Generac Power Systems PM-DCP Owner's Manual
Surface Mount Models: Flush Mount Models:
004996-0 004997-0 Standard Annunciator
004998-0 004999-0 Annunciator w/Remote Relay Panel
PM-DCP 20-light
Remote Annunciator
Owner’s Manual
GEN.
RUN.
PRESSURE
GENERAC
LOW
OIL
BATTERY
CHARGER
FAILURE
PRE - ALARMS
HIGH
WATER
TEMP.
LOW
BATTERY
VOLTAGE
LOW
WATER
TEMP.
HIGH
BATTERY
VOLTAGE
LOW
FUEL
®
POWER SYSTEMS
1 AMP
RPM
SENSOR
LOSS
LOW
OIL
PRESSURE
RESET
ALARM
OVER
CRANK
HIGH
WATER TEMP
LOW WATER
LEVEL
RE-ARM
HORN
OVER
SPEED
EMERGENCY
STOP
GEN.
POWER
NOT
IN
AUTO
POWER MONITOR
TEST
ON
OFF
SYSTEM
READY
LINE
POWER
REMOTE START
COMMS.
OK
0A6733
ON
OFF
20-light Remote Annunciator
DETAILED SPECIFICATIONS
ENVIRONMENTAL SPECIFICATIONS
Temperature -20°C to +50°C
Humidity 0 to 95% Non Condensing
POWER SUPPLY REQUIREMENTS
Power Supply Source Generator Battery to comply
with NFPA
Nominal Supply +12 to +24VDC
Transient protection Spikes clamped to 40V
Power Usage 150mA maximum.
Battery Supply cable 2 wire - DC resistance less
than 7 Ohms per conductor.
Fuse on front panel 1 Amp
COMMUNICATION WITH GENERATOR CONTROL
SYSTEM
Communication link 2 wire RS485 fully isolated.
Communication cable 2 wire—twisted pair with
overall screen.
Cable size 24 AWG 0-250 feet. 18 AWG
0-1,200 feet.
Baud rate 4800, N, 8, 2.
NOTE:
1. The RS485 cable should not be run in the same
conduit, or in the same grouping as any high voltage or other “noisy” electrical conductors.
2. Avoid running the RS485 cable through any “high
noise” environments.
INTERFACE WITH OTHER EQUIPMENT
Alarm Relay Output 1 pair N/O Volt-free contacts-
100mA, 24V DC
AGENCY COMPLIANCE
NFPA-110 Yes
NFPA-99 Yes
TRANSPORTATION AND STORAGE
Temperature -20°C to +80°C
Humidity 0-95% Non Condensing
Detailed Specifications ..................................................2
Environmental Specifications ........................................2
Power Supply Requirements..........................................2
Communication With Generator Control System ..........2
Interface With Other Equipment ....................................2
Agency Compliance ......................................................2
Transportation and Storage ..........................................2
Packaging and Mounting................................................3
Annunciator Panel Mounting..........................................3
System Specification ......................................................3
Active/Passive Mode ......................................................3
Setting to Passive Mode ................................................4
Hardware Functional Description ..................................4
Generator Stop Signals..................................................4
Warning Indicators ........................................................4
Generator Power............................................................5
Line Power ....................................................................5
Battery Charger AC Failure............................................5
System Status Indicators ..............................................5
System Ready................................................................5
Communication OK........................................................6
Audible Annunciator ......................................................6
Test Switch ....................................................................6
Re-Arm Horn Switch ......................................................6
Reset Switch ..................................................................6
Relay Output ..................................................................6
Software Specification....................................................6
Serial Interface ..............................................................6
Request Frequency........................................................6
Operator Functions ........................................................6
Error Handling................................................................6
Hardware Watchdog ......................................................6
Troubleshooting ..............................................................7
Notes ................................................................................8
Electrical Data ................................................................9
Exploded Views & Parts Lists......................................12
2 Generac®Power Systems, Inc.
20-light Remote Annunciator
Generac®Power Systems, Inc. 3
PACKAGING AND MOUNTING
Enclosure type Sheet metal box.
Base panel Generac part #0A6985/0A7437
Front panel Generac part #0A6988/0A7443
Panel overlay Generac part #0A6733
Mounting Flush or Wall.
