DynaGen RA400 User manual

Installation and User Manual –Revision 2.0
Full Version File: MAN-0081R2.0, RA400 User Manual.doc, October 2015
Thank You For Purchasing This DynaGen Product
RA400
DynaGen Remote Annunciator
For use with the GSC400 and TG410.

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User Manual for the RA400 Remote Annunciator
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 DynaGen.
All returned items are to be shipped prepaid and include a Return Material
Authorization (RMA) number issued by DynaGen. RMA forms are available by
contacting DynaGen Technical Support through the contact methods listed
below.
Limited Warranty
The RA400 Remote Annunciator carries a one year warranty. For more
information refer to the standard terms and conditions of sale at
http://www.dynagen.ca.
Support
For up to date manuals and other support see http://www.dynagen.ca/support.
We welcome your comments and suggestions. Please contact us at:
DynaGen Technologies Inc.
Phone: [phone]
[phone]
Fax: [phone]
Email: [email protected]
WEB SITE: www.dynagen.ca

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User Manual for the RA400 Remote Annunciator
RA400 Specifications
Uses/Locations
Intended for indoor, stationary mounting only. Please consult factory for
outdoor or high vibration locations.
GSC400 Firmware
Requirement
GSC400 firmware version 2.00 is required and version 2.03 or latter is
recommended. See installation instructions for more information.
VDC Rating
6 to 30 VDC
DC Power
Min*:1.3 Watts at 12VDC (109mA), 1.75 Watts at 30VDC (59mA)
Max: 3 Watts (250mA at 12V, 125mA at 24V)
Operating Temp
-40°C to +85°C (-40°F to +185°F)
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 300C to protect the
LEDs and prolong their life.
Audible Alarm
(buzzer)
71 to 86dB at 2ft Typ. 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 2800ft run with Beldin 9841
RS232
Firmware updates via RS232
User Inputs
Two digital inputs (16V input maximum, reverse polarity protected)
Dimensions
W x H x D: 203.2 x 203.2 x 38.1 mm (8 x 8 x 1.5 in.)
Weight
0.68 Kg (1.5 Lb)
* 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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User Manual for the RA400 Remote Annunciator
Table of Contents
1. RA400 Remote Annunciator................................................................................ 5
1.1 This Manual........................................................................................................ 5
1.2 RA400 Product Number Identification............................................................ 5
2. RA400 Series Installation and Wiring ................................................................ 6
2.1 Safety / Information........................................................................................... 6
2.2 GSC400 Firmware Version.............................................................................. 7
2.3 Mounting Location............................................................................................. 7
2.3.1 RA400 Mounting Dimensions................................................................... 7
2.4 RA400 Terminals............................................................................................... 9
2.5 RA400 Installation Guide................................................................................ 15
2.5.1 Main RS485 Cable from Controller to RA400...................................... 15
2.5.2 Controller Connections............................................................................ 16
2.5.3 Mount the 8 x 8 x 4” Pull Box ................................................................. 17
2.5.4 RA400 Connections................................................................................. 17
2.5.5 GSC400/TG410 Front Panel Configuration......................................... 18
2.5.6 RA400 Configuration ............................................................................... 19
3. RA400 Operation................................................................................................. 21
3.1 Power-up........................................................................................................... 21
3.2 Reset and Low Power Behavior.................................................................... 21
3.3 Communication Status.................................................................................... 21
3.4 Determining Controller Mode from the RA400............................................ 21
3.5 RA400 LED Status Indicators........................................................................ 22
3.6 Alarm (Buzzer) and Alarm Silence................................................................ 24
3.7 Digital Inputs 1 and 2...................................................................................... 25
4. Recommended Maintenance ............................................................................ 26
5. Upgrading RA400 Firmware.............................................................................. 27
Appendix A Troubleshooting.................................................................................... 32
Appendix B Modbus Map.......................................................................................... 35
Appendix C Drawings / Specs.................................................................................. 38

