Cattron DYNAGEN RA400 User manual

RA400
Remote Annunciator
Installation and User Manual

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Installation and User Manual
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Revision History
VERSION
DATE
NOTES
2.0 10/2015
A 04/2023 Document rebranded and contact information updated.
Any information furnished by Cattron™ and its agents is believed to be accurate and reliable. All specifications are subject to change without notice.
Responsibility for the use and application of Cattron products rests with the end user since Cattron and its agents cannot be aware of all potential uses.
Cattron makes no warranties as to non-infringement nor as to the fitness, merchantability, or sustainability of any Cattron products for any specific
or general uses. Cattron Holdings, Inc., or any of its affiliates or agents shall not be liable for incidental or consequential damages of any kind. All
Cattron products are sold pursuant to the Terms and Conditions of Sale, a copy of which will be furnished upon request. When used as a tradename
herein,
Cattron means Cattron Holdings, Inc. or one or more subsidiaries of Cattron Holdings, Inc. Cattron™, corresponding logos, and other marks
are
trademarks or registered trademarks of Cattron Holdings, Inc. Other marks may be the property of third parties. Nothing herein provides a license under
any Cattron or any third party intellectual property right.

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Contents
1 RA400 Remote Annunciator...............................................................................................................................6
1.1 This Manual.............................................................................................................................................6
1.2 RA400 Product Identification Number.....................................................................................................6
2 RA400 Series Installation and Wiring.................................................................................................................7
2.1 Safety / Information .................................................................................................................................7
2.2 Mounting Location...................................................................................................................................8
2.2.1 RA400 Mounting Dimensions ....................................................................................................8
2.3 RA400 Terminals ....................................................................................................................................9
2.4 RA400 Installation Guide ......................................................................................................................12
2.4.1 Main RS485 Cable from Controller to RA400..........................................................................15
2.4.2 Controller Connections ............................................................................................................16
2.4.3 Mount the 8 x 8 x 4” Pull Box ...................................................................................................16
2.4.4 RA400 Connections .................................................................................................................17
2.4.5 Controller Front Panel Configuration .......................................................................................18
2.4.6 RA400 Configuration................................................................................................................18
3 RA400 Operation..............................................................................................................................................20
3.1 Power-Up ..............................................................................................................................................20
3.2 Reset and Low Power Behavior............................................................................................................20
3.3 Communication Status..........................................................................................................................20
3.4 Determining Controller Mode from the RA400......................................................................................20
3.5 RA400 LED Status Indicators ...............................................................................................................20
3.6 Alarm (Buzzer) and Alarm Silence........................................................................................................22
3.7 Digital Inputs 1 and 2 ............................................................................................................................23
4 Recommended Maintenance ...........................................................................................................................24
5 Technical Support.............................................................................................................................................25
Appendix A: Troubleshooting..................................................................................................................................26
Appendix B: Modbus Map.......................................................................................................................................28
Appendix C: Drawings / Specs ...............................................................................................................................31

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Please Read Manual Before Installing Unit
Receipt of Shipment and Warranty Return Information
Upon receipt of shipment, carefully remove the unit from the shipping container and thoroughly examine the unit
for shipping damage. In case of damage, immediately contact the carrier and request that an inspection report
be filed prior to contacting Cattron.
All returned items are to be shipped prepaid and include a Return Material Authorization (RMA) number issued
by Cattron. RMA forms are available by contacting Cattron Technical Support through the contact method listed
in the Technical Support section.
Limited Warranty
The RA400 Remote Annunciator carries a one year warranty. For more information refer to the standard terms
and conditions of sale at www.cattron.com.

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RA400 Specifications
Uses/Locations
Intended for indoor, stationary mounting only.
Please consult Cattron at www.cattron.com for outdoor or high vibration locations.
Controller Compatibility
TE600A, TG410, GSC400 (Obsolete)
GSC400 Firmware
Requirement
GSC400 firmware version 2.00 is required, and version 2.03 or later is recommended.