Weight requirements None
Manuals Yes - Operator guide
ANNUNCIATOR PANEL MOUNTING
NOTE:
For ALL models installation must always comply
with applicable codes, standards, laws and regulations. Adhere strictly to local, state and national
electrical and building codes. Comply with regulations the Occupational Safety and Health
Administration (OSHA) has established. Also, the
generator and related components must be installed
completely in conformance with the manufacturer’s
instructions and recommendations. Following proper
installation, do nothing that might alter a safe installation and render the unit in non-compliance with
such codes, standards, laws and regulations.
The Remote Annunciator panels (Models 004997-0 and
004999-0) are intended for flush mounting. Panel
mounting dimensions are shown in the illustration
below. The panel can be installed behind a cutout in an
existing sheet metal panel by using the four mounting
holes in its front panel. For wall mounting, use a square
outlet box behind the annunciator panel.
Flush Mounting Dimensions
The Remote Annunciator panels (Models 004996-0, and
004998-0) are mounted using any combination of the
mounting holes in the back panel of the box itself.
Surface Mount Dimensions
SYSTEM SPECIFICATION
The 20-light remote annunciator panel (RAP) directly
interacts with Generac’s control systems, and provides
remote monitoring and annunciation of 17 generator
parameters, two system-level warnings - System Ready
and Communications OK, and one spare channel.
Power to the RAP is supplied from the generator battery
(+12VDC to +24VDC) via a 2-wire link.
ACTIVE/PASSIVE MODE
The 20-light remote annunciator can be set to operate in
either ACTIVE or PASSIVE mode. In ACTIVE mode, it is
a modbus master and will request data from the DCP.
The DCP must be set as a slave port. In PASSIVE mode,
it is a modbus slave and must be connected to a master
port on the DCP; or, it can be hooked onto a masterslave link as a pure listening device. This method allows
for the connection of more than one annunciator.
An annunciator connected to an engine controller would
be a master.
Annunciator Connected to Engine Controller
PM-GC
(Slave)
Annunciator
(Master)
Slave
4 Generac®Power Systems, Inc.
An annunciator connected to a system controller would
be a slave.
Annunciator Connected to System Controller
DO NOT set the PM-GC to a modbus master port.
This connection will not work.
SETTING TO PASSIVE MODE
To set the 20-light annunciator to passive mode, simply
connect an 18 to 22 gauge wire between header positions J3-1 and J3-2.
NOTE:
1. It is not recommended to connect more than a
total of two 20-light remote annunciator panels.
(one set to active mode, one set to passive mode)
2. Up to four remote relay panels can be used with
the two 20-light remote annunciators.
HARDWARE FUNCTIONAL DESCRIPTION
The Remote Annunciator Panel communicates with the
control system and updates the light panel and audible
annunciator as described below.
GENERATOR STOP SIGNALS
These lights will flash when any alarm occurs and the
horn will sound as follows:
The ‘Re-Arm Horn' switch can be used to turn off and
re-arm the horn, or the alarms can be fully acknowledged using the ‘Reset' switch.
The ‘Reset' switch will turn off and re-arm the horn, and
any flashing lights will switch to the ON state until the
alarms are no longer present at the generator control
panel.
NOTE:
1. Alarm condition MUST be reset at the generator
set control panel.
2. When this annunciator is used in a Modular Power
System (MPS), an alarm on any one of the generators will cause the above lights to light, and alarm
to sound.
WARNING INDICATORS
These lights will flash when any alarm occurs and the
horn will sound according to the following table:
These alarms will be latched/not latched by the RAP
according to the above table. They can be acknowledged
at the RAP using the ‘Reset' switch—the active lamps
will then stop flashing and remain in the ON state until
the alarm signal clears from the generator control
panel. The ‘Reset' switch will also turn off and re-arm
the horn.
NOTE:
1. These lamps can only be fully reset when the
alarm state is no longer active and “Reset” has
been pressed at both the generator control panel
and the RAP.
Alternatively, at any time the horn can be turned
OFF and re-armed with the ‘Re-Arm Horn’ switch.
2. When this annunciator is used in a Modular Power
System (MPS), a warning on any one of the generators will cause the above lights to light, and
alarm to sound (if the warning is audible).
