Switch Mode Power Supply
S8VS
13
■
Self-Diagnostics Function
Numbers in the following table indicate the number used in
Nomenclature
on pages 8 and 10.
Note: 1.
External noise is probable as a cause of “
---
”, “
e01
”, “
e02
” and “
e03
” errors.
2.
Operation out of the derating curve area, ventilation error, and incorrect mounting direction are probable as a cause of “
h%t
” error.
3.
If the “
h%t
” error state continues for more than three hours, the maintenance forecast monitor function becomes invalid. The Yrs output
((12) Maintenance forecast output terminal (Yrs)) will remain OFF (no continuity between (12) Maintenance forecast output terminal (Yrs)
and (13) Alarm output common terminal).
Replace the power supply if this condition occurs even if the output is correct, as internal parts may be deteriorated.
4.
The “
h%t
” error detection function is only for the S8VS-
@@@
24A
@
.
(6) Main display
Description
Output status
Restoration method
Setting after restoration
Noise detected in voltage or cur-
rent
No change
Automatic restoration
No change
Overheated
(12) Maintenance
forecast output ter-
minal (Yrs) turns
OFF.
Automatic restoration
No change
Undervoltage alarm set value
memory error
(11) Undervoltage
output terminal (DC
LOW) turns OFF.
Press and hold the (9) Up Key
U
or (10)
Down Key
D
for three seconds and check
the set value of the corresponding point.
The set value must return to the
shipment setting
Shipment setting or
value set in the setting
mode again
Memory error of alarm set value of
maintenance forecast monitor or
total run time monitor
(12) Maintenance
forecast output ter-
minal (Yrs) turns
OFF or total run time
output terminal (kh)
turns OFF.
Other memory error
(11) Undervoltage
output terminal (DC
LOW) turns OFF.
(12) Maintenance
forecast output ter-
minal (Yrs) turns
OFF or total run time
output terminal (kh)
turns OFF.
Turn the AC input OFF then ON again.
If the product is not reset, contact the dealer.
No change