See installation instructions for more information.
VDC Rating
6 to 30 VDC
DC Power
Min*:1.3 W at 12 VDC (109 mA), 1.75 W at 30 VDC (59 mA)
Max: 3 W (250 mA at 12 V, 125 mA at 24 V)
Operating Temp Range
-40°F to +185°F (-40°C to +85°C)
Annunciators
Type
LED Indication
Green
(Normal)
Amber
(Warning)
Red
(Failure)
Overcrank
X
X
Overspeed
X
X
Emergency Stop
X
High Engine Temperature
X
X
Low Oil Pressure
X
X
Low Coolant Level
X
Low Coolant Temperature (Low Engine Temperature)
X
Low Fuel Level
X
X
Communication Status
X
X
Not In Auto
X
X
High Battery Volts
X
X
Low Battery Volts
X
X
Common Fault
X
X
Low Cranking Volts
X
Battery Charger Failure
X
User Configurable 1
X
X
User Configurable 2
X
X
System Ready
X
X
Generator Running
X
EPS Supplying Load
X
LEDs will gradually dim when temperature rises above 86°F (30°C) to protect them and
prolong their life.
Audible Alarm (Buzzer)
71 to 86 dB at 2 ft, typical. Depending on installation, this could be lower.
Front Panel Button
•Alarm Silence
•Lamp Test
Modbus
Communications
•2 wire (simplex)
•9600 and 19200 baud rates supported
•Built in terminating resistor (selectable by jumper on board)
•Isolated
•Max 2800 ft run with Belden 9841
RS232
•Firmware updates via RS232
User Inputs
Two digital inputs (16 V input maximum, reverse polarity protected)
Dimensions
W x H x D: 8 x 8 x 1.5 in (203.2 x 203.2 x 38.1 mm)
Weight
1.5 lb (0.68 kg)
* Three LEDs Indicators are on in standby: “Communication Status”, “Not In Auto”, and “System Ready”. The RA400
maintains communication. There is no sleep mode for the RA400.

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1 RA400 Remote Annunciator
The RA400 is a Modbus remote annunciator panel. It has 20 LED indicators to allow personnel to monitor the
controller from a remote location.
The RA400 can act as either a master or a slave. When set as a master, the RA400 can also copy the controller
information to up to three slave RA400 units. See the installation and configuration sections of this manual for
important safety information.
1.1 This Manual
This manual is divided into two sections:
•Hardware Installation / Configuration
•Operation
1.2 RA400 Product Identification Number
The RA400 series product numbering scheme (i.e., the serial number) provides various pieces of information
about the unit, including options selected by the customer. A serial number has the format shown in Figure 1.
Positions 1-5 Positions 7-8 Positions 10-14 Positions 19-22
Series Labelling Identifier Revision
RA400 LS = Standard
LX = No Label
Uniquely
identifies the
particular unit
Hardware
Revision
Number
Figure 1: RA400 Product Numbering Scheme
RA400 -_ _ -_ _ _ _ _ -Rev _._ _

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2 RA400 Series Installation and Wiring
2.1 Safety / Information
Generator systems contain high voltage circuitry. Failing to power down and lock out equipment can cause
damage to the equipment, or injury or death to personnel. The symbols below will be used in this document to
classify information.
NOTE
Indicates something of which you should take special note, but that is not a threat to safety.
Indicates a potential for injury or death.
This is similar to DANGER above, but it relates specifically to conditions where high voltage is
encountered.
Caution:
When the RA400 is set as a master, do not connector other Modbus devices to
addresses 2, 3, and 4 if harm can occur to personel via these devices.
The RA400 uses these addresses automatically for its copy feature.
Unexpected behaviour may occur.
NOTE
GSC400 firmware version should be at least 2.00 and above, with version 2.03 recommended.
