Instruction Sheet

C681 1-2005

Installation Instructions for PowerCommand Control 1301

Communications Kit 541−1199
GENERAL INFORMATION Make certain the battery area has been well-ven-
tilated before servicing the battery. Arcing can
This instruction sheet describes the installation of a ignite explosive hydrogen gas given off by bat-
PowerCommand
Control 1301 (PCC) Commu- teries, causing severe personal injury. Arcing
nications Kit. The converter included in this kit is for can occur when a cable is removed or re-at-
RS-232 to RS-485 communications. This kit is used tached, or when the negative (−) battery cable is
to program the PCC 1301 control board and display. connected and a tool used to connect or discon-
nect the positive (+) battery cable touches the
The following parts are included in this kit. frame or other grounded metal part of the gener-
ator set. Always remove the negative (−) cable
Part Description Qty first, and reconnect it last. Make certain hydro-
Interface Wiring Harness 1 gen from the battery, engine fuel, and other ex-
Converter 1
plosive fumes are fully dissipated. This is espe-
cially important if the battery has been con-
nected to a battery charger.
SAFETY PRECAUTIONS
Read these installation instructions completely and KIT INSTALLATION
become familiar with safety warnings, cautions, and Only connect the interface wiring harness to one
the installation procedure before starting. device at a time (see Figure 1). For example, if you
WARNING Incorrect service or replacement of
wish to use a PC to communicate with the display,
parts can result in severe personal injury or disconnect the harness from the control board and
death, and/or equipment damage. Service per- connect the harness to the back of the display.
sonnel must be trained and experienced to per- PCC 1301 Control Board
form electrical and mechanical service.
1. Place the Manual Run/Off/Auto switch of the
Turn off or remove AC power from the battery char- PCC 1301 in the Off mode.
ger and then remove the negative (−) battery cable
from the set starting battery. This is to make sure the WARNING Ignition of explosive battery
genset will not start while working on it. gases can cause severe personal injury. Do
not smoke or cause any spark, arc, or flame
CAUTION Always disconnect a battery char- while servicing batteries.
ger from its AC source before disconnecting the
battery cables. Otherwise, disconnecting the 2. Disconnect the battery charger (if equipped).
cables can result in voltage spikes high enough Remove all electrical supply sources.
to damage the DC control circuits of the genera- 3. Disconnect the engine battery cable(s). Dis-
tor set. connect the negative (−) cable(s) first to reduce
the risk of arcing.
WARNING Accidental starting of the generator
set while working on it can cause severe per- 4. If a display is connected to the control board,
sonal injury or death. Prevent accidental start- disconnect the wire from TB1-3 on the board.
ing by disconnecting the starting battery cables 5. Connect the interface wiring harness to the
(negative [−] first). TB2 connector on the PCC 1301 control board.

PowerCommand is a registered trademark of Cummins Inc. Page 1 of 3

 6. Install the converter on the RS-232 port of your WARNING Ignition of explosive battery
PC. gases can cause severe personal injury. Do
not smoke or cause any spark, arc, or flame
CAUTION The converter will not function
while servicing batteries.
properly if it is installed backwards. Make
sure the RS-232 end of the converter is 2. Disconnect the battery charger (if equipped).
installed on the PC. Remove all electrical supply sources.
7. Connect the interface wiring harness to the 3. Disconnect the engine battery cable(s). Dis-
RS-485 end on the converter. connect the negative (−) cable(s) first to reduce
the risk of arcing.
8. Use cable ties, as necessary, to secure the har-
ness. 4. Disconnect the wire from TB1-3 on the PCC
1301 control board.
WARNING Accidental starting of the gen-
erator set can cause severe personal injury 5. Connect the interface wiring harness to either
or death. Make sure that the PCC is in the the J1 or the J2 connector (whichever one is
OFF mode before connecting the battery not being used by the control) on the back of
cables. the display.
9. Connect the generator starting battery cables 6. Install the converter on the RS-232 port of your
(positive [+] cable first). PC.
10. Reconnect the battery charger (if equipped). CAUTION The converter will not function
properly if it is installed backwards. Make
11. If the control is in sleep mode, wake it up. (The
sure the RS-232 end of the converter is
control should’ve been awakened when the in-
installed on the PC.
terface wiring harness was installed in step 5.)
7. Connect the interface wiring harness to the
a. If a display is not connected, move the
RS-485 end on the converter.
toggle switch to Auto and then back to the
Off position. 8. Use cable ties, as necessary, to secure the har-
ness.
b. If a display is connected and is used to
start and stop the genset, press the Off WARNING Accidental starting of the gen-
button . erator set can cause severe personal injury
or death. Make sure that the PCC is in the
12. When programming is completed, remove the OFF mode before connecting the battery
interface wiring harness. cables.
13. If removed in step 4, reconnect the wire to 9. Connect the generator starting battery cables
TB1-3 on the control board. (positive [+] cable first).
14. Place the Manual Run/Off/Auto switch in the 10. Reconnect the battery charger (if equipped).
desired position.
11. Wake up the display by pressing the Off button
PCC 1301 Display .
To use this kit to communicate with the display,
12. When programming is completed, remove the
make sure the display remains connected to the
interface wiring harness, reconnect the wire to
control board.
TB1-3 on the control board, and place the
1. Place the Manual Run/Off/Auto switch of the Manual Run/Off/Auto switch in the desired posi-
PCC 1301 in the Off mode. tion.

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 OPTIONAL
CONTROL DISPLAY
BOARD

J2

TB1 J1

TB2

INTERFACE
WIRING
HARNESS

RS-232 TO RS-485
CONVERTER

FIGURE 1. KIT INSTALLATION

C681
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