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Field Devices - Wiring a MD10B-24 / MD20B-24 actuator to a Climatronic CXT / CXR / CSC Actuator

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Field Devices - Wiring a MD10B-24 / MD20B-24 actuator to a Climatronic CXT / CXR / CSC Actuator

Picard Product_Support
‎2018-09-10 08:58 PM

Issue

Wiring a MD10B-24 / MD20B-24 actuator to a Climatronic CXT / CXR / CSC Actuator

Environment

  • MD10B-24
  • MD20B-24
  • Actuator
  • Climatronic
  • CXT
  • CXR
  • CSC

Cause

The Climatronic controller switches the O volt side of the 24 volt supply, but the actuators shows that it requires 24 volts to open and close.

Resolution

The Satchwell range of Climatronic controllers have always switched the 0 volt side of the 24 volt supply to control the actuator position.

CXT Controller - Terminals 13 and 14 provide 0 volts to close or open the actuator. A permanent 24 volts is provided by terminal 37.

For the complete datasheet, please click HERE.

CXR Controller - Terminals 23 and 24 provide 0 volts to close or open the actuator. A permanent 24 volts is provided by terminal 37.

For the complete datasheet, please click HERE.

CSC Controller - Terminals 33 and 32 provide 0 volts to close or open the actuator. A permanent 24 volts is provided by terminal 37.

For the complete datasheet, please click HERE.

The MD10B-24 / MD20B-24 datasheet shows the wiring as follows;

For the complete MD10B datasheet, please click HERE.

For the complete MD20B datasheet, please click HERE.

The above actuator wiring shows a 0 volt connection to the common connection (1) and a switched 24 volt connection (2 or 3).

To connect the MD10B-24 / MD20B-24 actuator to any of the above controllers it will be necessary to connect the actuator as follows.

  • Controller 24 volt  (37) to connection wire (1).
  • Controller Open signal (14, 24 and 32) to connection wire (2).
  • Controller Close signal (13, 23 and 33) to connection wire (3).

Please note that the actuator direction can be changed by repositioning the switch on the front of the actuator.

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