Local Operation
User Diagnostics
64 Operating Manual for XHR Series Power Supply
User Diagnostics
If your power supply is not performing as described in this manual, run through the
procedures and checks in this section before calling your service technician. These
procedures are confined to operator-level functions only and do not require cover-off
servicing.
Emergency
Shutdown
In an emergency, carry out both of these steps:
1. Shut the power supply off immediately.
2. Disconnect the power supply from the load.
Unusual or
Erratic
Operation
If the power supply displays any unusual or erratic operation, follow these steps:
1. Shut the power supply off immediately.
2. Disconnect the power supply from the load.
3. Test the power supply with no load, running the tests in “Functional Tests” on
page 37.
4. If the tests show that the power supply is functioning normally, check that load,
programming, and monitoring connections and circuits.
5. Check the AC input for correct voltage and frequency.
If the problem is not solved by following this procedure, or if the unit fails to operate
correctly upon retesting, call your service technician.
Troubleshooting
for Operators
Use the checks in Table 3.4, “Quick Diagnostics” to ensure that the power supply is
configured and connected for normal operation. If you require further
troubleshooting, call your service technician.
Abbreviated References Used in Table
ACF AC Fail
OTP over temperature protection
OVP over voltage protection
REM remote mode
S/D shutdown
TM-XROP-01XN.book Page 64 Monday, March 22, 2004 4:10 PM
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