16
12. Troubleshooting
This section only describes how to handle hardware errors. Refer to the configura-
tion program’s online help for errors related to the software.
1)
If actuator end position = valve end position, mount the sensor as described in
section 11.3.2
12.1Electrical test values
Error
Possible reason
Measures to be taken
Valve cannot be moved by
actuator
Malfunction of actuator or
valve (e.g. cable gland fas-
tened too tightly)
Disconnect the actuator
from the valve.
If the actuator is working
properly then, the valve is
likely to be defective. Oth-
erwise, the actuator
seems to be the error
source.
Actuator does not react
No communication
Set up communication
using the configuration
program
Motor / brake is defective
Check the winding resis-
tances of the motor and
brake. Check the brake
fuse.
Digital inputs of electron-
ics are not connected
Connect
Brake does not release (no
audible “click“ noise)
Check the air gap (should
be around 0.25 mm) and
the electrical connection
of the brake.
Check the winding resis-
tance of the brake coil.
Actuator does not work in
automatic mode, although
“AUT“ has been selected
in the configuration pro-
gram
Digital input 1 (DI 1) has
not been connected.
Connect DI 1.
LEDs on the commission-
ing and service field are
flashing simultaneously
Actuator has not been
adjusted properly
Adjust the actuator.
Fault when approaching
an end position
Actuator is working in the
limit range of the position
sensor
-
Move the actuator ei-
ther manually or with
the CSF buttons to a
position beyond the
end posi-
tion
1)
(disconnect from
valve if required).
-
Move actuator back. If
required, reconnect to
to the valve (if applica-
ble)
-
Adapt actuator to new
operating range
Table 5:
Motor MC 090 BA
Motor MC 112 BA
Winding resistance ± 5% at 20° C
(motor)
3,7 Ohm
1,4 Ohm
Winding resistance ± 5% at 20° C
(brake)
1290 Ohm
1020 Ohm
Table 6:
