Format: PDF (Printable Document)
File Language: English
File Pages: 128
File Size: 24.48 MB (Speed Download Link)
Brand: Kohler
Model: 20ROZJB, 20REOZJB, 230REOZJB, 20REOZJC, 250REOZJC, 80REOZJD, 275REOZJD Industrial Generator Sets
Book No: tp6146
Type of Document: Wiring Diagrams
$ 40
These Kohler industrial generator sets usually sit in plant rooms, hospitals, data centers, or outdoor enclosures, kicking in when the main power drops. This wiring-diagram manual is what I keep on hand when I’m chasing electrical faults or verifying a harness after repairs. If, for example, the set won’t transfer load and the control panel shows a vague fault, I use this to trace the control wiring from the controller through relays and sensors to see where the signal dies.
Applications & Use Cases
FAQ
Q: Can I use this on a tablet or phone at the set?
A: Yes, it’s handy on a tablet; you can zoom in on connector details while probing with a meter.
Q: Is it worth printing sections of this diagram?
A: I usually print the key sheets I need for a job, mark them up with notes, then keep them in a plastic sleeve near the generator.
Safety Note
Always de-energize and lock out the generator and any connected sources before probing or disconnecting wiring.
Generator Set
Model No.
Generator Set Spec No.
50 Hz
Generator Set Spec No.
60 Hz
Wiring Diagram
Version No.
20ROZJB GM19369-GA2 GM19369-GA1 1-1
20REOZJB GM19369-GA4 GM19369-GA3, 9 1-1
20REOZJC — GM57153-GA5 2
30REOZJB GM19369-GA6 GM19369-GA5, 10 1-1
30REOZJC — GM57153-GA6 2
40REOZJB GM19369-GA8 GM19369-GA7, 11 1-1
40REOZJC — GM57153-GA3 3
50REOZJB GM21199-GA2, 4 GM21199-GA1, 3, 15, 16 1-1
50REOZJC — GM57153-GA4 3
60REOZJB GM21199-GA6, 8 GM21199-GA13, 14, 17, 18 1-1
60REOZJC — GM57153-GA1, 2 3
80REOZJB GM21199-GA10, 12 GM21199-GA9, 11 1-1
80REOZJC — GM30990-GA1, 2 1-2 or 1-3
80REOZJD — GM51053-GA1, 2 4
100REOZJB GM21528-GA1, 2 GM21528-GA3, 4 1-1
100REOZJB GM31029-GA1, 2 GM31029-GA3, 4 1-1
100REOZJC — GM30990-GA3, 4 1-2 or 1-3
100REOZJD — GM51053-GA3, 4 4
125REOZJB GM21528-GA5, 6 GM21528-GA7, 8 1-1
125REOZJD — GM48076-GA1, 2 5-1 5-2, or 5-3
135REOZJC — GM31000-GA1, 2 1-2 or 1-3
150REOZJB GM20148-GA1, 2 GM20148-GA3, 4 1-1
150REOZJC — GM31000-GA3, 4 1-2
150REOZJD — GM48076-GA3, 4 5-1, 5-2, or 5-3
180REOZJB GM19534-GA1, 2 GM19534-GA3, 4 1-1
180REOZJC — GM31000-GA5, 6 1-2
180REOZJD — GM39060-GA4 6-1, 6-2, 6-3, or 6-4
200REOZJB GM19534-GA5 GM19534-GA6 7
200REOZJC — GM39060-GA1 8
200REOZJD — GM39060-GA3 9-1, 9-2, 9-3, or 9-4
230REOZJB GM19534-GA7, 9 GM19534-GA8, 10 7
230REOZJD — GM46340-GA1 9-1, 9-2, or 9-3
230REOZJD — GM46340-GA5 9-4
250REOZJC GM39050-GA3 — 7
250REOZJD — GM46340-GA2 9-1, 9-2, or 9-3
250REOZJD — GM46340-GA6 9-4
275REOZJD — GM46340-GA3 9-1, 9-2, or 9-3
275REOZJD — GM46340-GA7 9
Controller Description Version 1–1 Page Version 1-2 Page Version 1-3 Page
Decision-Maker 1 Controller
Point-to-Point Wiring Diagram
Sheet 1 GM19447A-E 68 GM32192A-C 78 GM32192A-C 78
Sheet 2 GM19447B-E 69 GM32192B-C 79 GM32192B-C 79
Wound Field (WF) Alternator GM35942-J 81 GM35942-J 81 —
Permanent Magnet (PM) Alternator GM35941-G 80 GM35941-G 80 GM35941-G 80
Schematic Diagram
Sheet 1 ADV-6621-E 17 ADV-6904-C 25 ADV-6904-C 25
Wound Field (WF) Alternator ADV-6956-E 27 ADV-6956-E 27 —
