AMETEK XHR 1000 Watt Series User Manual
Page 66
Local Operation
User Diagnostics
66
Operating Manual for XHR Series Power Supply
Symptom
Check
Further Checks and Corrections
Output voltage
fluctuating or
regulation poor.
Is unit at current limit?
Increase current limit setting or reduce
load. See
Is input voltage within specified range?
Connect to appropriate AC voltage
source.
Are sense lines connected?
See
“Load Connection” on page 39
and
“Local and Remote Sensing” on page
48
.
Is unit under remote control?
Ensure program source is stable.
Internal circuit.
See your service technician.
Output oscillating.
Check for unstable or oscillating
programming source.
Stabilize programming source connected
to J2.
Peak current drawn by load exceeds
current limit setting of supply (motors,
switchmode loads).
Add external supply capacitance to supply
output.
Internal circuit.
See your service technician.