– Page 29 –
iSaver DPFC 165 & 250 Series Manual
© 2021 Encorp Limited
Ref.
No.
Fault
Causes
Rectification
13
The unit is ON but the
Power Factor has not
improved.
Also, in this condition if
there is:
• Under
compensation
Alarm is ON
•
All banks are ON
indication glow.
Any Individual Step MCB/MCCB may
be tripped.
Potential malfunction of Dynamic
Switching Module (EDS).
Capacitor capacity reduction/failure.
Check if the MCB are off / tripped.
If the MCB is off or tripped, check
carefully to observe any abnormality
through a visual inspection. If nothing is
observed, reset the MCB
Check the indication in Dynamic
Switching Module as follows:
1.
No indication found. (With panel
ON, the Ready LED indicator should
glow). If this does not happen, verify
the voltage of the auxiliary supply,
and ensure it is 24VDC.
2.
If auxiliary supply is not detected or
of correct value, check the SMPS.
3.
If aux. supply is correct, the EDS
may need off-line inspection/ repair
and should be replaced with a new
EDS module.
4.
In case the Ready LED indication
is glowing, but the remaining
indications are not glowing.
5. Check for trigger voltage (12v-
24VDC).
6.
If this is not detected, check
the Heat sink thermostat /
Harmonic Reactor thermostat
whether they are open (as a safety
measure, high temperature opens
these thermostats). When the
temperature is lowered to the
set point, your ISAVER will again
function normally. Standard internal
temperature is 50°C.
7.
If the thermostats are found
defective, replace the thermostat(s).
