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Watlow QPAC Modular SCR Power Control Service manuals

Owner’s manuals and user’s guides for Sensors Watlow QPAC Modular SCR Power Control Service.
We providing 1 pdf manuals Watlow QPAC Modular SCR Power Control Service for download free by document types: User Manual


Watlow QPAC Modular SCR Power Control Service User Manual (43 pages)


Brand: Watlow | Category: Sensors | Size: 18.70 MB |

 

Table of contents

Modular SCR

1

Power Control

1

Service Manual

1

Use The Manual

2

Table of Contents

3

Chapter 1

4

Overview

5

Specifications

6

Chapter 2

8

Preventive Maintenance

8

Chapter 3

9

Operation Theory of

9

Base and Firing Cards

9

Three Phase, Two Leg - Q32

10

Power Base Operation

10

Three Phase, Three Leg - Q33

11

Q33 Block

12

Zero Cross Control Cards

13

(work on all bases)

13

14 WATLOW QPAC Service Manual

14

Chapter 4

15

Test Procedures

15

Bias & Gain

16

Chapter 5

17

Troubleshooting

17

18 WATLOW QPAC Service Manual

18

Problem: No Heat

18

WATLOW QPAC Service Manual 19

19

Troubleshooting, Chapter 5

19

Problem: Partial Heat

20

22 WATLOW QPAC Service Manual

22

24 WATLOW QPAC Service Manual

24

WATLOW QPAC Service Manual 25

25

Bench Testing

27

Testing SCRs in the Unit

28

Installing an SCR Package

28

WATLOW QPAC Service Manual 29

29

30 WATLOW QPAC Service Manual

30

Appendix

31

Watlow QPAC Service Manual

43




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