Wilcoxon IT401 Manuel utilisateur

Wilcoxon Sensing Technologies

8435 Progress Drive, Frederick, MD 21701, USA

Amphenol (Maryland), Inc d/b/a Wilcoxon Sensing Technologies

Tel: +1 (301) 330-8811

Tel: +1 800 WILCOXON

Fax: +1 (301) 330-8873

www.wilcoxon.com

97017 Rev B.1 10/18

Model iT401

Intelligent Transmitter Series Alarm

Operating guide

97017 Rev B.1 10/18 Page 2 of 23

Safety section

The iT401 alarm can be safely operated when the instructions in this manual are carefully followed.

This section summarizes the safety considerations. Reminders, in the form described below, will appear

in the detailed instructions to assure operator awareness of these safety considerations. Qualified

personnel should operate and maintain this module only after becoming thoroughly familiar with this

manual.

WARNING: This symbol is used in the instruction manual where operator safety must be

considered. The instruction manual should be consulted and read carefully.

CAUTION: This symbol is used when caution is needed to prevent damage to equipment.

It is used where careful attention to certain procedures described in the instruction manual

is needed. This symbol is also used to emphasize procedures other than normal operating

procedures.

Safety summary

1. Make sure that the iT401 is properly grounded to a good earth ground.

2. Do not expose this equipment to rain or moisture.

3. Lethal AC voltage may be present at some of the iT401 connectors due to relay connection circuits.

4. Use common sense and avoid haste!

CE certification

The iT401 Intelligent Transmitter Series Alarm received CE certification in 2009. All models with a serial

number of 02550 or higher are CE certified. Models with a serial number of 02549 or below were

manufactured before the product received CE certification.

97017 Rev B.1 10/18 Page 3 of 23

Contents

Safety section 2

Safety summary 2

1.0 Theory of operation 4

2.0 Product description 4

2.1 Front panel 5

2.2 Right side label 5

2.3 Left side label 6

3.0 Installation 6

3.1 Jumper selection for 4-20 mA input / output 6

3.2 Mounting and removal 7

3.3 Wiring 7

3.3.1 Power 7

3.3.2 Alarm relays 8

3.3.3 External reset 8

3.3.4 Using the external 4-20 mA input 8

4.0 Operation 9

4.1 Mode/reset switch 9

4.2 Setpoint switches 9

4.3 Entering the programming mode 10

4.4 Saving programmed settings 10

4.5 Alarm setting information 10

4.6 Alarm module input over-range 11

5.0 Maintenance and troubleshooting 12

Table 1 - Error codes and explanations 12

5.1 Displaying serial number and manufacturing date 13

6.0 Technical assistance 13

6.1 Technical assistance 13

6.2 Customer service 13

Appendix A –Programming codes 14

Appendix B –Programming worksheet guide 18

Appendix C –Additional display and programming notes 19

97017 Rev B.1 10/18 Page 4 of 23

1.0 Theory of operation

The iT401 Alarm accepts data from any Wilcoxon

Sensing Technologies Intelligent Transmitters

(iT100/200, iT30X Series) as well as any standard 4-

20mA current loop sensor. It monitors the loop current

data and activates up to three form C relays according

to user-defined trip levels.

The iT401 allows users to set three independent

alarm functions and levels for the monitored signals.

Each alarm relay can be independently programmed:

to alarm for signals increasing above a setpoint (high alarm)

to alarm for signals decreasing below a setpoint (low alarm)

to alarm when the bias output voltage (BOV) is outside the span setpoints

to delay alarming from 0 to 99 seconds to prevent false alarms

with hysteresis levels at which the alarm shuts off

The alarm levels are set as a percentage of full scale from 1 to 99%. Setting hysteresis to a level of zero

(0) turns the alarm relay into a latching relay. When operating as a BOV alarm, the BOV is set as a

voltage and the “span” of the alarm window is adjusted in voltage rather than percent of full scale.

