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Section 3. Local Operation
User Diagnostics
Release A 45
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. They 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 mains supply, if possible.
3. 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 and external programming.
3. Test the power supply with no load, running the tests in “Functional Tests” on
page 29.
4. If the tests show that the power supply is functioning normally, check all load,
programming, and monitoring connections and circuits.
5. Check the AC input for correct voltage and frequency.
If the problem is not solved after you have followed this procedure, or if the unit fails
to operate correctly upon retesting, call your service technician.
Turn to “Trouble Shooting for Operators” below for more information about
troubleshooting for operators.
Trouble
Shooting for
Operators
Use the checks in Table 3.2 to ensure that the power supply is configured and
connected for normal operation. If you need any further troubleshooting, call your
service technician.
Abbreviated References Used in Table
OVP over voltage protection
S/D shutdown