!
20-light Remote Annunciator
Annunciator Light Light Audible
Color Alarm
RPM Sensor Loss Red Yes
Overcrank Red Yes
Overspeed Red Yes
Low Oil Pressure Red Yes
High Water Temp/Low Water Level Red Yes
Emergency Stop Red Yes
Annunciator Light Light Audible Latched
Color Alarm
Pre-low OIl Pressure Yellow Yes Yes
Pre-high Water Temp Yellow Yes Yes
Pre-low Water Temp Yellow Yes Yes
Pre-low Fuel Yellow Yes Yes
Battery Charger AC Failure Yellow Yes No
Low Battery Voltage Yellow Yes No
High Battery Voltage Yellow No No
Generator Run Yellow No No
Generator Power Yellow No No
Not in Auto Red Yes No
PM-SC
(Master)
Annunciator
(Slave)
Slave
DANGER
Generac®Power Systems, Inc. 5
20-light Remote Annunciator
GENERATOR POWER
This light indicates different things depending on the
type of system it is attached to.
• For a PowerManager System Controller (PM-SC with
external transfer switch(es)), generator power is
defined as any one or more generators in the system
running and connected to the generator bus.
• For a PowerManager Integrated Controller (PM-IC
with integrated transfer switch), it represents the status of the generator’s side auxiliary contact of the
internal transfer switch. This shows whether the load
is powered by the generator.
• For a non-paralleling engine controller (PM-GC
WITHOUT internal transfer switch), it represents the
status of the input 4 (TB2-5) to the generator DCP.
This should be connected to the generator side auxiliary contact of the external transfer switch. A closure
to ground will cause the light to illuminate. This
shows whether the load is powered by the generator.
• For an engine controller that is part of an MPS system
(PM-PC), generator power represents the state of the
internal contactor that the generator is connected to.
• For a Utility paralleling engine controller (PM-GCF),
generator power represents the status of the generator side auxiliary contact of the internal transfer
switch. This shows whether the load is powered by
the generator.
LINE POWER
This light indicates different things depending on the
type of system it is attached to.
• For a PowerManager System Controller (PM-SC with
external transfer switch(es)), line power represents
the auxiliary input C (TB6-4).
• For a PowerManager Integrated Controller (PM-IC
with integrated transfer switch), it represents the status of the utility side auxiliary contact of the internal
transfer switch. This shows whether the load is powered by the utility.
• For a non-paralleling engine controller (PM-GC
WITHOUT internal transfer switch), it represents the
status of the input 3 (TB2-4) to the generator DCP.
This should be connected to the utility side auxiliary
contact of the external transfer switch. A closure to
ground will cause the light to turn ON. This shows
whether the load is power by the utility.
• For an engine controller that is part of an MPS system
(PM-PC), line power is not used.
• For a Utility paralleling engine controller (PM-GCF), it
represents the status of the utility side auxiliary contact of the internal transfer switch. This shows
whether the load is powered by the utility.
BATTERY CHARGER AC FAILURE
This light annunciates upon loss of 120 VAC power supply to the battery charger. This requires an AC relay
with normally closed contacts connected in the circuit
feeding power to the battery charger.
NOTE:
To prevent false alarms caused by brief power outages or load switching, a time delay AC relay
(approximately 30 second delay) is suggested.
SPARE
The spare indicator can be activated from the DCP by
using the programmable logic controller (PLC) feature.
SYSTEM STATUS INDICATORS
These lamps are for Status indication only—the normal
condition is ON.
SYSTEM READY
The System Ready is defined as ALL “in service” generators are ready to start, run, and supply power. Any
generators manually declared as “out of service” will not
affect this LED.
Upon a loss of System Ready, the annunciator will
respond as follows:
1. The System Ready LED will begin to flash.
2. The alarm will sound.
The “Re-arm Horn” switch can be used to turn off and
re-arm the horn, or the alarm can be fully acknowledged using the reset switch at which time the System
Ready LED will turn off and remain off until the System
Ready status is returned.
Annunciator Light Light Audible
Color Alarm
System Ready Green Yes
Communication OK Green Yes
Line Power Green No
Spare Green No
Loading...