2.0 Product description

The iT401 module is a 22mm wide DIN-rail mountable unit. The power required is a nominal +24 VDC

which must be supplied through the rear panel TBUS connector.

The iT401 Alarm is designed to operate with the Intelligent Transmitter Series of signal conditioning

modules (models iT100 and iT200) and also accepts inputs from the iT30X series.

The iT401 Alarm can also be used as a general-purpose 4-20mA loop sensor alarm module. A signal

from any 4-20mA analog sensor can be input to the front terminal block

and then monitored with the built-in LED display. See section 3.1 for

information about how to make this selection. If the iT401 is operated in

this “stand-alone” configuration, power to operate the iT401 is supplied

through the iT032 TBUS connector on the rear of the module. A TBUS

cable connection terminal (IT033, IT034, or IT035)

is also required. The

power for the iT401 is connected through these terminals. These

connections allow DC power leads to be screwed into the appropriate

power slots. See section 3.3.1 for complete details.

IT033: 5-position cable-connector for TBUS direct-connection, male receptacle, cable comes in left side horizontal

IT034: 5-position cable-connector for TBUS direct connection, female plug, cable comes in right side horizontal

IT035: 5-position cable-connector for TBUS direct connection, female plug, cable comes in right side vertically

IT401 IT032

IT033

Figure 2 - Alarm module and

TBUS connectors

Figure 1 - Alarms, hysteresis levels and delay actions

“OFF STATE”

97017 Rev B.1 10/18 Page 5 of 23

2.1 Front panel

All operating controls for the iT401 are on the front panel of the module. Three

embedded membrane switches are used to check the status and make programming

changes.

The upper front panel switch is behind the diamond-shaped “MODE/RESET” switch.

This switch is used to access the programming mode or reset the latched relays.

Below this pushbutton are three light emitting diode (LED) display lights. Each multi-

colored light signifies the state of one of the alarms.

a) A red indicator means the signal has increased above defined alarm levels.

b) A yellow indicator means the signal has decreased below a defined alarm level.

c) An orange indicator means the signal is outside the BOV band limits.

The center of the front panel has a large two-digit LED read-out with two decimal point

indicators. During the programming mode, both decimal points are used. In normal

operation, while displaying the signal level in percentage of full-scale, neither decimal point will be

illuminated. When the display is set to output the equivalent loop input current, the right decimal point

will be illuminated.

Occupying the bottom third of the panel are the last two embedded membrane switches. These two

triangle shaped switches, separated by the word “SETPOINT,” are used to toggle selections during the

programming mode and for changing set points while programming. During normal operation these can

be used to display the unit serial number and programming date (see section 5.1).

2.2 Right side label

The label on the right side identifies the connections of the iT401 module. Sixteen terminal connections

are available on four plug-in termination connectors.

Three of the connectors are for the 8-Amp, form C relay contact

connections. The relay terminal wiring diagram shows the identification of

the relay connections. Each of the relay connections are indicated by the

number assigned for that relay, a “1”, “2”, or “3” shown on the label. The

two connectors on the top of the iT401 are for relay “1” and “2”

connections. Relay “3” is the connector just below the front panel.

The fourth (lowest) connector is used for relay reset and external 4-20mA

loop wiring connection. It can also serve as a 4-20mA output loop signal

repeater for the iT Series vibration transmitter.

Figure 4 - Right side label

Figure 3 –Front panel

97017 Rev B.1 10/18 Page 6 of 23

2.3 Left side label

The left side label illustrates the TBUS interconnection wiring when the iT401 is

used with any of the iT100/200 Series vibration transmitters.

The TBUS is used to input the 24 VDC power required by the iT401 module. If

the iT401 is being used in a “stand-alone mode” without an iT100/200 Series

vibration transmitter, the user will have to supply the 24 VDC power to the

TBUS connection. See section 3.3.1 of this manual for wiring details.

3.0 Installation

3.1 Jumper selection for 4-20mA input / output

The iT401 has an internal jumper that selects whether the 4-20mA loop wiring

connection of the iT401 is defined as an “input” or an “output”. The iT401 is

shipped with the jumper inside the accessory bag and must be installed

before using the iT401.

