Fault Messages Generated by the Drive
Table 70: Fault Messages Generated by the Drive
CODE
FAULT
CAUSE
WHAT TO DO
0001
OVERCURRENT (2310) 0305 bit 0 Output current has exceeded trip
level .
Check motor load .
Check acceleration time (2202 and 2505) .
Check motor and motor cable (including phasing) .
Check ambient conditions . Load capacity decreases if installation site ambient
temperature exceeds 40 °C .
See section Derating on page 350 .
0002
DC OVERVOLT (3210) 0305 bit 1
Excessive intermediate circuit DC
voltage . DC overvoltage trip limit is
420 V for 200 V drives and 840 V
for 400 V drives .
Check that overvoltage controller is on (parameter 2505 OVERVOLT CTRL) .
Check input power line for static or transient overvoltage .
Check deceleration time (2203, 2206) .
0003
DEV OVERTEMP (4210)
0305 bit 2
Drive IGBT temperature is
excessive . Fault trip limit is 135 °C .
Check ambient conditions . See also section Derating on page 103 .
Check air flow and fan operation.
Check motor power against unit power .
0004
SHORT CIRC (2340)
0305 bit 3
Short circuit in motor cable(s) or
motor
Check motor and motor cable .
0006
DC UNDERVOLT (3220)
0305 bit 5
Intermediate circuit DC voltage is
not sufficient due to missing input
power line phase, blown fuse,
rectifier bridge internal fault or too
low input power .
Check that undervoltage controller is on (parameter 2006 UNDERVOLT CTRL) .
Check input power supply and fuses .
0007
AI1 LOSS (8110) 0305 bit 6
(programmable fault function 3001,
3021)
Analog input AI1 signal has fallen
below limit defined by parameter
3021 AI1 FAULT LIMIT .
Check fault function parameter settings .
Check for proper analog control signal levels .
Check connections .
0008
AI2 LOSS (8110) 0305 bit 7
(programmable fault function 3001,
3022)
Analog input AI2 signal has fallen
below limit defined by parameter
3022 AI2 FAULT LIMIT .
Check fault function parameter settings .
Check for proper analog control signal levels . Check connections .
0009
MOT OVERTEMP (4310)
0305 bit 8 (programmable fault
function 0305…3009 / 3504)
Motor temperature is too high (or
appears to be too high) due to
excessive load, insufficient motor
power, inadequate cooling or
incorrect start-up data .
Check motor ratings, load and cooling .
Check start-up data .
Check fault function parameters .
Measured motor temperature
has exceeded fault limit set by
parameter 3504 FAULT LIMIT .
Check value of fault limit .
Check that actual number of sensors corresponds to value set by parameter
(3501 SENSOR TYPE) .
Let motor cool down . Ensure proper motor cooling:
Check cooling fan, clean cooling surfaces, etc .
0010
PANEL LOSS (5300) 0305 bit 9
(programmable fault function 3002)
Control panel selected as active
control location for drive has
ceased communicating .
Check panel connection .
Check fault function parameters .
Check control panel connector. Refit control panel in mounting platform.
If drive is in external control mode (REM) and is set to accept start/stop,
direction commands or references via control panel:
Check Group 10: AcStart/Stop/Dir and Group 11: Reference Select settings .
0012
0012
MOTOR STALL (7121)
0305 bit 11 (programmable fault
function 3010…3012)
Motor is operating in stall region
due to e .g . excessive load or
insufficient motor power.
Check motor load and drive ratings .
Check fault function parameters .
0014
EXT FAULT 1 (9000) 0305 bit 13
(programmable fault function 3003)
External fault 1 Check external
devices for faults .
Check parameter 3003 EXTERNAL FAULT 1 setting .
0015
EXT FAULT 2 (9001) 0305 bit 14
(programmable fault function 3004)
External fault 2 Check external
devices for faults .
Check parameter 3004 EXTERNAL FAULT 2 setting .
0016
EARTH FAULT (2330) 0305 bit 15
(programmable fault function 3017)
Drive has detected earth (ground)
fault in motor or motor cable .
Check motor .
Check fault function parameters .
Check motor cable . Motor cable length must not exceed maximum
specifications.
See section Motor connection data on page 104 .
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Summary of Contents for ACS320
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