COMMERCIAL IN CONFIDENCE
MEC-PM-798 MEC Starter Kit ManualMEC-PM-798 MEC Starter Kit ManualMEC-
PM-798 MEC Starter Kit Manual
Page 15
Code
Description
AR
UR
NStop
EStop
501
Power meter comms checksum failure
x
x
502
Power meter comms timeout
x
x
504
VI protection reset
x
x
505
VI protection under-voltage trip
x
x
506
VI protection under-voltage trip
x
x
507
VI protection under-voltage trip
x
x
508
VI protection over-voltage trip
x
x
509
VI protection over-voltage trip
x
x
510
VI protection over-voltage trip
x
x
511
VI protection under-frequency trip
x
x
512
VI protection over-frequency trip
x
x
513
VI protection short-circuit trip
x
x
514
VI protection trip
x
x
603
Low coolant flow rate
x
x
604
Ambient over-temperature
x
x
605
Reset switch fault
x
x
610
Zero coolant flow rate
x
x
Key:
AR = Automatic reset, UR = User Reset
NStop = Normal stop (i.e. Heat source disabled)
EStop = Emergency-stop (i.e. Heat source disabled and engine stopped)
7.2
Clearing Errors
There are two levels of error severity.
Severity Level
Reset Method
1
Automatic reset
2
User Reset
7.2.1
Automatic Reset
Errors that are less severe will be reset automatically. Normally, no manual
intervention is required for this type of error conditions. However, in some cases
manual intervention may be required. For instance, in the case of a faulty sensor, the
error condition will reset automatically but only after the sensor has been
repaired/replaced.
7.2.2
User Reset
When a more serious error occurs, faults that could lead to engine damage, a
physical/electrical check and repair-action might be required. Such errors can only be
cleared by a User Reset. A User Reset can be performed by closing a normally-open