Data Sheet for Product

Pressure Independent Control Technical Instructions
SSD Series Electronic Valve Actuators Document No. 155-773
May 8, 2019
Siemens Industry, Inc. Page 3
Accessories
Figure 1. Conduit Connector.
ASY97 Conduit connector (quantity one).
For SSD61U and SSD81U only.
Figure 2. Terminal Block Cover
and. Plug
Terminal block cover and terminal plug
(quantity: one each). For SSD61U and
SSD81U only.
• ASY99 SSD81U actuator
floating control.
• ASY100 SSD61U actuator
0 to 10 Vdc control.
ASY98 Replacement screw and nut for use on the conduit connector or the terminal
connector, quantity one each. For SSD61U and SSD81U only.
Warning/Caution Notations
WARNING:
Personal injury or loss of life may occur if
you do not perform a procedure as
specified.
CAUTION:
Equipment damage may occur if you do not
perform a procedure as specified.
Operation
CAUTION:
A valve must be connected to the actuator before applying power.
If applying power to the actuator when a valve is not connected, the
actuator will respond to a control signal and the shaft will extend until it
reaches its maximum end stop. Thereafter, it will not respond to any
signal. If this occurs:
1. Disconnect power.
2. Turn the manual position indicator (see Figure 7) on the top of the
actuator to the 0 position and verify the actuator shaft completely
retracts.
3. Connect a valve to the actuator.
4. Reapply power. The actuator will return to normal operation.