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PME120/RHD250 to 4000 (Contrac)
ELECTRICAL ROTARY ACTUATOR | OI/PME/RHD250/4000-EN REV. F
… 8 Operation
… Manual operation
Handwheel operation in combination with positioning
loop monitoring
The positioning loop monitoring of the electronic unit monitors
actuator behavior. It monitors whether the travel commands
trigger the corresponding processes.
When the supply voltage is switched off, the positioning time-
out function is disabled and handwheel operation is no longer
monitored. If the actuator is moved via the handwheel while the
supply voltage is switched on, the positioning loop monitoring
recognizes this state as ‘travel without travel command’. A
corresponding signal is output.
There are several options for resetting this positioning loop
error:
• Resetting via the commissioning and service field
• Resetting via the graphical user interface
• Changing the setpoint signal by at least 3 % for more
than 1 s
• Wiring of digital inputs BE2 or BE3 (not with step
controller)
If the ‘positioning loop monitoring’ is switched off, the actuator
continues to be monitored for ‘wrong direction’, and a
corresponding message is generated in case of an error.
Change from two to one column