Siemens SKD62UA User Manual

Installation Instructions
Document No. 129-369
October 16, 2002
SKD62UA Series Electronic Valve Actuator,
Advanced Features
Product Description
The SKD62UA electronic valve actuator requires a 24
Vac supply and receives a 0 to 10 Vdc or 4 to 20 mA
control signal to proportionally control a valve. These
actuators are designed to work with the Flowrite™
VF599 series valves, or other manufacturer's valves
with fitted with the appropriate Universal Valve Retrofit
Kit.
Product Numbers
SKD62UA
Warning/Caution Notations
WARNING:
Personal injury or loss of life
may occur if you do not follow a
procedure as specified.
CAUTION:
Equipment damage, or loss of
data may occur if you do not
follow a procedure as specified.
Required Tools
• 5 mm hex wrench
• Small and medium flat-blade screwdrivers
Expected Installation Time
20 minutes for factory installed actuator
45 minutes for field replacement of actuator
Prerequisites
WARNING:
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 and static
pressure in the valve to drop.
Mounting Positions
EA0921R1
Not allowed with the
Weather Shield
Not allowed in
any circumstance
Figure 1. Acceptable Mounting Positions.
Using the Weather Shield
The SKD62UA must be in the vertical position.
Complete instructions for the mounting of the weather
shield are included with that product.
NOTE: Use the top knockout position when installing
the Weather Shield. See Figure 13.
EA0857R1
VENTILATION
OPENINGS
VENTILATION
OPENINGS
Figure 2. Weather Shield Installation Position.
Item Code: 129-369, Rev. 011 Page 1 of 6

Siemens SKD62UA Specifications

General

Model	SKD62UA
Manufacturer	Siemens
Relay Outputs	2
Analog Outputs	2
Operating Voltage	24 V DC
Input Voltage	24 V DC
Digital Inputs	4

Summary

Product and Preparation Information

Product Description

Details the SKD62UA electronic valve actuator's power requirements and valve compatibility.

Warnings and Tools

Highlights safety warnings, required tools, and installation prerequisites for safe operation.

Installation Time

Specifies the estimated time for factory installation and field replacement of the actuator.

Mounting and Installation Guidance

Mounting Positions

Illustrates acceptable mounting orientations for the actuator, including restrictions.

Weather Shield Installation

Details the vertical mounting requirement for the weather shield and its installation position.

Installation Procedures

Removing the Actuator from the Valve

Step-by-step instructions for safely detaching the actuator from a valve.

Mounting an Actuator to a Valve

Guidance on attaching a new actuator to a valve, including packing element installation.

Wiring and Configuration

Wiring Diagrams and DIP Switches

Details actuator power consumption, transformer ratings, and DIP switch functions for configuration.

Terminal Connections and Calibration

Connecting Terminals

Explains the function of each terminal on the actuator, including input and output signals.

Start Up and Stroke Calibration

Covers initial startup checks and the automatic stroke calibration procedure with LED status indicators.

Valve Operation and Manual Control

Valve Stem Travel Indication

Illustrates actuator movement for normally closed, normally open, and three-way valves.

Manual Override Operation

Describes how to use the manual override feature and the stroke conversion per revolution.

Dimensions and Specifications

Technical Reference

Lists the document number for related technical instructions concerning the valve actuator.

Physical Dimensions

Provides detailed measurements of the actuator and weather shield in inches and millimeters.

Continued Dimensions and Service Envelope

Continued Dimensions

Presents additional dimensional views and information for the SKD62UA actuator.

Service Envelope

Specifies the recommended minimum access space required around the actuator for service.