To determine the firmware version, cycle power to the GSC400 and observed the screen.
The hardware and firmware versions will display for a few seconds before the GSC400 goes into the
OFF or AUTO mode.
For GSC400 firmware version 2.00, the default Modbus baud rate is set to 57600. This will have to be
changed to 9600 (RA400 default) or 19200, as these are the only two baud rates that the RA400
supports.
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2.2 Mounting Location
The RA400 Remote Annunciator must be properly mounted for safe operation. Caution must be taken at the
installation site to make sure the site is free from condensing humidity, extreme temperature fluctuations beyond
the range -40°F to 185°F (-40°C to 85°C), and corrosive materials.
The RA400 is intended for indoor, stationary mounting only.
Please consult Cattron at www.cattron.com for outdoor or high vibration mounting locations.
The annunciator is designed to fit in a common 8” x 8” x 4” breakout box. One such example is the Hoffman
ASE8X8X4 or ASG8X8X4. Refer to Figure 14 in Appendix C for a drawing and specifications on the Hoffman
8x8x4 Pull Box.
2.2.1 RA400 Mounting Dimensions
Figure 2gives the dimensions of the RA400 mounting holes in inches.
The dimensions of the PCB behind the front plate are 5.2” (W) x 6” (L). The depth of the RA400 is approximately
0.9” without any connectors plugged in, and 1.2” with the connectors plugged in.
Figure 2: Size and Placement of Mounting Holes (Not to Scale)

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2.3 RA400 Terminals
NOTE
The RA400 can be powered from a 12 VDC or 24 VDC source. It will not operate below 6 VDC and
voltages above 30 VDC may damage the unit.
All connectors on the RA400 use plug in screw terminals which are included with the RA400. The installer inserts
the wire(s) into the screw terminal, secures the wire using a flathead screwdriver, and plugs the screw terminal
into the terminal socket on the RA400. Figure 3shows the RA400 terminal sockets on the rear side of the unit.
Figure 3: RA400 Terminals As Seen From the Rear
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Table 1, Table 2and Table 3provide more detailed information.
NOTE
Table 1 lists the minimum wire size, maximum current capacity, name, and function of each circuit.
The wire gauges given in the table are the minimum recommended only.
Depending on the length of the cable run, you may require a larger gauge wire.
Table 1: RA400 Terminal Details
Power (J14)
Terminal Terminal # Wire Size (AWG) Function
+VDC11 18 Main power for the device
COM 2 18 Ground for the device
Earth 3 18 Chassis or electrical earth2
1Allowable voltage range is +6 VDC to +30 VDC.
2Connect this to the chassis of the generator or the ground of the electrical system (preferred).
Modbus (J9, J10)3
Terminal Terminal # Wire Size (AWG) Function
NC 1 N/A Do not connect
A (+) 2 24 The positive (A) for 2-wire Modbus
COM43 24 Modbus common (ground)
B (-) 4 24 The negative (B) for 2-wire Modbus
NC 5 N/A Do not connect
3There are two terminals provided to enable the installer to daisy chain multiple RA400 units together. If the
RA400 is the last device on the communications bus, the two pins of J13 (the Modbus terminating
resister jumper) must be shorted together (factory default).
4This must be connected to Modbus common.
User Input 1 and 2 (J4, J5)
Terminal Terminal # Wire Size (AWG) Max. Voltage (V) Function
Power 1 18 30 Digital input terminals
Ground 2 18 N/A*
Apply voltage across the two pins to activate the digital input. The digital inputs have specific functionality. Se
e
the Digital Inputs 1 and 2 section for additional information. Reverse polarity is protected to 30 V. Damage
will occur if the voltage exceeds this.
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Table 2: RA400 DIP Switch
Eight Position Dip Switch (SW2)
Switch Function
1 Controls whether the RA400 is a master or slave.
OFF = master
ON = slave
Default is OFF (master)
2 Controls the baud rate.
OFF = 9600
ON = 19200
Default is OFF (9600)
3 Switches 3 to 8 are the device ID of the controller connected to the RA400 (if switch 1 is OFF) or
the device ID of the RA400 (if switch 1 is ON).
