Metasys LDM Series Manuel utilisateur
Fire Management Accessories Manual 445
Lamp Driver Modules Section
Technical Bulletin
Issue Date 0394
© 1994 Johnson Controls, Inc. 1
Order No. 445-161
LDM Lamp Driver Modules
Introduction Page 3
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Description *3
Design Considerations 5
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Limits *5
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Wire Runs *5
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Wiring Specifications 5
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Receive Only Annunciators 6
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Receive/Transmit Annunciators *6
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Lamp Driver Electrical Ratings *7
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Calculating the Power Supply Requirements *9
Installation 11
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Cable Sets for LDM-32 and LDM-E32 Outputs to Lamps or
LEDs*11
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Installing LDM Modules *11
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Wiring the Lamp Driver Module *14
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LDM Terminal Wiring *14
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Connecting the Supervisory Input*16
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Wiring Point LEDs and Relays *16
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Lamp Driver Power*18
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Connecting the Main Power Supply *20
Operating the Lamp Driver 21
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Lamp Test/Acknowledge 21
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Online LED 21
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Another Use for the Lamp Driver Module 22
* Indicates those sections where changes have occurred since the last printing.
2 Lamp Driver Modules—LDM Lamp Driver Modules
LDM-32 and the IFC-1010/2020 Page 23
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Capabilities 23
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Software Required *23
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Hardware Required*23
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Programming for Remote Annunciation*24
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Operating the LDM-32 with the IFC-1010/2020 25
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Configuring the Lamp Driver for the IFC-1010/2020 *25
LDM-32 and the FC-2000 31
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Capabilities *31
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Software Required *31
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Hardware Required*31
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Operating the LDM-32 with the FC-2000 *31
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Configuring the Lamp Driver for the FC-2000*32
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AIM-200 Point Annunciation*34
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LDM Switch Control Functions *36
* Indicates those sections where changes have occurred since the last printing.
Lamp Driver Modules—LDM Lamp Driver Modules 3
Introduction
Description
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This document describes how to install the LDM Series
Lamp Driver with an IFC-1010/2020 Intelligent Fire
Controller, IFC-200 Intelligent Fire Controller, or an
FC-2000 Fire Controller. The Lamp Driver Module (LDM)
provides the IFC-1010/2020, IFC-200, or FC-2000 with a
direct interface to a custom graphic display. The LDM-32
(Figure 1) features 32 points for annunciation (Alarm Only
Mode operation) or 16 points of annunciation and control
(Alarm/Trouble Mode operation). It can be expanded to 64
points (for each LDM-32 address) with the addition of
optional LDM-E32 Expander Modules (Figure 1). These
Lamp Drivers turn their outputs ON and OFF as commanded
by the control panel. With custom switches installed, the
LDM can be used to report selected switch activations to the
control panel for action. Each module may be configured to
provide 32 alarm indications or alternately, 16 alarm,
16 trouble, and 16 control switch points.
An optional LDM-R32 Relay Module (Figure 1) provides 32
dry normally open contacts for electrical isolation when
connecting the control panel to other equipment. One side of
each contact is connected to a common terminal. A separate
common is provided for each group of eight relays.
The LDM-32, LDM-E32, and LDM-R32 modules mount on
four standoffs inside of the custom graphic annunciator
cabinet. Alternately, the modules can be installed in a
standard CHS-4L low-profile chassis for mounting in a
CAB-x3 series cabinet.
Communication between the CPU and the LDMs is
accomplished over a two-wire serial interface employing an
RS-485 annunciator communication trunk. Power for the
LDM is provided via a separate power circuit from a
regulated power supply inherently supervised by the LDM
(loss of power results in an annunciator communication
failure at the control panel).
4 Lamp Driver Modules—LDM Lamp Driver Modules
Expander Ribbon Cable (75120)
Cable sets for connecting LDM-32 and LDM-E32 outputs to
lamps or LEDs are provided through the optional
LDM-CBL24 (24 inch long) and LDM-CBL48 (48 inch
long) assemblies. Each cable has a plug on one end for
connection to the annunciator module and stripped and tinned
ends on the other end of the assembly. Each cable supports
eight output lamps. The LDM-CBL24 and LDM-CBL48 are
cable sets that provide several cables, sufficient for most
applications.
