Battery And Control Circuit Checks Of System With Battery Power On; Afse P1 Adjustment; Grr Wiring - Komatsu 930E-2 Shop Manual

AFSE P1 adjustment:

11. Connect an ohmmeter from the wiper of Pot P1
(cathode of ZD1) to Terminal E (GND) on the
Battery Boost Module.
If necessary, adjust P1 to obtain an ohmme-
ter reading of 6000 ohms.
12. Restore the following circuits:
a. Reconnect ground wires at GB1 ground block.
b. Reconnect wire RTN62 on TB4-D.
c. Reconnect the CCLR1 and CCLR2 connectors.

GRR wiring:

13. Remove the circuit #DCP20 wire on the DCPBUS
located to the right of the Main Rectifier Panel
(RD). Connect the VOM positive lead to this wire
and the negative lead to the negative link bus.
Make sure the ground block wires are connected.
Resistance should be 10K ohms.
14. Reconnect DCP20.
15. Measure between the GRRC wire on GFIP Termi-
nal A to ground.
Resistance should be 500 ohms.
16. Restore all circuits, harness connectors etc. Re-
move meters.
17. Close battery disconnect switches. Close all open
circuit breakers.
E03015 3/01 AC Drive System Electrical Checkout Procedure
(Release 17 Software)
Battery and Control Circuit Checks of
System With Battery Power ON
CHECK TO BE CERTAIN LINK VOLTAGE IS
DRAINED OFF before performing tests.
1. Preparation for Power Supply Voltage Checks:
a. Remove the 50 amp system fuse (BATFU)
located on the bottom left wall in the left com-
partment of the control cabinet.
b. If equipped with MTU 396 engine, disconnect
circuits 21SS and 21SR and insulate wire ter-
minals at the engine starter. If equipped with
Komatsu or MTU/DDC 16V4000 engine, dis-
connect circuit 21B wires at the starter sole-
noids and insulate.
c. Open the PSC panel (17FL320) cover and pull
all cards except the 17FB127 power supply
card forward just enough to disconnect the
cards from the panel.
1.) Verify the CNA, CNB, CNC, and CND con-
nectors are installed.
d. Open the TCI panel (located in the Electrical
Interface Cabinet) cover and pull all the cards,
except the 17FB127 power supply card, for-
ward just enough to disconnect the cards from
the panel .
1.) Verify the CNP round connector is installed.
2.) Verify the CNA and CNB connectors are
installed
e. Verify circuit breakers and battery disconnect
switches are closed.
f. Verify key switch and 5 minute idle delay timer
are off.
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