The device ID can range from 1 to 63. Default is address 1. See Table 3to determine the
position of the switches for other addresses.
4
5
6
7
8
Note: All DIP switches in the OFF position places the RA400 in a factory test mode. To exit this mode, move
at least one switch to the ON position and cycle the power.
Table 3: Device ID DIP Switch Position
Device ID Switch 3
(x1)
Switch 4
(x2)
Switch 5
(x4)
Switch 6
(x8)
Switch 7
(x16)
Switch 8
(x32)
“OFF” is indicated by a series of dashes (---). “ON” is used to denote that the switch is in the “ON” position.
Software specified --- --- --- --- --- ---
1 ON --- --- --- --- ---
2 --- ON --- --- --- ---
3 ON ON --- --- --- ---
4 --- --- ON --- --- ---
5 ON --- ON --- --- ---
6 --- ON ON --- --- ---
7 ON ON ON --- --- ---
8 --- --- --- ON --- ---

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Device ID Switch 3
(x1)
Switch 4
(x2)
Switch 5
(x4)
Switch 6
(x8)
Switch 7
(x16)
Switch 8
(x32)
9 ON --- --- ON --- ---
10 --- ON --- ON --- ---
…and so on, until… To determine the position of the switches for device IDs between 10 and 28, turn on
the switches whose numbers (shown above in parentheses) add up to the device ID.
There is a unique combination for each device ID.
For example:
Device ID 11 = Switch 3, Switch 4, and Switch 6 “ON” = 1 + 2 + 8 = 11; all other
switches are “OFF”.
60 --- --- ON ON ON ON
61 ON --- ON ON ON ON
62 --- ON ON ON ON ON
63 ON ON ON ON ON ON
2.4 RA400 Installation Guide
NOTE
Important: Pretest the controller and RA400 by connecting them directly to each side of the Cattron
harness (G3/G4) and confirm proper communications.
This section will step you though the installation and setup of the RA400 to communicate with the Cattron
controllers (TG410 and GSC400). While reading the following sections, refer to Table 4for the required and
optional parts and tools.
Figure 4contains the wiring diagram for connecting a TG410 controller to the RA400 remote annunciator.
Figure 5contains the wiring diagram for connecting a GSC400 controller to the RA400 remote annunciator.
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Figure 4: TG410 to RA400

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Figure 5: GSC400 to RA400

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Table 4: RA400 Installation Part List
Ident Item Manufacturer
and Part #
Electrical Supplier
and Part #
Cattron
Stock
Code
Use
G2
Modbus two twisted pair
shielded cable, 18AWG
power, 20AWG Modbus
Belden
7895A N/A N/A
Modbus
A, B, and Gnd
connections between
controller and RA400
G3 GSC400 DWG1454 Cattron
DWG1454 N/A DWG1454
Premade 5 ft adapter
cable to plug into
GSC400 with pigtails
on the other end
G4 TG410 DWG1522 Cattron
DWG1522 N/A DWG1522
TG410 5 ft
communication
harness
H1 Power Plug in Terminal
(J14)
On Shore
Technology Inc
EDZ950/3
www.DigiKey.com
ED1718-ND N/A Replacement green
terminal plug (3 pos)
H2
User Input 1 & 2 Plug in
Terminal
(J4, J5)
On Shore
Technology Inc
EDZ950/2
www.DigiKey.com
ED1717-ND N/A Replacement green
terminal plug (2 pos)
H3
Modbus 1 & 2 Plug in
Terminal
(J9, J10)
On Shore
Technology Inc
EDZ950/5
www.DigiKey.com
ED1720-ND N/A Replacement green
terminal plug (5 pos)
IPull Box Type 1
8”x8”x4”
Hoffman
ASE8X8X4 or
ASG8X8X4
N/A ACC0109
Mounting box for
RA400
JAC Power Supply
(12V)1
Mean Well
LPL-18-12 N/A ACC0120
1Power supply is fully enclosed (IP64 rating) and rated from -22°F to 158°F (-30°C to 70°C) with derating after
122°F (50°C). See Figure 15 and Figure 16 in Appendix C for the Mean Well LPL-18-12 datasheet. Indoor use
only.