Permanent Magnet (PM) Alternator ADV-6955-C 26 ADV-6955-C 26 ADV-6955-C 26
Decision-Maker 3+ Controller
Point-to-Point Wiring Diagram
Sheet 1 GM19432A-G 66 GM32188A-E 76 GM50975A- 94
Sheet 2 GM19432B-G 67 GM32188B-E 77 GM50975B- 95
Wound Field (WF) Alternator GM35942-J 81 GM35942-J 81 —
Permanent Magnet (PM) Alternator GM35941-G 80 GM35941-G 80 GM35941-G 80
Schematic Diagram
Sheet 1 ADV-6619-E 16 ADV-6902-C 24 ADV-7300- 40
Wound Field (WF) Alternator ADV-6956-E 27 ADV-6956-E 27 —
Permanent Magnet (PM) Alternator ADV-6955-C 26 ADV-6955-C 26 ADV-6955-C 26
Accessory Connections
Accessories 328912A-H 124 328912A-H 124 328912A-H 124
Remote Annunciator Kit 328912B-H 125 328912B-H 125 328912B-H 125
Decision-Maker 550 Controller
Point-to-Point Wiring Diagram
Sheet 1 GM19530A-F 70 GM31918A-H 74 GM50977A- 96
Sheet 2 GM19530B-F 71 GM31918B-H 75 GM50977B- 97
Wound Field (WF) Alternator GM35944-C 83 GM35944-C 83 —
Permanent Magnet (PM) Alternator GM35943-C 82 GM35943-C 82 GM35943-C 82
Schematic Diagram
Sheet 1 ADV-6624A-E 18 ADV-6893A-H 22 ADV-7301A- 41
Sheet 2 ADV-6624B-E 19 ADV-6893B-H 23 ADV-7301B- 42
Wound Field (WF) Alternator ADV-6958-A 29 ADV-6958-A 29 —
Permanent Magnet (PM) Alternator ADV-6957-A 28 ADV-6957-A 28 ADV-6957-A 28
Accessory Connections
Accessories GM16088A-H 64 GM16088A-H 64 GM16088A-H 64
Remote Annunciator Kit GM16088B-H 65 GM16088B-H 65 GM16088B-H 65
Alternator Reconnections
PM and WF Alternator, 4-Lead ADV-5875A-M 13 ADV-5875A-M 13 ADV-5875A-M 13
20–180 kW PM Alternator and 20–60 kW WF
Alternator, 12-Lead
ADV-5875B-M 14 ADV-5875B-M 14 ADV-5875B-M 14
80–180 kW WF Alternator, 12-Lead ADV-5875C-M 15 ADV-5875C-M 15 —
Housing Electrical
1-Phase — ADV-7035A-A 31 ADV-7035A-A 31
3-Phase — ADV-7035B-A 32 ADV-7035B-A 32
Note: Version 1-2 uses John Deere JDEC controls.
Note: Version 1-3 applies to the removal of D1 diode from K11 relay.
6 Wiring Diagrams TP-6146 9/10
20/30REOZJC Wiring Diagrams Reference
Controller Description Version 2 Page
Decision-Maker 3+
Controller
Point-to-Point Wiring Diagram
Sheet 1 GM60085A–C 120
Sheet 2 GM60085B–C 121
PM Alternator GM35941-G 80
Schematic Diagram
Sheet 1 ADV-7448-B 61
PM Alternator ADV-6955-C 26
Accessory Connections
Accessories 328912A-H 124
Remote Annunciator Kit 328912B-H 125
Decision-Maker 550
Controller
Point-to-Point Wiring Diagram
Sheet 1 GM60084A-E 118
Sheet 2 GM60084B-E 119
PM Alternator GM35943-C 82
Schematic Diagram
Sheet 1 ADV-7447A-D 59
Sheet 2 ADV-7447B-D 60
PM Alternator ADV-6957-A 28
Accessory Connections
Accessories GM16088A-H 64
Remote Annunciator Kit GM16088B-H 65
Alternator Reconnections
PM and WF Alternator,
4-Lead
ADV-5875A-M 13
PM Alternator, 12-Lead ADV-5875B-M 14
Housing Electrical
1-Phase ADV-7035A-A 31
3-Phase ADV-7035B-A 32
40–60REOZJC
Wiring Diagrams Reference
Controller Description Version 3 Page
Decision-Maker 3+
Controller
Point-to-Point Wiring Diagram
Sheet 1 GM58941A-B 116
Sheet 2 GM58941B-B 117
PM Alternator GM35941-G 80
Schematic Diagram
Sheet 1 ADV-7426A- 57
Sheet 2 ADV-7426B- 58
PM Alternator ADV-6955-C 26
Accessory Connections
Accessories 328912A-H 124
Remote Annunciator Kit 328912B-H 125
Decision-Maker 550
Controller
Point-to-Point Wiring Diagram
Sheet 1 GM58940A-D 114
Sheet 2 GM58940B-D 115
PM Alternator GM35943-C 82
Schematic Diagram
Sheet 1 ADV-7425-B 56
