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Eaton 93PM Integrated Accessory Cabinet-Tie (50 kW and 100 kW IAC-T) Installation and Operation Manual P-164000371—Rev 05
Table 19. IAC-T MOB and Pull Chain Interface Terminals (Continued)
IAC-T
Terminal
Name
UPS Terminal
Description
TB1-18
MOB 4 Aux #1
COM
UPS 4 Building Alarm Return
TB1-19
MOB 4 Aux #2 NO
UPS 4 Pull Chain – Terminal 1
Output: UPS 4 Pull Chain – Backup control for parallel
operation
TB1-20
Pull Chain Common
UPS 4 Pull Chain Return –
Terminal 2
Output: UPS 4 Pull Chain Common
NOTE
UPS building alarm signals are customer programmable. Customer interface wiring for the IAC-T MOBs assumes that the
UPS Building Alarm is programmed to monitor Normally Closed (NC) contacts.
Any pair of unused UPS building alarm terminals may be used for the MOB interface connections.
“Return“ indicates connection to electronics circuit ground. “Common” indicates connection to common side of isolated
relay contact
Table 20. IAC-T MOB, MBP, and Pull Chain Interface Terminals
IAC-T
Terminal
Name
UPS Terminal
Description
TB1-1
MOB 1 Aux #2
COM
—
Jumper terminal for MOB 1, MOB 2, MOB 3, and MOB4 Aux
2 common connections.
TB1-2
MOB 2 Aux #2
COM
—
TB1-3
MOB 3 Aux #2
COM
—
TB1-4
MOB 4 Aux #2
COM
—
TB1-5
MOB 1 Aux #1 NC
UPS 1 Building Alarm
Output: Normally Closed (NC) contact used to indicate
whether MOB 1 is open. Contacts are closed when MOB 1is
open.
TB1-6
MOB 1 Aux #1
COM
UPS 1 Building Alarm Return
TB1-7
MOB 1 Aux #2 NO
UPS 1 Pull Chain – Terminal
1
Output: UPS 1 Pull Chain – Backup control for parallel
operation
TB1-8
Pull Chain
Common
UPS 1 Pull Chain Return –
Terminal 2
Output: UPS 1 Pull Chain Common
TB1-9
MOB 2 Aux #1 NC
UPS 2 Building Alarm
Output: Normally Closed (NC) contact used to indicate
whether MOB 2 is open. Contacts are closed when MOB 2
is open.
TB1-10
MOB 2 Aux #1
COM
UPS 2 Building Alarm Return
TB1-11
MOB 2 Aux #2 NO
UPS 2 Pull Chain – Terminal
1
Output: UPS 2 Pull Chain – Backup control for parallel
operation
TB1-12
Pull Chain
Common
UPS 2 Pull Chain Return –
Terminal 2
Output: UPS 2Pull Chain Common
Summary of Contents for 93PM IAC-T Series
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