, the sleep function switches

off the backlight a short time after the last touch of a

panel button, and switches back on when a front

panel button is pressed.

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