PM Alternator ADV-6957-A 28
Accessory Connections
Accessories GM16088A-H 64
Remote Annunciator Kit GM16088B-H 65
Alternator Reconnections
PM and WF Alternator,
4-Lead
ADV-5875A-M 13
PM Alternator, 12-Lead ADV-5875B-M 14
Housing Electrical
1-Phase ADV-7035A-A 31
3-Phase ADV-7035B-A 32
Controller Description Version 4 Page
Decision-Maker 3+ Controller
Point-to-Point Wiring Diagram
Sheet 1 GM51497A-B 108
Sheet 2 GM51497B-B 109
Wound Field (WF) Alternator GM35942-J 81
Permanent Magnet (PM) Alternator GM35941-G 80
Schematic Diagram
Sheet 1 ADV-7327A-A 48
Sheet 2 ADV-7327B-A 49
Wound Field (WF) Alternator ADV-6956-E 27
Permanent Magnet (PM) Alternator ADV-6955-C 26
Accessory Connections
Accessories 328912A-H 124
Remote Annunciator Kit 328912B-H 125
Decision-Maker 550 Controller
Point-to-Point Wiring Diagram
Sheet 1 GM51483A-B 106
Sheet 2 GM51483B-B 107
Wound Field (WF) Alternator GM35944-C 83
Permanent Magnet (PM) Alternator GM35943-C 82
Schematic Diagram
Sheet 1 ADV-7328A-A 50
Sheet 2 ADV-7328B-A 51
Wound Field (WF() Alternator ADV-6958-A 29
Permanent Magnet (PM) Alternator ADV-6957-A 28
Accessory Connections
Accessories GM16088A-H 64
Remote Annunciator Kit GM16088B-H 65
Alternator Reconnections
PM and WF Alternator, 4-Lead ADV-5875A-M 13
PM Alternator, 12-Lead ADV-5875B-M 14
WF Alternator, 12-Lead ADV-5875C-M 15
Housing Electrical
1-Phase ADV-7035A-A 31
3-Phase ADV-7035B-A 32
8 Wiring Diagrams TP-6146 9/10
125/150REOZJD Wiring Diagrams Reference
Controller Description Version 5-1 Page Version 5-2 Page Version 5-3 Page
Decision-Maker 3+ Controller
Point-to-Point Wiring Diagram
Sheet 1 GM51762A-B 110 GM51762A-B 110 GM51762A-D 112
Sheet 2 GM51762B-B 111 GM51762B-B 111 GM51762B-D 113
Wound Field (WF) Alternator GM35942-J 81 GM35942-J 81 —
Permanent Magnet (PM) Alternator GM35941-G 80 GM35941-G 80 GM35941-G 80
Schematic Diagram
Sheet 1 ADV-7335A-A 52 ADV-7335A-C 54 ADV-7335A-C 54
Sheet 2 ADV-7335B-A 53 ADV-7335B-C 55 ADV-7335B-C 55
Wound Field (WF) Alternator ADV-6956-E 27 ADV-6956-E 27 —
Permanent Magnet (PM) Alternator ADV-6955-C 26 ADV-6955-C 26 ADV-6955-C 26
Accessory Connections
Accessories 328912A-H 124 328912A-H 124 328912A-H 124
Remote Annunciator Kit 328912B-H 125 328912B-H 125 328912B-H 125
Decision-Maker 550 Controller
Point-to-Point Wiring Diagram
Sheet 1 GM47240A-D 88 GM50995A-B 100 GM61519A-A 122
Sheet 2 GM47240B-D 89 GM50995B-B 101 GM61519B-A 123
Wound Field (WF) Alternator GM35944-C 83 GM35944-C 83 —
Permanent Magnet (PM) Alternator GM35943-C 82 GM35943-C 82 GM35943-C 82
Schematic Diagram
Sheet 1 ADV-7128A-C 34 ADV-7303A-B 44 ADV-7629A- 62
Sheet 2 ADV-7128B-C 35 ADV-7303B-B 45 ADV-7629B- 63
Wound Field (WF) Alternator ADV-6958-A 29 ADV-6958-A 29 —
Permanent Magnet (PM) Alternator ADV-6957-A 28 ADV-6957-A 28 ADV-6957-A 28
Accessory Connections
Accessories GM16088A-H 64 GM16088A-H 64 GM16088A-H 64
Remote Annunciator Kit GM16088B-H 65 GM16088B-H 65 GM16088B-H 65
Alternator Reconnections
PM and WF Alternator, 4-Lead ADV-5875A-M 13 ADV-5875A-M 13 ADV-5875A-M 13
PM Alternator, 12-Lead ADV-5875B-M 14 ADV-5875B-M 14 ADV-5875B-M 14
WF Alternator, 12-Lead ADV-5875C-M 15 ADV-5875C-M 15 —
Housing Electrical
1-Phase ADV-7035A-A 31 ADV-7035A-A 31 ADV-7035A-A 31
3-Phase ADV-7035B-A 32 ADV-7035B-A 32 ADV-7035B-A 32