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User Manual for the RA400 Remote Annunciator
1.RA400 Remote Annunciator
The RA400 is a remote annunciator panel for the GSC400 and TG410
controllers. It has 20 LED indicators to allow personnel to monitor the controller
from a remote location.
The RA400 can either act as 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/configuration section of this manual for important
1.1 This Manual
This manual is divided into two sections:
1. Hardware installation / Configuration
2. Operation
1.2 RA400 Product Number Identification
The RA400 series product numbering scheme (i.e. serial number) provides
various information (including options selection by the customer) about the unit.
A serial number has the format given in Figure 1.
RA400 - _ _ - _ _ _ _ _ - Rev _._ _
Hardware
Revision
Number
Uniquely
indentifies the
particular unit.
LS=Standard
LX=no label
Series: RA-
400
RevisionIdentifier
LabelingSeries
Position 19-22Position 10-14Position 7-8Position 1-5
Hardware
Revision
Number
Uniquely
indentifies the
particular unit.
LS=Standard
LX=no label
Series: RA-
400
RevisionIdentifier
LabelingSeries
Position 19-22Position 10-14Position 7-8Position 1-5
Figure 1 –RA400 product numbering scheme

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User Manual for the RA400 Remote Annunciator
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.
Indicates something that you should take special note of
but that is not a threat to safety.
Indicates a potential for injury or death.
This is similar to Danger above but relates specifically to
conditions where high voltage is encountered.
Cautions:
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 it’s copy feature.
Unexpected behaviour may occur.

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User Manual for the RA400 Remote Annunciator
2.2 GSC400 Firmware Version
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 sections 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 the RA400 supports.
2.3 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 -400C to 850C,
and corrosive materials.
Intended for indoor, stationary mounting only. Please consult factory for outdoor
or high vibration mounting locations
The annunciator is designed to fit in a common 8”x 8” x 4” breakout box –for
example Hoffman ASG8X8X4. Refer to Figure 14 –Hoffman 8x8x4Pull B on
page 39.Also see Figure 2 –Size and placement of mounting holes below
for the RA400 mounting dimensions.
2.3.1 RA400 Mounting Dimensions
Figure 2 gives the dimensions of the RA400 mounting holes in inches.
The dimensions of the PCB behind the front plate is 5.2”(W) x 6”(L). The depth
of the RA400 is approximately 0.9” (without connectors plug in) and 1.2”
(connectors plugged in).

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User Manual for the RA400 Remote Annunciator
Figure 2 –Size and placement of mounting holes (not to scale).

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User Manual for the RA400 Remote Annunciator
2.4 RA400 Terminals
The RA400 can be powered from a 12VDC or 24VDC source. It will not
operate below 6VDC and voltages above 30VDC 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.
Table 1 on page 11 lists the minimum wire size, maximum current capacity,
name, and function of each circuit. The wire gages given in the table are the
minimum recommended only.

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User Manual for the RA400 Remote Annunciator
Figure 3 –RA400 terminals as seen from the rear. Refer to following tables
for more detailed information.
Modbus 1
Modbus 2
Jumper J13
(2 pin)
DIP Switch
Jumper J2
(3pin)
Programming Port
DB9
Power
User Input 1
User Input 2
Pin 1
Pin 1: NC
Pin 2: A(+)
Pin 3: COM
Pin 4: B(-)
Pin 5: NC
Short Jumper J13
if last device on net
(Default).
Pins 2 and 3 are
shorted by
default. Location
does not matter
for operation.
Switch 1
Switch 8
Pin 1
Pin 1 (+V)
GND
EARTH
Master/Slave: position 1 (OFF =
master, ON = Slave)
BAUD: position 2 (OFF = 9600, ON =
19200)
Device ID: positions 3 to 8 (3 on =
address of 1, 4 on = address of 2)
Default is master, 9600, addr = 1.
Pin 1: Pwr
Pin 2: Gnd
Pin 1
6 –30VDC, 3W

