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MITSUBISHI
ELECTRIC
9700 SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
2-10
MITSUBISHI ELECTRIC 9700 SERIES UPS
A) Output Contacts(for external alarm annunciation)
Output contacts consist of form “A” dry type contacts. Rated value of all output
contacts is 120Vac/0.5Aac or 30Vdc/1Adc. Operate all dry contacts at their rated
values or lower. Figure 2.16 illustrates typical installation. The external relay can also
be a lamp, LED, computer, etc.
FIGURE 2.16 Control Wiring for External Contacts
Terminal
UPS Cabinet External to UPS
Cabine
t
Rela
y
Coil
Power
Source
Rela
y
Contac
t
Terminal
Details of output alarm contacts :
Terminals 22 to 21 "Load on Bypass" contact (OUT0)
Activated when the power is supplied from the static bypass input.
Terminals 24 to 26 "Load on Inverter" contact (OUT1)
Activated when the power is supplied by the inverter.
Terminals 25 to 26 "Battery Operation" contact (OUT2)
Activated when the battery is operating following an AC power failure.
Terminals 27 to 28 “Converter Operation” contact (OUT3)
Activated when the converter is operating.
Terminals 29 to 30 "UPS failure" contact
Activated when a major fault has occurred to the system.
Terminals 31 to 32 "UPS failure" contact
Activated when a major fault has occurred to the system.
Terminals 34 to 33 "Battery Low Voltage" contact (OUT4)
Activated when DC voltage dropped below discharge end during inverter
operation.
Terminals 35 to 34 "Overload" contact (OUT5)
Activated when an overload has occurred to the system.