Faults and Failure
Remedy
Description/cause
Indication on display
●
Cool down, wait.
●
If the fault indication display persists after cool-
ing down:
-
Set selector switch to position Local con-
trol (LOCAL) and reset fault indication via
push button RESET.
-
Execute reset command via fieldbus.
●
Check fuses.
Motor protection tripped
Thermal fault
Check movement at actuator.
No actuator reaction to operation commands within
the set reaction time.
Fault no reaction
Check device configuration:
Parameter
Low limit Uspan M0832
must be less
than parameter
Volt.level diff. potent. M0833
.
Potentiometer is outside the permissible range.
Poti Out of Range
Check wiring.
Loss of signal analogue input 1
Wrn input AIN 1
Check wiring.
Loss of signal analogue input 2
Wrn input AIN 2
Check operation command control.
For 3-phase AC current mains, activate phase
monitoring (parameter
Adapt rotary dir. M0171
).
Check device configuration setting (parameter
Closing rotation M0176
).
To delete the fault indication: Disconnect actuator
controls from the mains and perform reboot.
Contrary to the configured direction of rotation and
the active operation command, the motor turns into
the wrong direction.
Incorrect rotary direct.
Motor protection: Fault within converter
Converter fault
Table 31:
Not ready REMOTE and Function check (collective signal 04)
Remedy
Description/cause
Indication on display
●
Check operation commands (reset/clear all op-
eration commands and send one operation
command only).
●
Set parameter
Positioner
to
Function active
.
●
Check setpoint.
Press push button
Details
to display a list of indi-
vidual indications.
For a description of the individual signals, refer to
Manual (Operation and setting).
Collective signal 13:
Possible causes:
●
Several operation commands (e.g. OPEN and
CLOSE simultaneously, or OPEN and SET-
POINT operation simultaneously)
●
A setpoint is present and the positioner is not
active
Wrong oper. cmd
Set selector switch to position REMOTE.
Selector switch is not in position REMOTE.
Sel. sw. not REMOTE
Exit service software.
Operation via service interface (Bluetooth) and
AUMA CDT service software.
Service active
Check setting and status of function <Local controls
enable>.
Actuator is in operation mode Disabled.
Disabled
●
Enable EMERGENCY stop switch.
●
Reset EMERGENCY stop state by means of
Reset command.
The EMERGENCY stop switch has been operated.
The motor control power supply (contactors or
thyristors) is disconnected.
EMCY stop active
●
Detect cause for EMERGENCY signal.
●
Verify failure source.
●
Apply +24 V DC at EMERGENCY input.
Operation mode EMERGENCY is active (EMER-
GENCY signal was sent).
0 V are applied at the EMERGENCY input.
EMCY behav. active
Check I/O interface.
The actuator is controlled via the I/O interface (par-
allel).
I/O interface
Start motor operation.
Manual operation is activated.
Handwheel active
Verify master configuration
Fieldbus connection available, however no process
data transmission by the master.
FailState fieldbus
Release push button STOP.
A local STOP is active.
Push button STOP of local controls is operated.
Local STOP
80
SQVEx 05.2 – SQVEx 14.2/ SQRVEx 05.2 – SQRVEx 14.2 Control unit: electronic (MWG)
Corrective action
ACVExC 01.2 Modbus RTU
