AEC IST5015 - Page 26

Installation Instruction
22 IST5 Tower UPS 10kVA~40kVA User Manual
Port
Name
Function
J6-1
BCB_DRIV
BCB contact drive, provides +24V voltage
，
20mA
drive signal
J6-2
BCB_Status
BCB contact status, connect with the normally open
signal of BCB
J7-1
GND_DRY
Power ground for +24V
J7-2
BCB_Online
BCB on-line input (normally open) , BCB is on-line
when the signal is connecting with J7-1
Battery Warning Output Dry Contact Interface
The default function of J8 is the output dry contact interface, which presents the battery
warnings of low or excessive voltage, when the battery voltage is lower than set value,
an auxiliary dry contact signal will be activated via the isolation of a relay. The interface
diagram is shown in Fig.3-17, and description is shown in Table 3.10.
Fig.3-18 Battery warning dry contact interface diagram
Table3.10 Battery warning dry contact interface description
Port
Name
Function
J8-1
BAT_LOW_ALARM_NC
Battery warning relay (normally closed) will be
open during warning
J8-2
BAT_LOW_ALARM_NO
Battery warning relay (normally open) will be
closed during warning
J8-3
BAT_LOW_ALARM_GND
Common terminal
General Alarm Output Dry Contact Interface
The default function of J9 is the general alarm output dry contact interface. When one
or more warnings are triggered, an auxiliary dry contact signal will be active via the
isolation of a relay. The interface diagram is shown in Fig.3-19, and description is
shown in Table 3.11.
J8
BAT_LOW_NC
BAT_LOW_N
O
GND