BENSHAW RediStart RB2 User Manual

183
8 - TROUBLESHOOTING & MAINTENANCE
Fault Code Description Detailed Description of Fault / Possible Solutions
F30 I.O.C.
(Instantaneous Over current)
During operation, the MX
2
detected a very high level of current in
one or more phases.
Check motor wiring for short circuits or ground faults.
Check motor for short circuits or ground faults.
Check if power factor or surge capacitors are installed on the motor
side of the starter.
Verify that the motor FLA (P1/QST01) and CT ratio (P78/FUN03)
settings are correct.
F31 Overcurrent Motor current exceeded the Over Current Trip Level setting
(P32/PFN01) for longer than the Over Current Trip Delay Time
setting (P33/PFN02).
Check motor for a jammed or an overload condition.
F34 Undercurrent Motor current dropped under the Under Current Trip Level setting
(P26/PFN03) for longer than the Under Current Trip Delay time
setting (P27/PFN04).
Check system for cause of under current condition.
F37 Current Imbalance A current imbalance larger than the Current Imbalance Trip Level
parameter setting (P36/PFN05) was present for longer than ten (10)
seconds.
Check motor wiring for cause of imbalance. (Verify dual voltage
and 6 lead motors for correct wiring configuration).
Check for large input voltage imbalances that can result in large
current imbalances.
Check motor for internal problems.
F38 Ground Fault Ground current above the Ground Fault Trip level setting
(P37/PFN06) has been detected for longer than 3 seconds.
Check motor wiring for ground faults.
Check motor for ground faults.
Megger motor and cabling (disconnect from starter before testing).
Verify that the motor FLA (P1/QST01) and CT ratio (P78/FUN03)
settings are correct.
Verify that the CTs are installed with all the White dots towards the
input line.
In Single phase applications, verify that only two CTs are being
used; that they are installed with all the White dots or Xs in the
correct direction; and that the CTs are connected to the L1 and L3
CT inputs on the MX
2
control card.
F39 No Current at Run Motor current went below 10% of FLA while the starter was
running.
Verify Motor Connections.
Verify the CT wiring to the MX
2
control card.
Verify that the motor FLA (P1/QST01) and CT ratio (P78.FUN03)
settings are correct.
Check if load is still connected to starter.
Check if motor may have been driven by the load (a regeneration
condition).
Check Gate and Cathode connections to MX
2
for loose connections.
Check for inline contactor or disconnect.

BENSHAW RediStart RB2 Specifications

General

Brand	BENSHAW
Model	RediStart RB2
Category	Controller
Language	English