Installation Instructions

Document Number: 129-369
Installation Instructions
September 26, 2018
Siemens Industry, Inc. Page 3 of 6
Wiring
CAUTION:
Use care when removing the knockout.
Do not damage the circuit board.
Do not use autotransformers. Use earth ground
isolating step-down Class 2 transformers.
Determine supply transformer rating by summing total
VA of all actuators used. The maximum rating for a
Class 2 power supply circuit is 100 VA.
Actuator
Power
Consumption
Actuators per
Class 2 supply circuit*
(80% of transformer VA)
SKD62UA
17 VA
4
* Operating more actuators requires additional
transformers or separate 100 VA power supplies.
Wiring Diagrams
1
2
3
4
Figure 9. DIP Switches.
DIP Switches
(From Left to Right)
1
Select Direction
of Operation
2
Sequence Control
or
Stroke Limit Control
3
Selection of
Control
Signal
4
Selection of
Flow
Characteristic
ON
Reverse-acting
Sequence control
4 to 20 mA
Modified*
OFF
(Factory Settings)
Direct-acting
Stroke limit control
0 to 10 Vdc
Default
*Changing the default setting will modify an equal percentage valve to a linear flow characteristic. When set
to default, the flow characteristic is determined by the valve body.