Figure 2.16 Control Wiring For External Contacts - Mitsubishi Electric 9800A Owner Technical Manual

MITSUBISHI
ELECTRIC OWNERS / TECHNICAL MANUAL
A) Output Contacts (for external alarm annunciation)
Output contacts consist of form "A" dry type contacts. Rated capacity of all output
contacts is NEC Class2 (30Vdc/1Adc). All dry contacts should be operated at their
rated values or lower. Figure 2.16 illustrates a typical installation. The external relay
can also be a lamp, LED, computer, etc.

FIGURE 2.16 Control Wiring for External Contacts

UPS Cabinet
Relay
Contact
Details of output alarm contacts : TN1
Terminals 1 to 2, 3 to 4 "UPS failure" contact
Activated when a major fault has occurred with the system.
Terminals 5 to 6, 7 to 8 "Load on Bypass" contact (OUT1)
Activated when the power is supplied from the static bypass input.
Terminals 9 to 10, 11 to 12 "Load on Inverter" contact (OUT2)
Activated when the power is supplied by the inverter.
Terminals 13 to 14, 15 to 16 "Battery Operation" contact (OUT3)
Activated when the battery is operating following an AC power failure.
Terminals 17 to 18, 19 to 20 "Rectifier Operation" contact (OUT4)
Activated when the rectifier is operating.
Terminals 21 to 22, 23 to 24 "Battery Low Voltage" contact (OUT5)
Activated when the battery voltage drops below discharge end voltage level
during inverter operation (i.e. During AC fail condition).
Terminals 25 to 26, 27 to 28 "Overload" contact (OUT6)
Activated when an overload has occurred to the system.
Terminals 29 through 36 "Spare" contact (OUT7 and OUT8)
Terminals 37 to 38, 39 to 40 "Total Alarm" contact (OUT9)
Activated when an alarm has output to the system.
MITSUBISHI ELECTRIC 9800A SERIES UPS
9800A SERIES UPS
Terminal
Terminal
Page Number:
2-10
External to UPS
Cabinet
Relay
Coil
NEC Class 2
Power Source
User supplied