User’s Manual
39
This fault may occur if the regen is connected to multiple drives, with blocking
diodes between each drive ant the regen. This topology is not supported.
Please contact Bonitron for possible alternative common bus solutions.
5.3.8.
D
IFFERENTIAL
O
VERVOLTAGE
Differential overvoltage can be caused by the same reasons as the DC
Overvoltage. Refer to Section 5.3.7.
5.3.9.
S
YNC
L
OSS
Ensure that the overcurrent devices on the incoming AC line are intact.
Ensure that the AC source is properly sized for the application. "Soft" or high
impedance sources can have significant voltage distortion that can cause the
unit to lose sync. You can check for voltage distortion on the incoming AC
line with an oscilloscope and probes of an appropriate voltage class. It will
be important to be watching the AC line when the Sync Loss fault occurs, as
the distortion may not be present all the time, especially when the line is not
loaded.
If a sync loss fault is listed in the fault log in conjunction with a Precharge not
Complete fault, this indicates that control power to the unit has been reset.
No actual sync loss condition has occurred.
5.3.10.
IGBT
D
RIVER
This fault can be reset by toggling the enable input. (4.5.2)
If the fault cannot be cleared, or occurs frequently, the unit may be damaged.
Contact Bonitron for assistance.
If two M3645P units are operated in parallel, IGBT faults may indicate that
the parallel combination is undersized for the application.
5.3.11.
P
HASE
O
VERCURRENT
This fault can be cleared by toggling the enable input. (4.5.2)
If it occurs frequently, there may be a voltage imbalance on the incoming AC
line. Ensure that the incoming line voltages are within 3% of each other.
5.3.12.
P
HASE
L
OSS
This fault typically means that the incoming power overcurrent devices or
fuses are blown.
Power the unit down and check all fuses and that AC voltage is present at
the terminals of the Regen.
5.3.13.
DC
U
NDERVOLTAGE
This may indicate that overcurrent devices in the DC link may have opened.
Check the AC and DC voltages with an external voltmeter and make sure
they are within specification.
If the voltages are correct, and the fault will not clear, contact Bonitron for
assistance.
5.3.14.
R
EGEN
P
OWER
-O
N
/P
RECHARGE
N
OT
C
OMPLETE
This fault is expected to occur every time the unit powers on. It should clear
automatically within ten seconds.
If the fault does not clear automatically, power the M3645P down and check
all incoming AC and DC fuses or overcurrent devices.
Ensure that DC bus voltage is present at the terminals of the regen, at the
Summary of Contents for M3645P
Page 14: ...M3645P 14 This page intentionally left blank ...
Page 22: ...M3645P 22 Figure 3 5 M3645P 150A 225A and 300A Connection Locations ...
Page 27: ...User s Manual 27 Figure 3 9 M3645P 150A 225A and 300A Power Wiring ...
Page 30: ...M3645P 30 This page intentionally left blank ...
Page 45: ...User s Manual 45 Figure 6 2 M3645P M11 Chassis Dimensional Outline ...
Page 46: ...M3645P 46 Figure 6 3 M3645P M12 Chassis Dimensional Outline ...
Page 47: ...User s Manual 47 Figure 6 4 M3645P M15 Dimensional Outline ...
Page 48: ...M3645P 48 Figure 6 5 M3645 M15 Line Reactor Dimensional Outline ...
Page 50: ...M3645P 50 6 7 BLOCK DIAGRAM Figure 6 7 Typical Customer Application ...
Page 53: ...User s Manual 53 NOTES ...
Page 54: ...M3645P 54 ...
Page 55: ......
