36 ACS 400 User’s Manual
Table 5 Alarms
Alarm
Code
Display Description
1 *
OPERATION FAILED Parameter upload or download failed. The software versions of the drives may
not be compatible. Software version can be seen from parameter 3301
SOFTWARE VERSION.
2 *
START ACTIVE Control panel function is not allowed while start is active.
3 *
LOCAL/REMOTE Control panel function is not allowed in current control mode (local or remote).
Control mode is local when LOC is displayed and remote mode when REM is
displayed on the control panel.
5 *
BUTTON DISABLED Control panel function is denied for any of the following reasons:
• START/STOP button is interlocked from digital input. This can happen with
certain digital input configurations. Refer to chapter Application Macros.
• REVERSE button is locked because shaft direction is fixed by parameter
1003
DIRECTION.
• The drive is in remote control mode and START/STOP and REVERSE
buttons are not followed.
6 *
PARAM/LOCAL LOCK Control panel function is not allowed:
• Parameter 1602
PARAMETER LOCK denies parameter editing
• Parameter 1605
LOCAL LOCK denies local control mode.
7 *
FACTORY MACRO Control panel function is not allowed: Factory macro is selected and denies the
parameter modifications. Factory macro is intended for applications where
there is no control panel available.
10 **
OVERCURRENT Overcurrent controller is active.
11 **
OVERVOLTAGE Overvoltage controller is active.
12 **
DC UNDERVOLTAGE Undervoltage controller is active.
13
DIRECTION LOCK Rotation direction if fixed by parameter 1003 DIRECTION.
14
SERIAL COMM LOSS Serial communication through Standard Modbus Channel is lost.
• Check connections between the external control system and the ACS 400.
• Refer to parameters 5003
COMM FAULT TIME and 5004 COMM FAULT FUNC.
15 *, **
MODBUS EXCEPTION Exception response is sent through Standard Modbus channel. The bus master
may be sending queries which cannot be processed by the ACS 400. Refer to
“Standard Serial Communication” section.
Last three exception response codes are stored into parameters 5213 - 5215.
16
AI1 LOSS Analog input 1 loss. Analog input 1 value is less than MINIMUM AI1 (1301). See
also parameter 3001
AI<MIN FUNCTION.
17
AI2 LOSS Analog input 2 loss. Analog input 2 value is less than MINIMUM AI2 (1306). See
also parameter 3001
AI<MIN FUNCTION.
18
PANEL LOSS Panel communication loss. Control panel is disconnected when
- Drive is in local control mode (LOC is shown in the control panel display), or
- Drive is in remote control mode (REM) and is parameterised to accept start/
stop, direction or reference from the panel. Refer to parameters in groups 10
COMMAND INPUTS and 11 REFERENCE SELECT.
See also parameter 3002
PANEL LOSS.
19 **
ACS400 OVERTEMP ACS 400 overtemperature condition. This alarm is given when the temperature
reaches 95% of the trip limit.
20
MOTOR OVERTEMP Motor overtemperature condition as estimated by the ACS 400. Refer to
parameters 3004 – 3008.
21
UNDERLOAD Motor load is too low. Check for a problem in the driven equipment. Refer to
parameters 3013 – 3015.
22
MOTOR STALL Motor is operating in the stall region. This may be caused by excessive load or
insufficient motor power. Refer to parameters 3009 – 3012.
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