Lamp Driver Modules—LDM Lamp Driver Modules 5
Note: The LDM-32 is functionally identical to the
ACM-16AT or ACM-32A Annunciator Control Modules.
The terms “lamp driver” and “annunciator” are used
interchangeably throughout this document. Although the
term “lamp” is used, the LDM is most often used to drive
Light-Emitting Diodes (LEDs).
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LDM-32 LDM-E32 LDM-R3
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Figure 1: LDM Lamp Driver Annunciator Modules
6 Lamp Driver Modules—LDM Lamp Driver Modules
Design Considerations
When considering the design of your LDM annunciator system, there
are two different types of configurations available: Receive Only
Annunciators or Receive/Transmit Annunciators.
Limits
Up to 32 annunciators may be installed on an RS-485 circuit.
The actual number of annunciator modules may be larger,
depending on the number of expander modules employed.
Note:The FC-2000 can address four annunciator/expander
combinations (address 1-4). All other annunciators installed in
the FC-2000 must be set to “Receive Only.”
Wire Runs
Communication between the Fire Alarm Control Panel and the
LDM is accomplished over a 2-wire RS-485 annunciator trunk.
This communication, to include the wiring, is supervised by the
Receive/Transmit LDM. Power is provided via a separate power
circuit from the control panel, which is supervised by the LDM.
Loss of power also results in a communication failure at the
control panel.
Fire Alarm Control Panel
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Lamp Driver
Power for LDM
(18 to 14 AWG)
Two-wire RS-485
Annunciator Trunk Circuit
(Maximum of 6000 feet)
ldmannun
Figure 2: LDM Annunciator Wire Runs
Wiring Specifications
●The RS-485 annunciator trunk circuit must be twisted shielded
pair cable and cannot be T-Tapped; it must be wired in a
continuous fashion from the control panel to each annunciator.
●The maximum RS-485 annunciator trunk wiring distance
between the panel and the last annunciator is 6000 feet when 16
AWG is used and 4000 feet when 18 AWG is used.
●The RS-485 annunciator trunk wiring must be an 18 AWG to
16 AWG twisted shielded pair.
●Limit the total wire resistance to 100 ohms on the RS-485
annunciator trunk circuit, and 10 ohms on the annunciator power
circuit.
Lamp Driver Modules—LDM Lamp Driver Modules 7
●Do not run cable adjacent to, or in the same conduit as, 120
VAC service, noisy electrical circuits that power mechanical
bells or horns, audio circuits above 25 volts (RMS), motor
control circuits, or SCR power circuits.
Receive Only Annunciators
For redundant annunciation of system points, annunciators can
be configured as Receive Only annunciators. Receive Only
annunciators must be set to the same address as the
“Receive/Transmit” annunciators they duplicate. Receive Only
annunciators are not fully supervisable. Receive Only
annunciators intercept information being transmitted to a
“Receive/Transmit” annunciator so that this information can be
duplicated at another display location. When configured for
Receive Only operation, they can not send annunciator status
information to the control panel or perform system functions
such as Acknowledge, Silence, or Reset. In addition, they can
not manually override addressable devices such as M510CJ
control modules or XPC-8 or XPR-8 control modules. Control
switches on Receive Only annunciators can be used for local
lamp test only. Wiring to Receive Only annunciators may be
supervised by installing a Receive/Transmit annunciator at the
end of the RS-485 annunciator trunk.
Receive/
Transmit Annunciators
Annunciators configured to serve as full-function annunciators
can receive device and/or zone status information as well as
transmit commands and annunciator status to the control panel.
They can also transmit or override commands to control modules
and control points using custom-wired point control switches.
This capability allows the annunciator to execute system
functions from a remote location in addition to displaying the
status of system points. You must place a Receive/Transmit
annunciator at the end of the RS-485 circuit to provide
supervision of the power supplied to the annunciator(s) and the
RS-485 circuit.
