Figure 29 Control Wiring For External Contacts - Mitsubishi Electric 1100B Series Owner Technical Manual

A) Output Contacts (for external alarm annunciation)
Output contacts consist of form "A" dry type contacts. The rated capacity of all output
contacts is NEC Class2 (30Vdc/1Adc). All dry contacts should be operated at their rated
values or lower. Figure 29 illustrates a typical installation. The external relay can also be a
lamp, LED, computer, etc.

Figure 29 Control Wiring for External Contacts

UPS Cabinet
Details of output alarm contacts: IOAU-12
Terminals 5 to 6 "Major fault (make)" contact
Activated when a major fault has occurred with the system.
Terminals 7 to 8 "Major fault (break)" contact
Activated when a major fault has occurred with the system.
!
NOTE: The UPS is equipped with a selectable output contact feature.
The above alarms are the default settings.
Contact MITSUBISHI ELECTRIC POWER PRODUCTS, INC for setup
information at 1-800-887-7830.
NOTE
B) Input Contacts (for remote access of UPS)
External contacts are provided by the user of the UPS system. The terminal voltage at the
UPS is 24Vdc. Provide external dry contacts accordingly.
CAUTION: Do not apply voltages to remote access input terminals.
CAUTION
1100B SERIES UPS
OWNERS / TECHNICAL MANUAL
Relay
Contact
Damage to the UPS may result.
MITSUBISHI ELECTRIC 1100B SERIES UPS
External to UPS
Cabinet
Relay
Terminal
Coil
Terminal
NEC Class 2
Power Source
User supplied
Page Number:
2-10