Installation Instructions

Installation Instructions
Document No. 129-540
May 9, 2019
SSD Series Electronic Valve Actuator
(For use with 1/2-Inch to 1-1/4-inch Pressure Independent Control Valves)
Item No: 129-540, Rev EA Page 1 of 6
Product Description
The SSD Actuator requires a 24 Volt power supply and
a 0 to 10 Vdc or floating control signal to control the
1/2-inch to 1-1/4-inch Siemens 599 Series Pressure
Independent Control Valves with a 1/10-inch (2.5 mm),
1/5-inch (5 mm), or 7/32-inch (5.5 mm) stroke.
Contents
SSD61U, SSD81U:
One actuator
One terminal plug
One terminal connector
SSD61.5U, SSD81.5U:
One actuator
Product Numbers
Product
Number
Description
Actuator
Code
SSD61U
0 to 10 Vdc control, NSR
231
SSD81U
Floating control, NSR
230
SSD61.5U
0 to 10Vdc control, SR
233
SSD81.5U
Floating control, SR
232
Warning/Caution Notations
Personal injury/loss of life
may occur if you do not follow
a procedure as specified.
Equipment damage may
occur if you do not follow a
procedure as specified.
Required Tools
3 mm hex key
Small flat-blade screwdriver
Small, Phillips screwdriver
Wire stripper
Expected Installation Time
20 minutes
Prerequisites
Figure 1. Acceptable Mounting Positions.
NOTE: Vertical mounting position recommended.
Figure 2. Acceptable Mounting Position with Valve.
NOTE: Vertical mounting is recommended.
WARNINGS:
If mounting the actuator to a valve
already in line, either close the shut-off
valves in the piping (upstream first,
then downstream), or switch off the
pump to allow the differential pressure
in the valve to drop.
Disconnect the controller power before
replacing the actuator. See Removing
an SSD61.5U/SSD81.5U Actuator
from a Valve.
CAUTION:
Before applying power, make certain a
valve is connected to the actuator.
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, disconnect the power.
Insert a 3mm hex key into the manual
override feature and retract the
actuator to the zero position. Verify the
actuator shaft is retracted completely.
See Figure 15.
Connect a valve to the actuator,
reapply the power, and the actuator
will return to normal operation.

Summary of content (6 pages)