How To Change The Acting Mode And The Fallback Position?26; How To Adjust The Actuator Versus Flow Curve - Milton Roy MAXROY Series Actuator Capacity Control Manual

11 How to change the acting mode and the
fallback position?
The actuator is factory setting up in Direct Acting mode
You can change the position of SW2 dip switch C to run the actuator
in Indirect Action mode (20mA = 0% stroke)
You can use SW2 dip switches A & B to change fallback position in
case signal is lost.
This setting must be done with power off.
Figure 10. Switch 2

11.1 How to adjust the actuator versus flow curve?

To offset the position of the 4mA, as below, follow the operations
described in paragraph 10.1. The number of turns while pushing the
"C" button has to be reduce following the flow curve. It is not necessary
to remove the actuator from the pump.
20
4
Opening
C
direction
Counter-
ON
Clockwise
OFF
Clockwise
Table 9: Switch 2 position
0%
Pump Capacity %
Figure 11. Adjustment to 0% flow
Page 26 of 33
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English
Fallback
position
ON
B
OFF
0% Adjust
A
ON OFF
Stayput Closed
Open Stayput
100%