When using the iT Alarm with the iT100/200 Intelligent Transmitter, the jumper must

be in the “OUT” position so that the 4-20mA termination connections generate an

additional 4-20mA output signal repeating the 4-20mA loop output from the

iT100/200 transmitter.

When using the iT Alarm with any 4-20mA loop sensor (independent from an

iT100/200 Series vibration transmitter) the jumper must be set in the “IN” position

(the 4-20mA loop wiring is an “input”). The iT401 does not supply loop power, so

the loop power (normally 24 VDC) must be supplied from another source.

The software must be changed to reflect the jumper setting (see section 4.3 of this manual).

To change the jumper from “IN” to “OUT,” open the case of the iT401 by using a small screwdriver to

pop the plastic latches. Figure 6 shows a user releasing the latch. There is a latch on the top and

bottom of the unit. Slide the face and attached circuit board out to access the jumper. Figure 7 shows

the position of the jumper on the circuit board, identified as J10.

After the jumper has been firmly seated in the desired position, close

the iT401 by sliding the circuit board back into the slots of the case

and pushing the face panel until it snaps into place.

Note:Ensure the circuit board aligns with the TBUS connection slot

in the back of the case when re-inserting the board.

Courtney put this

here on purpose

Figure 6 –Releasing the

latch of the iT401 case

Figure 7 - Jumper for 4-20mA IN/OUT

Figure 5 –Left side label

97017 Rev B.1 10/18 Page 7 of 23

3.2 Mounting and removal

The iT401 alarm module mounts to a standard 35mm DIN “T” rail. Each

module uses 22.5mm of DIN rail length. A spring-loaded clip on the rear

of the module secures the iT401 to the DIN rail.

Mount the module by placing the upper "hook" of the mount onto the DIN

rail, aligning the back of the module with the TBUS connector. Gently

rock it into place until the latch catches on the lower rail.

Removing the module requires a small, flat-bladed screwdriver with a blade less than ¼ inch (6mm) in

width. Insert the blade into the slot that extends below the bottom rear of the module (see figure 8).

Gently pry the latch down while lifting the module to release it from the DIN rail and TBUS connector.

Note: Disconnect the terminal connections from the module before removing the module from the DIN

rail. All plug wiring should be well marked to assure proper reconnection when the module is re-

installed.

3.3 Wiring

3.3.1 Power

The iT401 can only be powered directly from the TBUS connector at the

rear of the module.

The label on the left side of the iT401 module (see figure 5) illustrates the

TBUS wiring. When the iT401 is used with iT100/200 Series vibration

transmitter modules, a mating connector provides power to the iT401

module. Powering the iT401 from the iT100/200 Series requires two

TBUS connectors: one connector is for the iT100/200 Series unit TBUS

(IT031, sold separately) and the other for the iT401 module TBUS (IT032,

shipped with the iT401).

When the iT401 is used with the iT30X series transmitters or as a stand-

alone alarm, the module is powered using a side-entry TBUS power

connection terminal connector (IT033, IT034, or IT035). The iT033

screws are positioned for easy tightening and will fit over the male plugs

of the iT032 to form a small, compact unit.

A 24-Volt DC, nominal, supply voltage should be used to power the iT401

module. The power supply positive (+) output connects to the “+24V”

terminal. The power supply common (-) output connects to the “Common”

terminal (see figure 9).

Figure 9 - TBUS connectors

Figure 8 - Installation / removal

97017 Rev B.1 10/18 Page 8 of 23

A good earth ground should connect to the “Common” terminal of the 4-20mA loop input connector on

the front of the module. If unsure of a good earth ground, check with a certified electrician to properly

identify this connection to ensure the proper safety and operation of the alarm.

