Faults; Fault (Display) - SAF Opal Pro MS6 Series Installation & Operating Procedures

6 FAULTS

Fault (display)

IOC
MTR OVRLD
PHASE LOSS
SHEAR PIN
SHORTED SCR
HEAT SINK OT
COMM FLT
POWERING UP
Instantaneous Over Current
- Current has reached a value of 1000% of stack size
- Usually a short circuit on the output or misfiring of SCR's
- This fault cannot be disabled
Motor Thermal Overload (calculated)
- motor has been drawing over 100% of motor nameplate current
for a specified amount of time based on the class of overload
selected in group 15 parameter 2
- after this fault has occurred the Opal Pro will not allow a reset
for approx. 6 minutes (this is to allow the motor to cool down)
- this fault can be disabled in group 15 parameter 2
Incoming Phase Loss
- one of the incoming phases is missing or abnormally low
- phase voltages can be read in group 1 parameters 2, 3, and 4
- this fault will not be triggered until the motor is commanded to
start
- this fault cannot be disabled
Excessive Motor Current While Running
- if the Opal Pro is phased fully on and the motor is up to speed
this fault will be triggered if the current goes above 300%
- this fault can be disabled in group 15 parameter 1
Shorted SCR Fault
- this fault will not be triggered until the motor is commanded to
start
- this fault cannot be disabled
Heat Sink Over Temperature
- One of three temperature switches mounted on the heat sink has
been triggered
- These switches trigger at approx. 85 degrees Celsius
- The switches are only mounted on units which include fans
- This fault cannot be disabled
Communication Fault
- a loss of communication between the Opal Pro and the master
device has been detected based on a watch dog bit that is sent
back an forth
- this fault is disabled when no communication cards are installed
on the Opal Pro
- this fault can also be disabled in group 15 parameter 3
- the time delay for the watch dog bit can be set in group 15
parameter 4
Power Up Sequence
- the Opal Pro will be faulted for the first 6 seconds after the
120VAC control power is applied
- this allows time for everything to initialize and then a fault reset
is automatically applied at the end of the 6 seconds
MS6 REDUCED VOLTAGE STARTER
Description
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