Watlow 97 series User Manual

WO97-XUMN Rev A Made in the U.S.A.
July 1997 $15.00
User’s Manual
User Levels:
• New User ....................................................... go to page 1.1
• Experienced User .......................................... go to page 2.1
• Expert User .................................................... go to page 2.1
Installers:
• Installation ...................................................... go to page 2.1
• Wiring .............................................................go to page 3.1
Watlow Controls
1241 Bundy Blvd., P.O. Box 5580, Winona, Minnesota USA 55987-5580, Phone: (507) 454-5300, Fax: (507) 452-4507
Registered Company
Winona, Minnesota USA
ISO 9001
Series 97

Watlow 97 series Specifications

General

Type	Temperature Controller
Control Algorithm	PID, On/Off
Input Type	Thermocouple, RTD, Process
Output Type	Relay
Display	LED
Power Supply	24 VAC/VDC, 100-240 VAC
Communication Protocol	RS-485
Enclosure Rating	NEMA 4X

Summary

Safety Information

Technical Assistance

Chapter Two Installation

Installing the Series 97 Controller

Procedure for installing the Series 97 controller into a panel cutout, including gasket seating and mounting.

Removing the Series 97 Controller

Chapter Three Wiring

Wiring the Series 97

Details on wiring options, input-to-output isolation, and modular design of the Series 97.

Power Wiring

Information on connecting the Series 97 controller to power sources, including voltage specifications.

Sensor Installation Guidelines

Input 1 Wiring

Specific wiring diagrams and instructions for Input 1, supporting Thermocouple and RTD sensors.

Input 2 Wiring

Wiring instructions for Input 2, covering Digital Event inputs like voltage and contact closure.

Output 1 Limit Output Wiring

Details on wiring Output 1 for limit control, including AC output specifications.

Output 2 Alarm Output Wiring

Wiring configurations for Output 2 as an alarm, covering AC outputs and switched DC.

Output 3 Alarm Wiring

Wiring instructions for Output 3 functioning as an alarm, detailing AC output configurations.

Output 4 Wiring

Wiring for Output 4, including AC outputs and communications/retransmit options.

Chapter Four Navigation and Software

Keys and Displays

Overview of the Series 97 controller's keys, displays, and indicator lights.

Navigating the Series 97

Instructions on how to navigate through different pages and menus on the Series 97 controller.

Software Map

Chapter Five Features

Calibration Offset

Sensor Selection

Range Low and Range High

Alarms

Details on configuring alarms, including set points, hysteresis, latching, and silencing.

Alarm Set Points

Alarm Hysteresis

Communications

Information on programming and monitoring the Series 97 via serial communications (EIA/TIA-485/232).

Chapter Six Parameters

Parameter Setup Order

Provides a recommended sequence for setting up controller parameters for optimal configuration.

Setup Page

Lists the 8 menus available within the Setup Page for configuring controller settings.

Input 1 Menu

Input 2 Menu

Output 1 Menu

Output 2 Menu

Output 3 Menu

Output 4 Menu

Input Calibration Menu

Procedures for calibrating thermocouple and RTD inputs.

Output Calibration Menu

Appendix

Troubleshooting Alarms and Errors

Lists common indications, their probable causes, and corrective actions for alarms and errors.

Modbus ™™ RTU

Explains the Modbus RTU protocol for communication and controlling the Series 97 controller.

Modbus Register Numbers

Calibrating the Series 97

Detailed procedures for calibrating various inputs and outputs of the Series 97 controller.

Specifications