
20
13
FUNCTIONAL FAULTS OF POSITIONER VERSIONS
In case of doubt as to the unit's functionality, firstly set the local/remote selector switch to
"local" and actuate the local open/close controls.
CORRECTIVE ACTION
Check the power supply voltage
(terminals L1, L2, L3 in three-phase
voltage). The voltage is specified on the
identification plate.
Check that the Actuator receives no
emergency control command.
With the unit "off", jumper #27 may be
removed from the "i" board,
taking care to record its position to make
sure it is replaced at the correct location.
With the jumper removed, the ESD
function is inhibited, and a functional
check of the Actuator can be carried out.
Return the jumper to original location.
Check fuses of "I" board and
replace as required.
Check position of jumper 100 on the
"I" board.
Three-phase : position T
Single-phase or DC: position M
The TH light on the "I" board
configuration panel indicates thermal
tripping of thermal protective device. The
Actuator will again be available after the
motor has cooled off.
Check that the handwheel is in
disengaged position.
There must be 11 jumpers on the
"I" board.
There shall be only one jumper on jumper
16-17-18 support and only one jumper on
jumper 19-20-21 support.
PROBLEM
No operation
CAUSE
Actuator power supply
An emergency control
command is present and
inhibits all other
commands.
Fuse blown
Power supply type
configuration
Tripping of motor thermal
protective device
The declutchable manual
control handwheel
remained engaged (only on
versions with electrical
safety contact)
Configuration jumpers are
incorrectly set or missing