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www.elspec-ltd.com | December 2014 | SMX-0609-0101
User Manual | EQ-ST | V15
ERROR
MEANING
POSSIBLE SOLUTION
E3
Unable to connect capacitor group
Check fuses, switching module, fire cable
E5
Misfiring
Replace switching module
E6
Network Synchronization Error
Filter harmonics
E7
Over temperature
Replace cooling fan, cool the system
E8
Phase shift error/Phase drop
Fix phases failure (deprecated)
E10
System Resonance
Add inductors, change inductors value
Table 9: List of Error Codes and Possible Solutions
Errors definitions may change without any prior notifications.
U
NABLE TO
C
ONNECT
C
APACITOR
G
ROUP
(E3)
P
OSSIBLE
C
AUSES
Whenever the controller connects a group of capacitors during a
it verifies whether or not
current is measured for all three phases thereby confirming the system operation. Should the current
measurements for one or more of the phases be too low, E3 will reported. Causes:
Averaging/Delay: For 8 consecutive network cycles, the limit has been exceeded;
Limits: A deviation of approx. 10% from nominal value is registered;
The next steps:
Action A: The identified group is disconnected and disabled;
Error Reset: Automatically (see below) or manually by activating self-test;
Automatic Reset Delay: The system repeats the self-test on defective groups only, after 1 minute. If the
same groups are detected faulty again, the test is repeated automatically after 2 minutes and the interval
is doubled on each test until the maximum of 10 repeats is reached (with a delay of 512 minutes = 8.5
hours). If the result of each test is not identical to the previous one the interval between tests is reset to 1
minute;
H
OW TO
R
EPAIR
(1)
on check:
This group inductor/s for over-heating and thermistors wiring;
Power supply;
Switching module fuse;
(2)
Try firing this group using another switching module by changing the wiring of the firing cable.
If the faulty group number is changed, change the switching module;
(3)
Check the capacitors;