8 Lamp Driver Modules—LDM Lamp Driver Modules
"Receive Only" Annunciator
Set to Address "X"
Full Function "Receive/Transmit"
Annunciator Set to Address "X"
RS-485
Annunciator
Trunk
Circuit *
* RS-485 Annunciator
Trunk Circuit (6000 feet max)
is supervised and power-limited.
ldmannun
LDM-32 LDM-E32
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Fire Alarm Control Panel
LDM-32 LDM-E32
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Figure 3: Connecting Receive Only LDM Annunciator
Lamp Driver Electrical Ratings
The LDM module may use either 24 VDC (regulated) or internal
5 VDC for power connected LEDs. The 5-volt usage conserves
power, but limits the current available to drive the LEDs. Refer
to Figures 13 and 14 for connection illustrations.
Table 1: 5-Volt LED power Limitations
LED Current Maximum Number of Modules
Desired (mA) Number of LEDs LDM-32 LDM-E32
2 130 1 3
5661 1
10 34 1 0
20 17 1/2 0
Lamp Driver Modules—LDM Lamp Driver Modules 9
Notes:
1. The LDM-32 has 34 LED s and each LDM-E32 adds 32 more
LEDs. An LDM system configured for Alarm and Trouble
Mode and employing three expanders could have as many as 130
LEDs.
2. 5-volt power is not used with the LDM-R32 relay module
configurations. The LDM-R32 is compatible with 24 VDC
operation.
Maximum Current per Output: 100 mA (external circuit must
limit current)
Voltage Rating on Output Drivers: 20 VDC
Circuit (typical rating): 5 volts DC at 0.5 mA
Characteristics: Output Driver: Bipolar Darlington Open
Collector NPN Transistor
LDM-32 and LDM-E32 Ratings
Maximum Current per Output: 100 mA (external circuit
must limit current)
Voltage rating on Output Drivers: 30 VDC
Circuit (typical rating): 5 volts DC @ 0.5 mA
Output Driver: Bipolar Darlington Open Collector NPN
Transistor
LDM-R32 Ratings (LDM-R32)
Contact Rating (UL): 1 amp, 30 VDC (resistive)
Contact Material: Gold Clad Silver Alloy
Supervision of LDM Points
Any LEDs or lamps connected to the LDM-32 or LDM-E32
are not supervised for failure. In addition, the dry contacts of
the relays on the LDM-32 cannot be supervised. Therefore,
circuits connected to the relay contacts, as well as all LEDs
or lamps, must be located within 20 feet of the LDM series
modules. If the lamps are in a separate cabinet from the
LDM modules, the inter-cabinet wiring must be enclosed in
conduit or metal raceway.
10 Lamp Driver Modules—LDM Lamp Driver Modules
Calculating the Power Supply Requirements
The LDM series annunciators can draw their power from the
MPS-24A or PS5-BFS-24-UL power supply and must be
considered when calculating primary and secondary power
requirements.
Table 2: Standby Current Draw for LED Power at 24 VDC
Standby Current
[ ] No. of LDM-32 Modules X 40 mA =
The 40 mA can be reduced to 30 mA for modules with
Piezo Disable or Flash Inhibit modes selected.
[ ] No. of LDM-E32 Modules X 2 mA =
[ ] No. of LDM-R32 Modules X (see note) =
Standby Total at 24 VDC =
Note:Enter data here only if the LDM-R32 is connected to an
LDM-32 (not an LDM-E32 expander) AND the LDM-32 has not
been set for the 8-point shift (FC-2000). If both conditions have
been met, then add 18 mA for each LDM-R32 in Alarm and
Trouble Mode, or 9 mA in Alarm Only Mode.
Table 3: Alarm Current Draw for LED Power at 24 VDC
Alarm Current
[ ] No. of LDM-32 Modules X 56 mA =
[ ] No. of LDM-E32 Modules X 18 mA =
[ ] No. of LDM-R32 Modules X 288 =
[ ] No. of LEDs X [ ] mA per LED =
Alarm Total at 24 VDC =
Table 4: Standby Current Draw for LED Power at 5 VDC
Standby Current
[ ] No. of LDM-32 Modules X 40 mA =
[ ] No. of LDM-E32 Modules X 2 mA =
Standby Total at 5 VDC =
Table 5: Alarm Current Draw for LED Power at 5 VDC
Alarm Current
[ ] No. of LDM-32 Modules X 56 mA =
[ ] No. of LDM-E32 Modules X 18 mA =
[ ] No. of LEDs X [ ( ) mA/3 ] =
Alarm Total at 5 VDC =
Ce manuel convient aux modèles suivants
3
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