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User Manual for the RA400 Remote Annunciator
Table 1 –RA400 Terminal Details
Wire sizes given below are the minimum recommended only. Depending on the length of
the cable run you may require a larger gauge wire.
Power
(J14)
Terminal
Terminal
#
Wire
Size
(AWG)
Function
+VDC 1
1
18
Main power for the device.
COM
2
18
Ground for the device.
Earth
3
18
Chassis or electrical earth. 2
1Allowable voltage range is +6VDC to +30VDC.
2Connect this to the chassis of the generator or ground of the
electrical system (preferred).
Modbus
(J9, J10)1
Terminal
Terminal
#
Wire
Size
(AWG)
Function
NC
1
N/A
Do not connect.
A (+)
2
24
The positive (A) for 2-wire
Modbus.
COM2
3
24
Modbus common (ground).
B (-)
4
24
The negative (B) for 2-wire
Modbus.
NC
5
N/A
Do not connect.
1There 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).
2This must be connected to the GSC400 Modbus ground.
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. See section 3.7 Digital
Inputs 1 and 2 on page 25.Reverse polarity protected to 30V.
Damage will occur if the voltage exceeds this.

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User Manual for the RA400 Remote Annunciator
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
These control the BAUD rate: OFF = 9600, ON =
19200. Default is OFF (9600).
3
Switches 3 to 8 are the device ID of the GSC400 unit
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 3 to determine the position of
the switches for other addresses.
4
5
6
7
8
Note: All DIP switches in the OFF position places the RA-400 in a factory test
mode. To exit this mode move at least one switch to on position and cycle power.
Table 3 –Device ID DIP Switch Position
OFF is indicated by a series of lines. “ON” is used to denote that the switch is in
the “ON” position.
Device ID
Switch 3
(x1)
Switch 4
(x2)
Switch 5
(x4)
Switch 6
(x8)
Switch 7
(x16)
Switch 8
(x32)
Software
specified.
---
---
---
---
---
---
1
ON
---
---
---
---
---
2
---
ON
---
---
---
---
3
ON
ON
---
---
---
---
4
---
---
ON
---
---
---
5
ON
---
ON
---
---
---
6
---
ON
ON
---
---
---
7
ON
ON
ON
---
---
---
8
---
---
---
ON
---
---
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
brackets) add up to the device ID). There is a unique combination
for each device ID.
E.g. Device ID 11 = Switch 1, Switch 2, and Switch 4 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

Figure 4 TG410 to RA400

Figure 5 –GSC400 to RA400

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User Manual for the RA400 Remote Annunciator
2.5 RA400 Installation Guide
Important: Pretest the controller and RA400 by connecting them directly to each
side of the DynaGen harness (G3/G4) and confirm proper communications.
This section will step you though the installation and setup of the RA400 to
communicate with the DynaGen controller. While reading the following sections
refer to Table 4 below for the required and optional parts and tools.
Table 4 –RA400 Installation Part List
Ident.
Item
Manufacturer
and Part #
Elec.
Supplier Part
#
DynaGen
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
Dynagen
DWG1454
N/A
DWG1454
Premade 5ft adapter
cable to plug into
GSC400 with pigtails
on other end.
G4
TG410
DWG1522
Dynagen
DWG1522
N/A
DWG1522
TG410 5ft
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 In 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).
I
Pull Box Type
1, 8x8x4”
Hoffman
ASE8X8X4
N/A
ACC0109
Mounting box for
RA400.
J
AC Power
Supply (12V)1
Mean Well
LPL-18-12
N/A
ACC0120
1Power supply is fully enclosed (IP64 rating) and rated from -300C to 700C with
derating after 500C. See pages 40 and 41 for the datasheet. Indoor use only.
2.5.1 Main RS485 Cable from Controller to RA400
Always run new wiring unless you can verify that its meets the below
requirements. Using unknown wiring can result in unreliable communications. In
the case of the GSC400 the controller can be damaged.

