Beck, R&J ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESSCONTROL 11-1_9 用户手册

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Direction of output shaft rotation is determined 

by observing the end of the output shaft (see 
illustrations below).  Direction of rotation is defined 
as the direction of output shaft rotation produced 
by an increasing Demand signal.  Unless otherwise 
specified at the time of order, the output shaft is 
factory set to rotate clockwise in response to an 
increasing signal.

 

Changing the direction of output shaft rotation 

is easily accomplished using the DCM-2 customer 
interface panel (see page 23 for location of 
pushbutton controls) or the HART or Serial 
interface.  Follow the steps below.

  1.  Remove the DCM-2 cover (1/2” bolt heads).
  2.  Position the drive at the present 0% position.
  3.  Press and hold the “CALIBRATE” pushbutton 

on the DCM-2 customer interface panel, then 
press the “SET POS 100%” pushbutton until 
the “ACKNOWLEDGE” LED is lit.*

—OR—

 2. Position the drive at the present 100% 

position.

  3.  Press and hold the “CALIBRATE” pushbutton 

on the DCM-2 customer interface panel, then 
press the “SET POS 0%” pushbutton until the 
“ACKNOWLEDGE” LED is lit.*

  4.  Ensure the drive operates as desired.
 5. Replace the DCM-2 cover and tighten the 

cover bolts to 10 lb-ft (14 N•m) torque.  Reset 
travel index.

* If the “ACKNOWLEDGE” LED does not light, but 

the “POSITION” LED does light, the signal is out 
of acceptable range and was not accepted by the 
DCM-2.  

NOTE:  When either of the above procedures is 
performed, both the 0% and 100% positions are 
automatically set.

DCM-2 LOCAL INTERFACE