2.4.1 Main RS485 Cable from Controller to RA400
NOTE
Always run new wiring unless you can verify that it meets the following requirements. Using unknown
wiring can result in unreliable communications.
The communication cabling and its installation must meet these conditions:
1. A twisted pair cable with an impedance of 120 Ω(such as G2). Check with the cable manufacturer to
ensure you have the proper impedance cable.
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Note: The impedance rating of the cable is not the same as the resistance of its wires.
2. The wires for connections A and B need to be on the twisted pair.
3. A third wire is needed to connect the RS485 common between the controller and RA400. If using a
shielded cable, using the shield drain wire as the common is not recommended.
4. Each end of the bus must be terminated with 120 Ωresistors across A and B.
The following are recommendations:
1. A shielded cable is recommended if you are not sure if one is needed. Terminate the drain wire to
ground on one side only.
2. If you are powering the RA400 from the battery, it is recommended that you do not run power and
ground wires in the same cable/conduit as the Modbus communication wires, to prevent noise from
affecting communications.
2.4.2 Controller Connections
Ensure that the generator is disabled before doing any work on it or the controller.
Cattron sells an accessory harness that connects directly to the GSC400 (G3) or TG410 (G4). The harnesses
are 5 feet long. It is recommended that you cut the length so that it is no longer than 3 to 6 inches. Then connect
it to the main cable (see the previous section) using butt connectors or some other connection method. This
length provides the best immunity against noise.
GSC400 Notes
1. For long distances (> 100 ft), use a RS485 optical isolator. The GSC400 is not optically isolated.
2. If the GSC400 is not the last device on the Modbus network, cut the resistor from the harness.
3. If you are not powering the RA400 from the battery, wrap the extra power and ground wires on the
harness in electrical tape to prevent accidental shorting.
Modbus Common Note on Older GSC400 Units
Older GSC400 LXB / LSB units have an internal 100 Ωresistor between Modbus common and battery negative.
This may cause damage to the GSC400 Modbus transceiver in some applications. It is recommended that you
run a jumper from Modbus common to battery negative on the GSC400.
To determine if this resistor is in your unit, disconnect the Modbus cable from the GSC400 and measure the
resistance from Modbus ground (common) on the GSC400 Modbus terminal (pin 2) to the GSC400 battery
negative terminal. If it reads 100 Ω, then your unit has the resistor.
2.4.3 Mount the 8 x 8 x 4” Pull Box
The RA400 is designed to fit in an 8”x8”x4” screw cover pull box. The RA400 replaces the screw cover and the
four mounting holes on the RA400 align with the cover threads on the pull box.
The Modbus A, B, and common wires as well as the power and ground wires must be run into the panel. In
addition, the RA400 has an EARTH connection that must be connected to the ground of the electrical system.
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2.4.4 RA400 Connections
This section describes how to make the connections to the RA400. Refer to Table 1 (RA400 Terminal Details)
while reading this section.
Follow these steps:
1. Connect the Modbus A, B, and ground wires to one of the two five-pin screw terminals. It does not
matter which one you use, but all three wires have to be on the same connector.
2. If the RA400 is not the last device on the Modbus network, remove the jumper from J13.
3. Connect the RA400 EARTH wire (located on the three pin screw terminal, J14) to the ground of the
electrical system and the pull box (if used).
