Figure 4-18 Control Wiring For Aux Input Contacts - Toshiba G9000 SERIES Installation And Operation Manual

A) Input Contacts (for remote access of UPS)
Input terminal provides four (N1 – N4) programmable contacts that can be set to any of the functions
in . External contacts are provided by the user of the UPS system. Terminal voltage at the UPS is 24VDC.
Provide external dry contact accordingly.
Inputs require a dry NO (Normally Open) contact to be wired on the corresponding terminals on TN1
of IOAU-09. Closing this contact activates the selected functionality set for that input. The Inputs
provide a signal or "wetting" voltage of 24VDC / 8.3 mA. See Figure 4-18.
PROHIBIT
Refer to Figure 4-18 for a typical wiring configuration. Although this Figure applies to the remote
start/stop terminals, the same wiring arrangement is used for emergency stop; power demand; and battery
temperature high.
UPS Cabinet
Relay Coil current : 8.3mA
NOTE: For multiple battery cabinets, the UVT signals must be connected in parallel with UPS TN1-1 &-2.
For multiple battery cabinets, the Auxiliary Switches must be wired in series with UPS TN1-3 & -4.
26 G9000 Enhanced Series UPS Installation and Operation Manual – 93823-004
Do not apply voltages to remote access input terminals.
Damage to UPS may result.
Relay
Coil
24 VDC

Figure 4-18 Control Wiring for Aux Input Contacts

External to UPS
Cabinet
Start
Signal
Common
Wire Size: #14AWG
2
(2 mm ) or less
Use Momentary Switches Only
User supplied
Start
Switch
0.5S- 4S
ON
OFF