AMETEK XHR 1000 Watt Series - 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
“Standard Operation” on page
51 .
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.