User Manual MCx-xxxAS-1.05
Page 4 of 18
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Rev.2021.8 [email protected]
OPERATION
DIP switches
The DIP switches allow you to change the
settings on your actuator. To flip a switch,
gently use a small flat-head screwdriver.
See the table below for DIP switch functionality.
DIP
Function
1
2
Baud Rate:
Choose the rate at which information is transferred. See p.4.
3
– 8
Actuator Address:
See p.5.
9
– 11
Deactivated
12
Direction/Calibration:
Toggle while powered to re-calibrate actuator (find valve seat). Also sets
direction in which the actuator will open and close. See p.13.
Example: The RCM model actuator turns clockwise when the signal is decreased with DIP 12 in
the OFF position. Putting DIP 12 in the ON position will cause counter-clockwise turning for a
decrease in signal. For changes in DIP 12 position to take effect, the power to the actuator must
be cycled.
Set the communication parameters
Data bits: 8
Parity: None
Stop bits: 1
Baud Rate: The communication baud rate can be set by using the first two positions of the
DIP switch
selector
. Check the table below for settings.
To change the baud rate, turn off the actuator, change the setting of DIP switches and power it up again.
DIP 1
DIP 2
Baud rate
OFF
OFF
2400 bps
OFF
ON
4800 bps
ON
OFF
9600 bps
ON
ON
19200 bps
Response time: The response time is between 8ms to 35ms. This means, after sending a frame, you have to
wait at least 35ms for the answer coming back from the actuator.
In this example DIPs 1, 2, 5 and 12 are on.
