AUMA SQ 05.2 Operation Instructions Manual page 67

SQ 05.2 SQ 14.2 / SQR 05.2
AC 01.2 Intrusive Modbus RTU
Warnings and Out of specification
Indication on display
Wrn input AIN 2
Wrn setpoint position
Op. time warning
Wrn controls temp.
Time not set
RTC voltage
PVST fault
PVST abort
Wrn no reaction
1)
Wrn FOC
1)
Wrn FO cable budget
1)
Wrn FOC connection
Torque wrn OPEN
Torque wrn CLOSE
2)
SIL fault
PVST required
Maintenance required
3)
FQM fail safe fault
1) For actuator controls with FOC connection
2) For actuators controls in SIL version
3) For actuators with fail safe unit
SQR 14.2 Control unit - electromechanical
Description/cause
Warning: Loss of signal analogue input 2
Warning: Loss of signal setpoint position
Possible causes:
For an adjusted setpoint range of e.g. 4
the input signal is 0 (signal loss).
For a setpoint range of 0 20 mA , monitoring is
not possible.
The set time (parameter Perm.op. time, manual
M0570) has been exceeded. The preset operating
time is exceeded for a complete travel from end
position OPEN to end position CLOSED.
Temperature within controls housing too high.
Real time clock has not yet been set.
Voltage of the RTC button cell is too low.
Partial Valve Stroke Test (PVST) could not be suc-
cessfully completed.
Partial Valve Stroke Test (PVST) was aborted or
could not be started.
No actuator reaction to operation commands within
the set reaction time.
Optical receiving signal (channel 1) incorrect (no or
insufficient Rx receive level) or RS-485 format error
(incorrect bit(s))
Warning: FO cable system reserve reached (critical
or permissible Rx receive level)
Warning FO cable connection is not available.
Limit value for torque warning in direction OPEN
exceeded.
Limit value for torque warning in direction CLOSE
exceeded.
SIL sub-assembly fault has occurred.
Execution of PVST (Partial Valve Stroke Tests) is
required.
Maintenance is required.
FQM fault
Remedy
Check wiring.
Check setpoint signal.
20 mA,
The warning indications are automatically cleared
once a new operation command is executed.
Check valve.
Check parameter Perm.op. time, manual
M0570.
Measure/reduce ambient temperature.
Set time.
Replace button cell.
Check actuator (PVST settings).
Perform RESET or restart PVST.
Check movement at actuator.
Check parameter Reaction time M0634.
Check/repair FO cables.
Check/repair FO cables.
Fit FO cable connection.
Check parameter Wrn torque OPEN M0768, re-set
if required.
Check parameter Wrn torque CLOSE M0769, re-
set if required.
Refer to separate Manual Functional Safety.
Checking and fault remedy are required. Refer to
FQM operation instructions.
Corrective action
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