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Lake Shore Model 642 Electromagnet Power Supply User’s Manual
Service 7-13
7.10.4 Power Supply Connector
The Power Supply connector provides the means to connect a water control valve (24 VAC) and an associated water
flow switch (closed during flow) to protect the Model 642 from loss of water flow. Pins 1 & 2 must be closed for normal
operation. Pins 3 & 4 supply 24 VAC at 1 A for operation of a water control valve.
4
1
Pin Name
1 Flow Switch (Com)
2 Flow Switch
3 Power Supply Water Valve A
4 Power Supply Water Valve B
Figure 7-10. Power Supply Connector Details
7.10.5 RS-232C Serial Interface Connector
This connector provides one of two means of computer interface. Command descriptions are found in Section 5.
9
6
5
1
Model 642 Electromagnet Power Supply Typical Computers
DE-9P (DTE) DB-25P (DTE) DE-9P (DTE)
Pin Description Pin Description Pin Description
1 NC 2 TD (out) 1 DCD (in)
2 Receive Data (RD in) 3 RD (in) 2 RD (in)
3 Transmit Data (TD out) 4 RTS (out) 3 TD (out)
4 Data Terminal Ready (DTR out) 5 CTS (in) 4 DTR (out)
5 Chassis-common 6 DSR (in) 5 GND
6 Data Set Ready (DSR in) 7 GND 6 DSR (in)
7 Data Terminal Ready (DTR out) (tied to 4) 8 DCD (in) 7 RTS (out)
8 NC 20 DTR (out) 8 CTS (in)
9 NC 22 Ring in (in) 9 Ring in (in)
Figure 7-11. RS232C (DTE) Connector Details
- Model 642 1
- TABLE OF CONTENTS 5
- LIST OF ILLUSTRATIONS 9
- LIST OF TABLES 10
- CHAPTER 1 11
- INTRODUCTION 11
- 1-2 Introduction 12
- Introduction 1-3 13
- Description (Continued) 13
- 1.2 SPECIFICATIONS 13
- 1-4 Introduction 14
- Specifications (Continued) 14
- Introduction 1-5 15
- 1-6 Introduction 16
- Introduction 1-7 17
- 1.3 SAFETY SUMMARY 17
- 1-8 Introduction 18
- Safety Summary (Continued) 18
- Introduction 1-9 19
- 1.4 SAFETY SYMBOLS 19
- 1-10 Introduction 20
- CHAPTER 2 21
- MAGNET SYSTEM DESIGN 21
- INSTALLATION, AND OPERATION 21
- Magnet System Design 2-3 23
- 2-6 Magnet System Design 26
- Magnet System Design 2-7 27
- 2-8 Magnet System Design 28
- CHAPTER 3 29
- INSTALLATION 29
- 3-2 Installation 30
- 3.2 REAR PANEL DEFINITION 30
- TERMINAL SCREW 32
- WIRE FERRULE 32
- VOLTAGE SELECTOR CARD 32
- VOLTAGE INDICATOR KEY 32
- 3-6 Installation 34
- 3.3.6 Wiring Cover 34
- NO SWITCHES EMERGENCY STOP 35
- REMOTE ENABLE 35
- ALARM CONTACTS 35
- TO REMOTE ALARM CIRCUIT 35
- VALVE AND SWITCH 36
- SOLENOID VALVE 37
- WITH MOUNTING BRACKET 37
- ADJUSTABLE HOSE CLAMP 37
- REINFORCED HOSE 37
- 230 mm (9 in) LONG 37
- LUG COVER 38
- 3-12 Installation 40
- 3.12 DETACHABLE HANDLES 40
- 3.13 RACK MOUNTING 40
- CHAPTER 4 41
- OPERATION 41
- +70.0000 A +35.000 V 42
- Operation 4-3 43
- 4.4 KEYPAD DEFINITION 43
- 4-4 Operation 44
- 4.5 DISPLAY SETUP 44
- 4.6 SETTING OUTPUT CURRENT 44
- Operation 4-5 45
- 4.7 CURRENT RAMP RATE 45
- 4.8 RAMP SEGMENTS 45
- 4-6 Operation 46
- Ramp Segments (Continued) 46
- 4.9 PAUSE RAMP 46
- 4.10 ZERO OUTPUT 46
- Operation 4-7 47
- 4.11 MAXIMUM SETTING LIMITS 47
- 4-8 Operation 48
- 4.12 MAGNET WATER 48
- 4.13 INTERNAL WATER 48
- 4.14 ERROR STATUS DISPLAY 48
- Operation 4-9 49
- 4.16 LOCKING THE KEYPAD 49
- 4-10 Operation 50
- 4.17 COMPUTER INTERFACE 50
- CHAPTER 5 53
- COMPUTER INTERFACE OPERATION 53
- 5.1.2 Remote/Local Operation 54
- Message Strings (Continued) 56
- 5.1.4 Status System 56
- 5.1.4.1 Overview 56
- Register Method Example 59
- *ESE, *ESE? 60
- ERSTE, ERSTE? 62
- *SRE, *SRE? 64
- IBCONF.EXE.eps 71
- 5.1.5.3 Program Operation 72
- 5.1.6 Troubleshooting 72
- 5.2.1 Changing Baud Rate 73
- 5.2.2 Physical Connection 73
- 5.2.6 Message Flow Control 75
- 5.2.7.2 Program Operation 79
- 5.2.8 Troubleshooting 79
- 5.3 COMMAND SUMMARY 80
- CHAPTER 6 91
- OPTIONS AND ACCESSORIES 91
- 6-2 Options and Accessories 92
- CHAPTER 7 93
- SERVICE 93
- 7-2 Service 94
- 7.3 LINE VOLTAGE SELECTION 94
- 7-4 Service 96
- Figure 7-3. Circuit Breaker 96
- Service 7-5 97
- 7.6 ERROR MESSAGES 97
- 7-6 Service 98
- Table 7-3. Operational Errors 98
- 7.7 ELECTROSTATIC DISCHARGE 98
- 7-8 Service 100
- DIGITAL BOARD 101
- LOCATOR PINS 102
- MOUNTING SCREWS 102
- 7-12 Service 104
- 7.10.3 Auxiliary Connector 104
- Pin Name 104
- 7-14 Service 106
- Service 7-15 107
- Pin Symbol Description 107
- 7-16 Service 108
- 7.11 CALIBRATION 108
- 7.11.1 Calibration Interface 108
- 7-18 Service 110
- Service 7-19 111
- 7-20 Service 112
- Service 7-21 113
- 7-22 Service 114
- APPENDIX A 115
- GLOSSARY OF TERMINOLOGY 115
- – 1855) a German 117
- Factor Prefix Symbol 119
- APPENDIX B 121
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