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User Manual for the RA400 Remote Annunciator
The communication cabling and its installation must meet these conditions:
1. A twisted pair cable with an impedance of 120Ohms (such as G2). Note
the impedance rating of the cable is not the same as the resistance of its
wires. Check with the cable manufacturer to ensure you have the proper
impedance cable.
2. The wires for A and B need on a 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 120Ohm resistors 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 not to
run power and ground wires in the same cable/conduit as the Modbus
communication wires to prevent noise from affecting communications.
2.5.2 Controller Connections
Ensure that the generator is disabled before doing any
work on it or the controller.
DynaGen sells an accessory harness that connects directly to the GSC400 (G3)
or TG410 (G4). The harnesses are 5 feet long. It is recommend that you cut the
length so that it is no longer than 3 to 6 inches. Then connect it to the main cable
(see previous section) using butt connectors or some other connection method.
This length provides the best immunity against noise.
GSC400 Notes:
1. For long distances (> 100ft) 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 100Ohm resistor between
Modbus common and battery -. This may cause damage to the GSC400
Modbus transceiver in some applications. It is recommended to run a jumper
from Modbus common to battery negative on the GSC400.

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User Manual for the RA400 Remote Annunciator
To determine if this resistor is in your unit disconnect the Modbus cable from the
GSC400 and measure resistance from Modbus ground (common) on the
GSC400 Modbus terminal (pin 2) to the GSC400 battery negative terminal. If it
reads 100Ohms then your unit has the resistor.
2.5.3 Mount the 8 x 8 x 4” Pull Box
The RA400 is designed to fit in an 8x8x4” 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.
The next section will detail how to make the connections to the RA400.
2.5.4 RA400 Connections
Refer to Table 1 –RA400 Terminal Details on page 11 when reading this section.
1. Connect the Modbus A, B, and ground wires to one of the two five-pin screw
terminals. It does not matter which one 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 6VDC although it is
recommended 9VDC or greater in case of voltage drops or other unforeseen
issues.
A simple two prong AC wall adapter can be used to provide power. It must
be able to supply a minimum of 3 Watts (250mA at 12V, 125mA at 24V).
Dynagen also sells a 12VDC power supply: ACC0120 (indoor use only).

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User Manual for the RA400 Remote Annunciator
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 5 –Wire Size to determine the proper gauge of wire to use for power
and ground.
If powering the controller and RA400 from the same battery for runs longer
than 100ft 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, m (ft)
Wire Gauge
0-137 (0-450)
22
137-213 (450-700)
20
213-343 (700-1125)
18
343-549 (1124-1800)
16
549-853 (1800-2800)
14
2.5.5 GSC400/TG410 Front Panel Configuration
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.
1. Modbus BAUD rate –The RA400 can only support 9600 (default) and 19200.
Set the BAUD rate in the GSC400: Advanced Menu>Set Modbus>Baud Rate
or TG410: Communications > Modbus > Baud Rate.
2. Modbus Device ID –The RA400 can support slave address 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 GSC400: Advanced

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User Manual for the RA400 Remote Annunciator
Menu>Set Modbus>Device Address or TG410: Communications > Modbus >
Device Address.
2.5.6 RA400 Configuration
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
GSC400/TG410 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 GSC400/TG410 and send them to
the RA400 unit(s). See the appendix 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.
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 9600BPS or to the
ON position for 19200BPS. This should match what was set in the
GSC400 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
GSC400 front panel menu.

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User Manual for the RA400 Remote Annunciator
RA400 Slave Mode
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 9600BPS or to the
ON position for 19200BPS.
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 the unit may be defective.
Contact DynaGen for further information.
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:
1. If using the Dynagen 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.
2. GSC400 only: Check the firmware version on the GSC400.
Requires firmware version 2.00 or latter. RA400 will
communicate with GSC400 with firmware version 1.38 or
latter but not all lamp indications will work or work properly.
3. Ensure that the Modbus A and B connections are not
reversed on the controller and RA400. Ensure that the
Modbus ground is connected.
4. Ensure the BAUD rate is the same on all slaves and master
RA400 units and in the controller front panel menu.
5. If the RA400 is a slave, ensure that the Modbus device
address is set to an address of 2, 3, or 4.
6. 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.