3.3.2 Alarm relays

The iT401 has three form C relays (pictured at the right). The “COM” is the center pole

of the switch, the “N.C.” is the normally closed contact, and the “N.O.” is the normally

open contact. The contacts are rated for 8 Amperes with a resistive load or 1/3

horsepower for inductive loads. Each relay is independently field programmable using

the internal software (see Appendix A). The contacts of these relays have 2-kiloVolt

isolation from the circuit of the iT401.

3.3.3 External reset

The iT401 module provides for an external reset function. This function is implemented by

applying a contact closure to the one terminals labeled “Reset” and one terminal labeled “COM”

(see figure 4). The module does not require any programming to implement this capability.

3.3.4 Using the external 4-20mA input

The iT401 may be driven by an external 4-20mA signal, such as Wilcoxon’s 4-20mA loop

powered sensors. The user must supply 24-Volt power (see figure 9). This input has a 257-Ohm

resistor as the load for the 4-20mA circuit.

To implement the external 4-20mA signal input, select option “4.2.” during the programming of the

“Signal Input” selection and change the input jumper position as outlined in section 3.1.

Each 4-20mA loop powered sensor is wired to an

iT401 module as shown in figure 10.

The “loop power” connection of the sensor connects

directly to the DC power source. The “loop return”

connection is connected to the “4-20mA” input of the

iT401. The cable shield connects to the “COM”

terminal. To avoid potential ground loop problems, the

shield should remain isolated at the sensor

connection. Wilcoxon cables that are R6W, R6SLI,

R6QAI, or R6QI will achieve the shield isolation at the

sensor end.

WARNING: Do NOT use the “Common” of any of the alarm relay connections for

the ground. The relay “Common” terminal is center pole of the two-position

switch. It is not connected to any circuit common connection.

Sensor

COM

Courtney put this here

Figure 10 –Wiring illustration of the iT401 connected to a 4-

20mA loop powered sensor

97017 Rev B.1 10/18 Page 9 of 23

4.0 Operation

Upon powering, the iT401 will begin initialization. The display LED segments and alarm LEDs will

illuminate in sequence until all segments and decimal points have cycled three times. This sequence

takes approximately 60 seconds, which allows the circuit to initialize and stabilize before the alarms

become active. The module will then be in the normal operating mode and display the signal level on

the front panel two-digit LED. When the iT401 is operating with an iT100/200 Series module, the iT401

will wait for the iT100/200 Series module to complete its initialization sequence before the alarm relays

become active. If the user makes no changes to the operating mode settings during this time the module

is ready for use. The display will count down from 99 to 0 during this time.

This section describes how to enter the programming mode of operation and how to set any of the

programmable items. All settings are entered using the three front-panel membrane switches. The

module will revert from the programming mode to the normal display mode if no switches are pressed

for more than 10 seconds.

NOTE: If any switch is depressed and held for more than 60 seconds, an error will be generated. This

insures any front panel switch that fails in the ‘closed’ state will be detected.

4.1 MODE / RESET switch

Near the top of the front panel is a switch marked with a diamond-shaped figure. It is labeled “MODE

RESET”. This switch has multiple purposes.

Depressing and releasing the MODE/RESET switch for two seconds will place the iT401 module into the

programming mode.

Once in the programming mode, each time the MODE/RESET switch is pressed and released the iT401

will index to the next program mode setting. If the user holds the MODE/RESET switch, the display will

indicate the next program mode to be modified.

Holding the MODE/RESET switch depressed for more than four seconds (while not in programming

mode) clears all latched relays regardless of the signal level. The relays will re-latch after the time delay

period if the signal continues to exceed the alarm setpoint.

Refer to the program mode table in Appendix A of this guide for the program modes and item setting

options.

4.2 SETPOINT switches

On the lower part of the front panel are two “SETPOINT” switches. These switches are used to scroll

through the selections of each programming mode setting. When in the normal operating mode, these

switches can be used to display the serial number and programming date (see section 5.1).

NOTE: The scrolling operation does not implement “roll-over” or “roll-under” while selecting items. The

list stops when the selections reach the end of a set of options. Use the opposing switch to go the other

direction through a list.

