Rockwell-automation 1395 Digital DC Drive User Manual Page 28
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Publication 2361-5.01 July 1998
1-16 Product Overview
Snubbers
Snubbers (resistor/capacitor assemblies) are installed in parallel with
the SCRs, working with the cell reactors to provide adequate voltage
suppression when the SCRs switch off.
Armature-Pulse Transformer Boards
Armature-pulse transformer boards provide the appropriate gate
voltage and current to trigger an SCR. In addition, these boards
provide gate driver isolation from the control logic. Figure 1.11
shows an armature-pulse transformer board.
DC Contactor
The main DC contactor is used to break the DC current to the motor
armature. Coil voltage to the contactor is controlled by contacts from
the pilot relay.
Figure 1.11
Armature Bridge Hardware
J2
J1
Silicon-Controlled Rectifier
(SCR)
Anode
Cathode
Gate
Leads
Armature-Pulse Transformer
Board
Anode
Cathode
Gate
- Bulletin 1395 1
- Digital DC Drive 1
- Table of Contents 3
- Chapter 2 Your 1250A DC Drive 4
- Chapter 3 Your 1650A DC Drive 4
- Chapter 4 Your 3000A DC Drive 4
- Table of Contents toc–iii 5
- Contents of this Manual 9
- Local Product Support 12
- Technical Product Assistance 12
- Product Overview 13
- 1-2 Product Overview 14
- Figure 1.1 15
- Drive Components 15
- Control Boards 16
- Figure 1.2 16
- Main Control Board 17
- Adapter Boards 18
- Figure 1.4 19
- Power Stage Interface Board 20
- Unit Power Supply Board 21
- Feedback Board 22
- 24V DC Power Supply 22
- Gate Interface Board 23
- Incoming Power Components 24
- Product Overview 1-13 25
- Armature Power Components 26
- Figure 1.10 27
- Figure 1.11 28
- Armature Bridge Hardware 28
- Field Power Components 29
- Figure 1.13 30
- Your 1250A DC Drive 31
- Figure 2.1 32
- 1250A DC Drive Layout 32
- Figure 2.2 33
- Figure 2.3 34
- Your 1250A DC Drive 2-5 35
- Symbol Reference Chart 36
- Your 1250A DC Drive 2-7 37
- Drive Structure Figure 2.4 38
- Your 1650A DC Drive 39
- Figure 3.1 40
- 1650A DC Drive Layout 40
- Figure 3.2 41
- Figure 3.3 42
- Your 1650A DC Drive 3-5 43
- Your 1650A DC Drive 3-7 45
- Drive Structure Figure 3.4 46
- Your 3000A DC Drive 47
- Drive Layout Figure 4.1 48
- Figure 4.2 49
- Figure 4.3 50
- Your 3000A DC Drive 4-5 51
- Your 3000A DC Drive 4-7 53
- Drive Structure Figure 4.4 54
- Installing Your Drive 55
- Figure 5.1 56
- Installing Your Drive 5-3 57
- Your Drive 58
- Drive Grounding 59
- Power Wiring 59
- Field Transformer 60
- Table 5.F: Field Transformers 61
- Figure 5.4 62
- Field Transformer Enclosures 62
- Figure 5.5 65
- Armature Current Ratings 66
- Starting Up Your Drive 67
- AC Voltages 68
- Drive Specifications 69
- Figure 1 70
- Altitude Derating Chart 70
- Table B: Unit Specifications 70
- Drive Specifications A-3 71
- A-4 Drive Specifications 72
- Drive Specifications A-5 73
- A-6 Drive Specifications 74
- Figure 11 75
- Figure 12 76
- Figure 13 76
- Figure 14 77
- Figure 15 78
- Appendix 79
- 2361EA-SAB-68CM-14CN-14DAA-1B 80
- S A C 68 CM 81
- 2361 F A 81
- Footnotes 83
- Which Table Do I Use? 84
- Significance of Level Numbers 84
- 2361 -SP A 01 A 85
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