350
Diagnostics and maintenance
ACH550 User's Manual
Fault listing
Fault
code
Fault name in
the panel
Description and
recommended corrective action
1
OVERCURRENT
Output current is excessive. Check for and
correct:
• excessive motor load
• insufficient acceleration time (parameters
2202
ACCELER
TIME
1 and 2205
ACCELER
TIME
2)
• faulty motor, motor cables or connections.
2
DC
OVERVOLT
Intermediate
circuit
DC
voltage is excessive.
Check for and correct:
• static or transient over voltages in the
input power supply
• insufficient deceleration time (parameters
2203
DECELER
TIME
1 and 2206
DECELER
TIME
2)
• undersized brake chopper (if present).
3
DEV
OVERTEMP
Drive heatsink is overheated. Temperature is
at or above 115°C (239°F). Check for and
correct:
• fan failure
• obstructions in the air flow
• dirt or dust coating on the heat sink
• excessive ambient temperature
• excessive motor load.
4
SHORT
CIRC
Fault current. Check for and correct:
• a short-circuit in the motor cable(s) or
motor
• supply disturbances.
5
RESERVED
Not used.
6
DC
UNDERVOLT
Intermediate circuit DC voltage is not
sufficient. Check for and correct:
• missing phase in the input power supply
• blown fuse
• undervoltage in mains.
Summary of Contents for ACH550-01
Page 1: ...ACH550 User s Manual ACH550 01 Drives 0 75 110 kW ACH550 UH Drives 1 150 HP ABB ...
Page 10: ...Update Notice 8 ...
Page 12: ......
Page 18: ...6 ACH550 User s Manual ...
Page 50: ...38 Preparing for installation ACH550 User s Manual ...
Page 325: ...313 ACH550 User s Manual ...
Page 358: ...346 ACH550 User s Manual ...
Page 409: ...Technical data 397 ACH550 User s Manual Frame size R1 IP54 UL Type 12 ...
Page 410: ...398 Technical data ACH550 User s Manual Frame size R2 IP54 UL Type 12 ...
Page 411: ...Technical data 399 ACH550 User s Manual Frame size R3 IP54 UL Type 12 ...
Page 412: ...400 Technical data ACH550 User s Manual Frame size R4 IP54 UL Type 12 ...
Page 413: ...Technical data 401 ACH550 User s Manual Frame size R5 IP54 UL Type 12 ...
Page 414: ...402 Technical data ACH550 User s Manual Frame size R6 IP54 UL Type 12 ...
Page 415: ...Technical data 403 ACH550 User s Manual Frame size R1 IP21 UL Type 1 ...
Page 416: ...404 Technical data ACH550 User s Manual Frame size R2 IP21 UL Type 1 ...
Page 417: ...Technical data 405 ACH550 User s Manual Frame size R3 IP21 UL Type 1 ...
Page 418: ...406 Technical data ACH550 User s Manual Frame size R4 IP21 UL Type 1 ...
Page 419: ...Technical data 407 ACH550 User s Manual Frame size R5 IP21 UL Type 1 ...
Page 420: ...408 Technical data ACH550 User s Manual Frame size R6 IP21 UL Type 1 ...
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