Siemens SQM50.484R8A User Manual

SQM5…
Technical Instructions
Document No. 155-517P25
Jan 25, 2022
Reversing Actuators
Siemens Building Technologies, Inc.
Description
SQM5... reversing actuators are used for the positioning of flow control valves, butterfly
valves, dampers, or any application requiring rotary motion. The SQM5… actuators
accommodate control input signals of 4 to 20 mA, 0 to 135 , 0 to 10 Vdc, 0 to 20 mA,
position proportional and floating control. The available output signals include
4 to 20 mA, 0 to 135 , 0 to 10 Vdc, 0 to 20 mA, and 0 to 1000 . SQM5… actuators
are available with up to six internal, easily adjustable switches.
A selection of exchangeable circuit boards provide a variety of functions including
auto/manual selector switch, manual forward/reverse toggle switch, zero and span
adjustment, parallel or master/slave operation, split range control, input signal override,
and selectable electronic linearization.
The SQM5… is engineered for precision. It is particularly well suited for applications
requiring a high degree of modulating accuracy and repeatability.
The SQM5… actuator may be mounted in any position. A selection of mounting
brackets and shafts provides installation flexibility and allows for the simple replacement
of most competitive actuators.
Features
• Two limit switches, plus up to four internal auxiliary switches
• Fully closed “economy position” switch
• Drive shaft and cam drum disengagement clutches
• Auto/manual switch, manual control forward/reverse toggle switch
• UL, CSA approved 24 and 110 Vac versions
• CE approved 220 Vac versions
• Field reversible clockwise (cw) or counterclockwise (ccw) operation
• Various torque ratings and running times available
• Selection of field exchangeable single-ended and dual-ended shafts
• Mounting brackets to replace competitive actuators

Siemens SQM50.484R8A Specifications

General

Brand	Siemens
Model	SQM50.484R8A
Category	Controller
Language	English

Summary

Product Description

Product Description

Detailed explanation of SQM5 reversing actuators and their capabilities, including control signals.

Key Product Features

Highlights essential features like limit switches, economy position, and adjustable switches.

Application and Mounting

Application Areas

Describes suitability for industrial and commercial burner applications requiring precise control.

Mounting Flexibility

Discusses actuator mounting in any position with various brackets for installation ease.

Product Identification and Instructions

Product Number Identification Legend

Explains the coding system for identifying SQM5 actuator product numbers for ordering.

Shaft and Mounting Installation

Guides for shaft installation, actuator mounting, and rotational direction verification.

Switch, Shaft, and Cam Drum Adjustment

Instructions for adjusting internal switches, cam drum, shaft, and position dial.

Wiring and Grounding

Details on electrical connections, grounding, and conduit fittings for safe operation.

Wiring Connections by Circuit Board Type

AGA56.1... Circuit Boards Wiring

Wiring instructions and functional diagram for AGA56.1 circuit boards.

AGA56.41/42/43... Circuit Boards Wiring

Wiring instructions and diagrams for AGA56.41, 42, and 43 circuit boards.

AGA56.9... Circuit Boards Wiring

Wiring instructions for AGA56.9 circuit boards, covering manual and automatic operation.

Commissioning and Advanced Functions

Modulation, Zero, and Span Adjustment

Adjusting minimum (zero) and maximum (span) positions using trim potentiometers.

Electronic Linearization and Input Signal Override

Functions for flow linearization and overriding input signals.

Parallel, Master/Slave, and Split Ranging Operations

Configuration options for parallel, master/slave, and split ranging modes.

Model Specific Features and Service Guide

Features of Gx, Hx, Kx and Ax Actuator Series

Input/output signals and features for specific SQM5 actuator series.

Reversing Rotational Direction Procedure

Procedures for disconnecting wires and adjusting switches for rotation reversal.

Potentiometer Service and Circuit Board Installation

Reversing Rotational Direction on ASZ Potentiometer

Detailed steps for reversing direction on ASZ potentiometers, including gear models.

Preparation and AGA56.41/42/43 Installation

Safety and steps for installing AGA56.41/42/43 circuit boards.

AGA56.9A and AGA56.1A97 Circuit Board Installation

Installation of L-shaped AGA56.9A and AGA56.1A97 circuit boards with connections.

Potentiometer Removal and Installation

Procedures for removing and installing ASZ potentiometers.

Specifications

General Actuator Specifications

Overall specs: approvals, voltage, frequency, torque, operating range, switches, mounting.

Component Specifications

Specs for shaft, temperature, NEMA ratings, connections, weight, housing.

Circuit Board and Potentiometer Specifications

Specifications for various circuit boards (AGA56.x) and ASZ potentiometers.

Dimensions

Actuator Dimensions

Dimensional drawings for SQM5 actuators showing face and bottom mounting.

Mounting Bracket Dimensions

Dimensional drawings for AGA57.3 and AGA57.4 mounting brackets.

Shaft Dimensions

Drawings showing dimensions for various AGA58 shaft models.