Daikin ACS320, Operation Manual

Page: 91 / 116

Alarm Messages Generated by the Drive
Table 68: Alarm Messages Generated by the Drive
CODE ALARM CAUSE WHAT TO DO
2001
OVERCURRENT 0308 bit 0
(programmable
fault function 1610)
Output current limit controller is active .
Check motor load . Check acceleration time (2202 and 2205) .
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 103 .
2002
OVERVOLTAGE 0308 bit 1
(programmable
fault function 1610)
DC overvoltage controller is active .
Check deceleration time (2203 and 2206) .
Check input power line for static or transient overvoltage .
2003
UNDERVOLTAGE 0308 bit 2
(programmable
fault function 1610)
DC undervoltage controller is active . Check input power supply .
2004 DIR LOCK 0308 bit 3 Change of direction is not allowed . Check parameter 1003 DIRECTION settings .
2005
IO COMM 0308 bit 4
(programmable
fault function 3018, 3019)
Fieldbus communication break
Check status of fieldbus communication.
See chapter Fieldbus control with embedded fieldbus
on page 70 .
Check fault function parameter settings .
Check connections .
Check if master can communicate .
2006
AI1 LOSS 0308 bit 5
(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 .
2007
AI2 LOSS 0308 bit 6
(programmable
fault function 3001, 3021)
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 .
2008
PANEL LOSS 0308 bit 7
(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 .
2009
DEVICE OVERTEMP
0308 bit 8
Drive IGBT temperature is excessive . Alarm limit is
120°C .
Check ambient conditions . See also section Derating on page
103 .
Check air flow and fan operation.
Check motor power against unit power .
2010
MOTOR TEMP 0305 bit 9
(programmable fault function
3005…3009 / 3503)
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 alarm limit
set by parameter 3503 ALARM LIMIT .
Check value of alarm limit .
Check that actual number of sensors corresponds to value set
by parameter (2501 SENSOR TYPE) .
Let motor cool down . Ensure proper motor cooling: Check
cooling fan, clean cooling surfaces, etc .
2012
MOTOR STALL 0308 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 .
2013
1
AUTORESET 0308 bit 12 Automatic reset alarm Check parameter Group 31: Automatic Reset settings .
2014
1
AUTOCHANGE 0308 bit 13 PFC Autochange function is active .
2015 PFC I LOCK 0308 bit 14 PFC interlocks are active .
Drive cannot start
• any motor (when Autochange is used)
• the speed regulated motor (when Autochange is not used) .
f
aulT
T
raCIng
www .DaikinApplied .com 91 OM 1190-1 • MD4 VFD