Rockwell Automation Liqui-Flo Trane Addendum - Manual (Page 14)

2-4 Trane Liqui-Flo Addendum
The 12-pulse rectifier Trane cabinets have the following main components. The
identification numbers provided correspond to the numbers used in figure 2.3.
1. Cabinet
2. AC Input to Drive (from Secondary of Delta-Wye Transformer)
3. Control Panel Assembly
4. C-Frame Liqui-Flo Drive
5. Liqui-Flo Power Module Adapter Board - Provides the interface between the drive’s
electronics and power structure
6. Liqui-Flo Bus Control Board - Controls the drive’s power supplies and SCRs
7. Liqui-Flo Regulator Board - Controls overall drive operation
8. Super Remote Meter Interface (RMI) Board - Provides additional analog I/O (located
under the Regulator board)
9. Coolant Lines - (a) Outlet, (b) Inlet
10. Motor Connection Studs (6) P/O CTV
11. AC Output from Load Side of Circuit Breaker (located behind item 12)
12. AC Input Connections (to Line Side of Circuit Breaker)
13. Current Transformers (3) - Used by the Trane UCP2 Control Panel to monitor output
current
14. 1200 A Circuit Breaker
15. 4 KVA Transformer - Steps down the 480 VAC input voltage to 115 VAC
16. (3) Type RK-5 Fuses - Protect the primary of the 4 KVA transformer - (1 fuse: 2 amp)
(2 fuses: 15 amp)
17. (2) Type K5 Fuses - Protect the coolant pump’s reactor (1 fuse: 10 amp) and the Starter
module’s 115 VAC line (1 fuse: 30 amp)
18. Terminal Block - Provides termination points for cabinet I/O wiring
19. Potential Transformers (3) - Used by the Trane UCP2 Control Panel to measure the
480 VAC input voltage
20. Trane Starter Module - Interfaces the Liqui-Flo drive to the Trane UCP2 Control Panel
21. Relay 2K1 - Circulating coolant pump motor interposing relay
22. Relay 2K2 - Oil pump interposing relay
23. Relay 2K3 - Run/stop function interposing relay
24. 50 VA Transformer 460 VAC/ 115 VAC / 24 VAC - Supplies power to the Trane Starter
Module
25. Fan - Provides cooling for the DC bus reactor
26. Removable Plate - Provides chain hoist access
27. Surge Suppressor