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PSC CHECKOUT
PSC Digital Input Checks
1. Open circuit breakers 1 and 2 for gate driver
power converters 1 and 2.
2. Connect the serial communication cable from the
PTU to the PSC port (DIAG1) on the DID panel
located on the back wall of the operator cab.
3. Make sure that the directional control lever is in
PARK and the rest switch is in the REST position.
4. Turn control power switch (1, Figure 3-1) and the
key switch ON.
E3-12
FIGURE 3-3. PSC REAL TIME DATA SCREEN
AC Drive System Electrical Checkout Procedure
(Version 21 Software)
To check the PSC digital inputs:
Click START > Programs > GEOHVPTU_2.0 >
AC TOOLS > wPTU AC v21.01
Select "Normal" mode {enter}
Type password "ok75e" {enter}
Under "Real Time", double-click "PSC Real Time
Data".
Verify that the analog values are similar to the
example in Figure 3-3. Also, make sure that the
correct truck ID is at the top of the screen and
"COMMLINK" signal under "Modes" reads OK.
The following normal power-on digital inputs
should be highlited: KEYSW, PSOK, CNX,
CPSFB and CNFB.
BRAKEON will be highlited with wire 44R (TB26)
jumpered to 712 (TB22). The wires do not have
to be removed.
GFNCO should be highlited with the GF cutout
switch in the NORMAL position.
10/06 E03018
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