Komatsu 830E-AC Shop Manual page 453

TCI Digital Output Tests
1. Connect the serial communication cable from the
PTU to the TCI port (DIAG3) on the DID panel
located on the back wall of the operator cab.
2. Make sure that the directional control lever is in
PARK and the rest switch is in the REST position.
3. Turn control power switch (1, Figure 3-1) and the
key switch ON.
NOTE: The lamp test switch for the overhead panel will
not activate the GE propulsion system lamps when the
PTU is in the Manual Test mode.
STEP INPUT
1 BATSEPC
2 LINKONLT
SPD1
3
SPD2
4 NORETARD
5 NOPROPEL
6 PSCNOTRDY
7 RESTLT
8 REDUCELT
9 RTRDCON
10 BATTCHRGR
11 ENGSPDSET
12 REVERSELT
13 RETARDXLT
14 RETARDLT
15 TEMPWARN
16 PSCWARNLT
17 HYDBHOTLT
18 ENGCRANK
E03018 10/06
To check the PSC digital outputs:
TABLE V. TCI DIGITAL OUTPUT CHECKS
DESCRIPTION
Battery Separate Relay - Measure 24 VDC from circuit 21BSR @ TB28 to
ground. With BATSEPC highlighted on the PTU, press {enter}. Verify 0 VDC.
Link Energized Light on the back of the center console will illuminate.
not used
not used
No Retard/Propel Light will illuminate.
No Propel Light will illuminate.
Propulsion System Not Ready Light will illuminate.
Propulsion System at Rest Light will illuminate.
Propulsion System at Reduced Level Light will illuminate.
Retard System at Continuous Level Light will illuminate.
Battery Charger System Failure Light will illuminate. (NOTE: This function is
controlled by the VHMS Interface Module. See VHMS/ Interface Module
Checkout Procedure to fully test this function.)
not used
Backup horn and backup lights will activate.
Retard light on top of the cab and at rear of truck will turn on.
Dynamic Retarding Applied Light will illuminate.
Propulsion System Temperature Light will illuminate.
Propulsion System Light will illuminate.
Hydraulic Brake Oil Hot Light - cannot be checked (NOTE: This function is
controlled by the VHMS Interface Module. See VHMS/ Interface Module
Checkout Procedure to test this function.)
Engine Crank Signal - See the following procedure to test this function.
AC Drive System Electrical Checkout Procedure
(Release 21 Software)
Click START > Programs > GEOHVPTU_2.0 >
AC TOOLS > wPTU AC v21.01
Select "Normal" mode {enter}
Type password "ok75e" {enter}
Click "LOGIN to wPTU Toolbox".
Under "Engine Stopped Task", double-click "TCI
Manual Test".
The "TCI Manual Test" screen looks similar to
the "TCI Real Time Data" screen in Figure 3-7.
Clicking the buttons in the "Digital Outputs" field
will toggle the output on and off. See Table V.
LOCATION
(Fig. 3-11)
A5
A6
C6
B6
D6
E6
E5
B4
D3
C5
B5
D5
E3-23