Limitorque
®
MX Electronic Actuator FCD LMENIM2306-09-AQ – 08/17
73
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2. Select “YES” to enter the display that indicates the type of remote control selected.
3. Select “NO” until the required control is displayed. The selections available are:
• Three-wire Maintain Control (default except Modutronic)
Requires two maintained contacts for self-maintained control in OPEN or CLOSE direction.
• Three-wire Inching Control
Requires two momentary contacts to OPEN or CLOSE the valve, or STOP it in mid-travel.
• Two-wire Control
Requires one NO or NC contact. Select “YES” for either.
Valve OPENS if signal “ON.”
or
Valve OPENS if signal “OFF.”
• Four-wire Control
4.19.2 Status
Default Setting is: OFF
Select “NO” to choose whether the inhibit is “ON” or “OFF.”
4.19.3 Custom Input Mode #1 – Momentary ESD/PSESD (Optional)
Custom software is available for the MX that permits the User to establish certain performance characteristics for partial
stroke (PS) testing and momentary contact closure ESD.
Note: These three inputs are normally configurable. However, when this custom mode is enabled, they are set to the
predefined configuration and cannot be changed by the customer.
Input 0 (normal default – ESD) terminal 30:
• Set as disabled, user input function, signal present
Input 1 (normal default – Open Inhibit) terminal 34:
• Set as enabled, partial stroke enable function, signal present = active
Input 2 (normal default – Close Inhibit) terminal 35:
• Set as enabled, partial stroke enable function, signal absent = active
The partial stroke enable signals are setup as redundant signals for safety. There are two signal inputs, and BOTH must
be in the active state. If the partial stroke enable inputs are in the active state, and an input is detected (>800 ms) on the
momentary ESD/PSESD input, then a partial stroke ESD test will be run. If the partial stroke enable inputs are not active
or in a fault state, and an input is detected on the momentary ESD/PSESD input, then the ESD will be latched in and the
actuator will perform ESD until the ESD Release is given.
NOTE: These three inputs are the normal open-close-stop inputs. When this custom mode is enabled, they are set to
the predefined configuration and cannot be changed by the customer. The only change the customer can make is to set
the momentary ESD action (if action is position – then also the target value for the ESD) and the partial stroke
target value.
LMENIM2306-09 AQ.indd 73 Mittwoch23.08.17 08:53
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