Figure 20. CAN and Pull-Chain wiring for parallel UPS with MOBs
Figure 21. CAN and Pull-Chain wiring for parallel UPS without MOBs
A External parallel connectors TB6–8 6 TB7:1: Earth
1 TB6:2: Pull chain
7 TB8:1: CAN Termination 2
2 TB6:1: Pull chain RTN
8 TB8:2: CAN Termination 1
3 TB7:4: CAN High
*) Terminate the first and last UPS
4 TB7:3: CAN Low
with a jumper.
5 TB7:2: CAN GND
**) Connect the shield on one end only.
Note: NC and NO designations on MOB AUX contacts are defined with the
breaker in the OFF (open) position. If the MOB contacts have pigtail leads,
use the same wire gauge to connect to the UPS and use the correct crimp
connections for the wire gauge. External CAN connections between the UPS
cabinets require shielded twisted pair wire. Use twisted pair wiring between
the UPS and MOB AUX contacts. Always confirm contact operation prior to
wiring.
Eaton 93PS UPS 8–40 kW
User's and installation guide
©
Eaton Corporation plc 2016. All rights reserved.
Revision: 003
Document ID: P-164000493
63 (104)