User`s guide

Agilent 1100 Series Valves 29
Maintenance, Repair, and Troubleshooting 3
System Errors and Troubleshooting
System Errors and Troubleshooting
System Errors
No line power
Error Cause If the 24 volt DC line power is not available, the yellow Notready
status is displayed in the instrument actuals. If you try to switch the valve,
this status changes to Power.
Actions
1 Check power cable to external power supply or to another 1100 Series
module
2 If the valve power is supplied by another 1100 module, check if this
particular module is switched on.
3 Restart the ChemStation
Figure 14 Display of instrument actuals at a no line power state