4. There are two options for powering the RA400: an AC-DC power supply or the genset battery.
AC-DC Power Supply
An AC-DC power supply can be used to power the RA400 from the building’s electrical system. The
RA400 requires at least 6 VDC, although it is recommended that you have 9 VDC or greater in case
of voltage drops or other unforeseen issues.
NOTE
A simple two prong AC wall adapter can be used to provide power. It must be able to
supply a minimum of 3 W (250 mA at 12 V, 125 mA at 24 V). Cattron also has a 12 VDC
power supply: Model # ACC0120 (indoor use only).
Note: If powered locally without a battery, the RA400 will lose power when the utility power is lost
until the generator is running and supplying power.
Generator Battery
Connect positive and negative wires from the generator battery. Refer to Table 5to determine the
proper gauge of wire to use for power and ground.
NOTE
If powering the controller and RA400 from the same battery for runs longer than 100 ft, use
an isolated DC-DC power supply to power the RA400 to prevent ground loops. Locate the
power supply close to the battery.
Table 5: Wire Size
Length, ft (m) Wire Gauge
0-450 (0-137) 22
450-700 (137-213) 20
700-1125 (213-343) 18
1125-1800 (343-549) 16
1800-2800 (549-853) 14
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2.4.5 Controller Front Panel Configuration
NOTE
GSC400 Firmware Note: The GSC400 must have firmware version 2.00 or higher. Version 2.03 or
higher is preferred. To determine the firmware version, cycle power to the GSC400 and observed the
screen. The hardware and firmware versions will display for a few seconds before the GSC400 goes
into the OFF or AUTO mode.
For firmware version 2.00, the default are address = 1 and baud rate = 57600.
For firmware version 2.03 or greater, the default is address = 1 and baud rate = 9600.
This section assumes the front panel menu is being used. The PC Interface can also be used to configure the
controller. Configure the unit using these steps:
1. Modbus baud rate – the RA400 can only support 9600 (default) and 19200. Set the baud rate in the
controller to match one of these.
2. Modbus Device ID – the RA400 can support slave addresses in the range of 1 (default) to 63 except
addresses 2 to 4 which are reserved for slave RA400 units. Set the address to the desired value in the
controller.
2.4.6 RA400 Configuration
NOTE
After making changes to the configuration switch located on the back of the RA400, you must
cycle the power to the RA400.
Power off the RA400, wait one second, and then power on the RA400.
The RA400 can operate as either a master or slave device. If the controller is the only other device on the
network, you need to configure the RA400 as a master. If you wish to have multiple RA400s on the same
network, configure one as a master and the others (up to three) as slaves. The three slaves must have a
Modbus address of 2, 3, or 4.
If you have another device other than the RA400 as a master, that device must request all required Modbus
registers from the controller and send them to the RA400 unit(s). See Appendix B: Modbus Map for the Modbus
registers.
Follow the instructions below to configure each RA400.
RA400 Master Mode
Ensure there are no devices using address 2, 3, or 4 except RA400 slaves. The RA400
master unit reserves these for slave RA400s. Placing other devices at these addresses can cause
unexpected results, possible damage to equipment, and/or harm to personnel.
With the RA400 in master mode, it will send requests to the controller. The RA400 will then turn on or off its
indicators and buzzer as required. It will also send the data to addresses 2, 3, and 4 for the RA400 slaves to
use.
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1. Set switch 1 of SW2 to the OFF position to set RA400 as master.
2. Set switch 2 of SW2 to either the OFF position for 9600 BPS or to the ON position for 19200 BPS.
This should match what was set in the controller front panel menu and those of the slaves.
3. On SW2, set DIP switches 3 to 8 to set the Modbus device ID (Modbus address) of the controller.
This should match what was set in the controller front panel menu.
RA400 Slave Mode
For the RA400 units in slave mode, follow these steps.
