Modular UPS 25KVA~900KVA User Manual 29
Installation Instruction
The UPS accepts external signal from zero-voltage (dry) contacts connected through
external dry contact terminals produced and phoenix terminals. Through software
programming, these signals become active when these contacts connect to +24V to
ground).The cables connected to DRY terminal must be separated from power cables.
Moreover, these cables should be double insulated with a typical 0.5 to 1.5 mm2
cross-section area for a maximum connection length between 25 and 50 meters.
3.7.1 Dry Contact Interface
Dry contact interface includes port J2-J10 and the functions of the dry contact are
shown in Table 3.5.
Table 3.5 Functions of the port
Port
Name
Function
J2-1
TEMP_BAT
Detection of battery temperature
J2-2
TEMP_COM
Common terminal for temperature detection
J3-1
ENV_TEMP
Detection of environmental temperature
J3-2
TEMP_COM
Common terminal for temperature detection
J4-1
REMOTE_EPO_NC
Trigger EPO when disconnect with J4-2
J4-2
+24V_DRY
+24V
J4-3
+24V_DRY
+24V
J4-4
REMOTE_EPO_NO
Trigger EPO when shorted with J4-3
J5-1
+24V_DRY
+24V
J5-2
GEN_CONNECTED
Input dry contact , function is settable ,
Default: interface for generator
J5-3
GND_DRY
Ground for +24V
J6-1
BCB Drive
Output dry contact, function is settable.
Default: Battery trip signal
J6-2
BCB_Status
Input dry contact, function is settable.
Default: BCB Status and BCB Online, (Alert no
battery when BCB Status is invalid).
J7-1
GND_DRY
Ground for +24V
J7-2
BCB_Online
Input dry contact, function is settable.
Default: BCB Status and BCB Online (Alert no
battery when BCB Status is invalid).
J8-1
BAT_LOW_ALARM_NC
Output dry contact (Normally closed), function is
settable.
Default: Low battery alarming
J8-2
BAT_LOW_ALARM_NO
Output dry contact (Normally open), function is
settable.
Default: Low battery alarming
J8-3
BAT_LOW_ALARM_GND
Common terminal for J8-1 and J8-2
J9-1
GENERAL_ALARM_NC
Output dry contact, (Normally closed) function is
settable.
Default: Fault alarming
J9-2
GENERAL_ALARM_NO
Output dry contact, (Normally open) function is
settable.
