Staubli CS8C - Page 199

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Chapter 8 - Maintenance
8.7.3. TROUBLE SHOOTING
8.7.3.1. CASE 1
• Check D2 circuit breaker inside PSM:
• If it is off, turn it on. It may be due to a temporary overload on power part.
• If it comes back to off position, change D2.
• If its light remains off when it is turned on:
• Check fuses F1, F2, F3.
• Change D2.
• Check the operation of PS1/PS2: Output command signals and feedback information
can be checked from MCP Control Panel and RSI 7-segments error codes.
Figure 8.39
Problem:
ON indicator light remains off when arm is powered.
Solution: Step 1
Solution: Step 2
?
- Controller status
- I/O
-SystemIO
- Inputs
...
4 HPE2 = On
18 BUS_ON2 = On
Step 3: Feedback signals from PS1 and PS2
relays
(RSI error codes L, n)
Step 1: Command signals to enable power on
arm
(RSI error codes i, J)
- Outputs
0 HPE1_EN = On
1 HPE2_EN = On
...
Step 2: Enable power command applied to
PS1 and PS2 relays
(RSI error codes o, P)
5 HPE1 = On
17 BUS_ON1 = On
...