Psc Checkout Procedure; Psc Digital Output Tests - Komatsu 930E-2 Shop Manual

PSC Checkout Procedure

PSC Digital Output Tests:

1. Turn OFF the Control Power Switch.
2. Place the Rest Switch In the cab in the OFF
position. Turn Park Brake switch ON.
3. Disconnect the round connector at the top of each
Phase Module and Chopper Module.
4. Connect the serial communication cable from the
PTU to the PSC port, behind the center console
on the driver's side.
5. Turn ON the Control Power Switch.
6. Type the following on the PTU keyboard:
¤ c:\>ACNMENU {enter}
¤ Highlight "PTU TCI and PSC" {enter}
¤ Type your name {enter}
¤ Type your password {enter}
¤ Cursor to "Engine Stopped Tasks" {enter}
¤ Cursor to "Manual Test Mode" {enter}
STEP DO NAME
1 GF GF Contactor
2 GFR GFR Contactor
3 RP1 RP1 Contactor
4 RP2 RP2 Contactor
5 RP3 RP3 Contactor
6 CPRL Control Power Relay
7 AFSE Alternator Field Static Exciter
8 SYSRUN Control System OK LED
9 TEST Test Mode LED
10 REST Rest Mode LED
11 SYSFLT System Fault LED
For steps 12 & 13, jumper a 20K ohm resistor across circuits 72FD (TB23) to 712 (TB32) and a 20K ohm resistor across circuits 79RD
(TB23) to 712 (TB32). Remove resistors after steps 12 and 13 are completed.
12 FORT Forward Travel Direction
13 REVT Reverse Travel Direction
Gate Drive Power, Inverter 1 Enable
14 GD1E
Signal
Gate Drive Power, Inverter 2 Enable
15 GD2E
Signal
16 CMCTL Chopper Module Control
17 AUXRESET AUX Inverter Reset
E3-18
TABLE IV: PSC DIGITAL OUTPUT TEST
DESCRIPTION
Verify the GF contactor picks up and GFFB is highlighted on the PTU
(NOTE: The GF Cutout Switch must be in the NORMAL (up) position to
check).
Verify the GFR relay picks up and GFRFB is highlighted.
Verify RP1 picks up and RP1FB is highlighted.
Verify RP2 picks up and RP2FB is highlighted.
Verify RP3 picks up and RP3FB is highlighted.
With CPRL highlighted turn off CPS and verify that control power is not
lost. Turn CPS back on.
With AFSE highlighted verify 24 volts to ground on the "+25" terminal on
the AFSE terminal board.
Verify the second LED from the top (labelled Control System OK), located
on Information Display Panel on the side of the control cabinet is ON.
Verify the fourth LED from the top (labelled Test Mode), located on the
Information Display Panel on the side of the control cabinet is ON.
Verify the fifth LED from the top (labelled Rest Mode), located on the
Information Display Panel on the side of the control cabinet is ON.
Verify the third LED from the top (labelled System Fault), located on the
side of the control cabinet is on.
Verify circuit 72FD changes from 24VDC to 0VDC when FORT is activated
Verify circuit 79RD changes from 24VDC to 0VDC when REVT is activated
Refer to steps 8 through 15 in digital output test procedure.
Refer to steps 16 through 24 in digital output test procedure.
Do not check.
Do not check.
AC Drive System Electrical Checkout Procedure
(Release 17 Software)
7. Highlight the devices listed in steps 1 through 11
in the Table below on the digital output section on
this screen and then press {enter}. Press {enter}
again to turn off
8. For step 14 (GD1E) in Table IV below, use an AC
voltmeter set on 750V AC scale to check for 90
to 100 volts AC between the pins on each round
connector removed in step 3 (cable side) to In-
verter 1, (top row).
9. Use the AC voltmeter to check for 90 to 100 volts
AC between the pins on the round connector on
the top of Chopper Module One (CM1 G-X) re-
moved in step 3.
¤ Press {escape} {escape}
10. Turn OFF the Control Power Switch
11. Reconnect the round connectors to Inverter 1.
12. Reconnect the round connector to Chopper Mod-
ule 1.
DEVICE CHECKOUT
3/01 E03015