External Aux Contact Input And Output Terminal Blocks; Aux Contacts - Input; Figure 4-16 Control Wiring For Aux Input Contacts - Toshiba G9000 SERIES Installation And Operation Manual

4.4 External Aux Contact Input and Output Terminal Blocks

The UPS is equipped with a series of input/output terminals for external annunciation of alarms
and for remote access of certain UPS functions. The layout of terminals is shown in Figure 4-17
and Figure 4-19 with a functional description of the input/output port presented. OUT1 to OUT8
are user programmable, but have factory default settings as shown in Table 4–2.
The option to add another external I/F PCB "IOAU-19" is available, doubling signal outputs for
OUT1 to OUT8.
4.4.1

Aux Contacts - Input

The Input terminal provides four (IN1 thru IN4) programmable contacts that can be set to any
of the functions in these contacts can be programmed to provide any of the functions shown
in Table 4–1. The default programmed values are indicated with an asterisk (*).
PROHIBIT
Inputs require a dry NO (Normally Open) contact to be wired on the corresponding terminals
on TN11-14 of IOAU-19. 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
4-16. The function takes effect immediately upon contact closure, and is removed
immediately upon opening. Note: 0.5-4s momentary switch is recommended below to avoid
possible tripping of Alarm UA822.
External block IOAU-19
UPS Cabinet
24VDC
Relay Coil current: 8.3mA

Figure 4-16 Control Wiring for Aux Input Contacts

28
Do not apply voltages to remote access input terminals.
Damage to UPS may result.
Relay Signal
Coil
Common
Wire Size: #14AWG
(2 mm
User supplied
G9000 1000-2000kVA Installation and Operation Manual 91469-007
External to
UPS Cabinet
Switch
0.5s – 4s
ON
2
) or less
OFF
Use Momentary
Switches only