1. Set switch 1 of SW2 to the ON position to set RA400 as slave.
2. Set switch 2 of SW2 to either the OFF position for 9600 BPS or to the ON position for 19200 BPS.
3. On SW2, set DIP switches 3 to 8 to set the Modbus device ID (Modbus address) of the slave RA400.
Final Setup
1. Reset power to the RA400 by unplugging the three-pin screw-terminal connector, wait one to two
seconds and plug in the connector again. OR press the push button on the back of the RA400 (not the
button on the front).
2. The RA400 should go through a lamp test (red flash, then green flash) and sound the buzzer. If this does
not occur, then the unit may be defective. Contact Cattron at www.cattron.com for further information.
NOTE
3. The Communication Status indicator should be green. This indicates that the RA400 has
established or is trying to establish communications with the controller. Wait for 8 seconds
after power up to ensure communication is established.
If the Communication Status LED is flashing red, then the RA400 could not establish communications
with the controller. Try the following:
a) If you are using the Cattron supplied harness, connect the RA400 directly to the end of the
harness. If the RA400 works in this case, then it may be a wiring issue.
b) GSC400 only: Check the firmware version on the GSC400 (requires firmware version 2.00 or
later). The RA400 will communicate with GSC400 with firmware version 1.38 or later, but not all
lamp indications will work or work properly.
c) Ensure that the Modbus A and B connections are not reversed on the controller and RA400.
Ensure that the Modbus ground is connected.
d) Ensure the baud rate is the same on all slaves and master RA400 units and in the controller
front panel menu.
e) If the RA400 is a slave, ensure that the Modbus device address is set to an address of 2, 3, or 4.
f) If the RA400 is a master, ensure the controller device address (switches 3 to 8) on the master
RA400 is set correctly and that it matches that in the front panel of the controller.
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3 RA400 Operation
This section explains the operation of the RA400 from a day-to-day user perspective.
3.1 Power-Up
On power-up, the annunciator will emit a short beep from the buzzer, and then enter a lamp test. During the lamp
test, all red LEDs will be on for 2 seconds, and then all green LEDs will be on for 2 seconds. Note that the amber
color is produced by a combination of the green and red LEDs.
After the lamp test concludes, all of the front panel LED indicators will turn OFF. The Communication Status LED
indicator will then turn green, and the annunciator panel will attempt to establish communication. If the
communication is unsuccessful, after approximately 7-8 seconds the Communication Status indicator will flash
red, and the buzzer will sound.
3.2 Reset and Low Power Behavior
NOTE
If the voltage powering the RA400 drops below 6 V, the microcontroller on the RA400 will reset but
the LED drivers which control the LEDs may not. To the user, it would appear that the RA400 is
operational when it is in fact not.
Once the voltage rises to 6 V again, the RA400 will perform an LED test and sound the buzzer as it normally
does when power is applied.
3.3 Communication Status
In master mode, after 7.5 seconds of no communication with the controller, the RA400 will sound the alarm, turn
off all LED indicators, and turn the “Communication Status” LED indicator to flashing red.
3.4 Determining Controller Mode from the RA400
The controller has three main modes of operation: OFF, AUTO, and RUNNINNG. You can tell what mode the
controller is in using the Not In Auto and Generator Running Indicators on the RA400.
OFF Mode – The Not In Auto Indicator will be red and the alarm will sound unless it was silenced.
AUTO Mode – The Not In Auto indicator will be green and the Generator Running Indicator will be off.
Generator is in delay to start, preheating, cranking, and crank rest – The Generator Running Indicator
will be flashing green.
RUNNING Mode – The Generator Running Indicator will be green.
3.5 RA400 LED Status Indicators
NOTE
The RA400 Indicators will gradually dim when temperature rises above 86°F (30°C), in order to
protect the indicators and prolong their life. This will not be noticeable unless the ambient
temperate is very high.
The master RA400 continuously requests data from the controller and sends updates to the slave RA400 units in
addition to updating its own indicators. The RA400 units should respond within two to three seconds of a
change in controller status.
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