PF1352 USER MANUAL REV A 12/21/15
SECTION 4
MAINTENANCE AND TROUBLE SHOOTING
4.1 MAINTENANCE
These power supplies are completely self contained solid state devices and do not
require any routine maintenance. When used within their ratings they will provide many
years of trouble free service. The only foreseen maintenance issue would be
maintaining the ventilation “grills”. Any accumulation of dust and debris should be
removed by brushing or vacuuming.
4.2 TROUBLESHOOTING
THESE UNITS DO NOT CONTAIN USER SERVICEABLE PARTS
REFER ALL SERVICING TO QUALIFIED PERSONNEL ONLY. DO NOT REMOVE COVERS
AND DISCONNECT POWER BEFORE REMOVING FOR SERVICE.
Table 4-1 below should be consulted In the event a problem is encountered during the
operation of this power supply.
OBSERVED SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
No outputs, display indicates V0.0
Voltage not set
Set voltage per section 3
Load does not operate, unit
indicates proper output
OUTPUT switch is off, load
not connected between HI
and Lo AC output.
Check load is switched on. Check
load is connected properly, See
section 2 and 3.
AC output low or fluctuates,
constant current
C/C
flashes
Output overload.
Reduce load.
Output voltage does not change
Unit in power monitor mode
Set to adjust mode, see section 3
Output frequency does not change
Unit in power monitor mode
Set to adjust mode, see section 3
AC output distorted.
Hi harmonic content to load
current. Non-linear load
applied
Check load current waveform.
AC output drops to zero when load
is switched on. Overload “
O/L
” is
displayed.
Output overloaded or shorted
by large in-rush current.
Check load requirement, see
information in section 3 on starting
difficult loads.
No outputs, no displays, input fuse
blows repeatedly.
Internal fault.
Remove unit from use and refer to
qualified service personnel.
Contact factory for service.
WARNING! REPLACE FUSE WITH SAME TYPE AND RATING ONLY.
6.3x32mm cartridge type, 16A / 300VAC min voltage rating