97017 Rev B.1 10/18 Page 10 of 23

4.3 Entering the programming mode

To put the iT401 in programming mode, depress and hold the MODE/RESET switch

until “P.P.” displays on the front panel, and then release. The display will then indicate

“S.i.” for one second to indicate that the module is in the “signal input,” or programming,

mode. Immediately after this, the display will indicate whether the jumper is set to

“input” or “output.”

The display will indicate “t.b.” for the TBUS or “4.2” for the 4-20 mA loop powered

sensor setup. To change this setting, use the “SETPOINT” switches to toggle between

the two choices. The user must make sure the jumper is in the corresponding

position (see section 3.1).

Press the MODE/RESET switch again to select the item indicated by the display and step to the next

programming mode selection of the module. Refer to Appendix A for the sequence of the “MODE”

selection and a complete listing of each mode’s selections. It is helpful to make a copy of the Appendix

B “Programming worksheet guide” to make notations of settings used in the programming mode. Retain

the completed Appendix B to document the programmed settings of the module.

If no front panel switches are pressed for 10 seconds in the programming mode, the module will revert

to its normal display mode. If the module reverts to the normal display mode while the user is in the

process of programming changes, those changes are not lost unless power is removed. Press the

MODE/RESET switch and release it while the “P.P.” is displayed to get back to the programming mode.

Step through the programming mode selections until you have returned to where you left off. Continue

making programming changes until you reach the last programming option. The last programming entry

option is the “Save programming” selection. Section 4.4 outlines the method to save the edited program

choices.

4.4 Saving programmed settings

The user can save changes to the settings in memory at the completion of the

programming session. The last selection during programming is the “Save

programming” selection, indicated on the display by “S.A.”as shown to the right.

Releasing the MODE/RESET switch will display the item option choice, which defaults

to “no.”The “no” option means that no changes will be permanently saved. The “Go”

option means that all changes will be saved. Toggle through the choices by using the

SETPOINT switches. When ready to accept either “no” or “Go,” press the

MODE/RESET switch. The display will then indicate the “??” as a last chance to change

the storage choice. Press the MODE/RESET switch again to store the settings

programmed. Press either SETPOINT switch to toggle between the “no” and “Go”options.

4.5 Alarm setting information

Each level alarm can be defined as either increasing high, decreasing low, or Bias Output Voltage

(BOV) alarm types. An individual signal level alarm cannot be defined as both high and low, except for

monitoring the bias output voltage. Each alarm relay can also be defined as “OFF”, meaning it is not

active for any alarm.

Save:

t.b.:

4.2.:

P.P.:

S.I.:

No:

Go:

??:

Ce manuel convient aux modèles suivants

Table des matières

Manuels Unité de contrôle populaires d'autres marques

Festo

Festo Compact Performance CP-FB6-E Manuel de la liste des pièces

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Manuel utilisateur

JS Automation

JS Automation MPC3034A Manuel utilisateur

JAUDT

JAUDT SW GII 6406 Series Guide rapide

Spektrum

Spektrum Air Module System Manuel utilisateur

BOC Edwards

BOC Edwards Q Series Manuel utilisateur

KHADAS

KHADAS BT Magic Manuel utilisateur

Etherma

Etherma eNEXHO-IL Manuel utilisateur

PMFoundations

PMFoundations Attenuverter Manuel utilisateur

GEA

GEA VARIVENT Manuel utilisateur

Walther Systemtechnik

Walther Systemtechnik VMS-05 Manuel utilisateur

Altronix

Altronix LINQ8PD Instructions de montage

Eaton

Eaton Powerware Series Manuel utilisateur

WAGO

WAGO 750-407/040-000 Manuel utilisateur

Sony

Sony CCU-590 Manuel utilisateur

Graco

Graco 25D614 Manuel utilisateur

Task Force Tips

Task Force Tips YE-RF-900 Manuel de programmation

Shini

Shini SPV-U Series Manuel utilisateur

Wilcoxon iT401 Manuel utilisateur

Manuels Unité de contrôle populaires d'autres marques