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2.3
Disconnect the generator set engine starting
battery(ies), negative (--) lead first.
2.4
Disconnect the generator set from load by
opening the line circuit breaker.
3.
Remove the existing controller and
disconnect the electrical connections.
3.1
Remove the junction box panels as needed to
access the wiring.
3.2
Remove the four controller panel screws.
Note: Clearly mark all disconnected leads from
the controller with tape to simplify
reconnection.
3.3
Disconnect the controller harness connectors:
P1
(35-Pin)
D
engine/generator wiring harness.
P2 (14-Pin) Connector for sensor input
D
connections
connections.
P3 (8-Pin) Connector for generator set
D
output voltage sensing and paralleling bus
voltage sensing connections.
P4 (Ethernet) Connector connects to a
D
network communication line.
Note: These connections are typical and may
not apply to all applications. See the
corresponding wiring diagram found in
the operation manual (TP-6861).
3
2
1. P1 (35-pin) connector
2. P2 (14-pin) connector
3. P3 (8-pin) connector
4. P4 Ethernet connector
Figure 2 Controller Harness Connectors
TT-1638
11/14
Connector
and
relay
driver
output
1
GM86969A
4
4.
Reconnect the electrical connections
and install the replacement controller.
4.1
Reconnect all of the electrical connections
disconnected in step 3.3.
4.2
Align the controller panel with the mounting
holes and install four screws.
4.3
Replace the junction box panels if previously
removed.
5.
Restore power to the generator set.
5.1
Reconnect the generator set engine starting
battery, negative (--) lead last.
5.2
Reconnect power to the battery charger, if
equipped.
for
6.
Set the device profile.
6.1
Connect the PC to the Decision-Makerr 3500
controller using a USB cable. See Figure 1 for
the location of the USB connection port.
6.2
Insert the personality profile backup disk/drive
and load the data.
Software and TP-6701 SiteTecht Software
Operation Manual for details.
6.3
Choose one of the following methods to load the
user parameters.
Backup disk/drive.
D
SiteTecht software to load the data from
the user parameter backup disk/drive.
Paper form. Use a PC with SiteTecht to
D
enter the user parameter data from a
filled-out form.
6.4
If any changes are made using SiteTecht,
create a new user parameter data backup
disk/drive.
Software Operation Manual for details.
6.5
Disconnect the USB cable.
6.6
Power down the unit by using the prime power
switch (if equipped) or by disconnecting the
battery negative (--) terminal.
6.7
Wait at least 15 seconds and then power up the
unit by using the prime power switch (if
equipped) or by reconnecting the battery
negative (--) terminal.
6.8
Refer to the Decision-Makerr 3500 Operation
Manual (TP-6861). Calibrate the generator set
as instructed in the Calibration submenu.
Refer to Tech Tools—
Use a PC with
Refer to TP-6701 SiteTecht
3
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