page 30 / 85 0MLMHTM16RUENUB
NOTE:
Aux signals isolation board allows receiving external auxiliary contacts and keeping them isolated
from the UPS internal circuits making easy connections in case of paralleling of the units.
Jumpers AUX (SWBATT, SWMB, SWOUT) must be connected to the terminal of the board if no external auxiliary
contacts are presents.
Connector J1 of Aux signals isolation board
PIN
NAME
TYPE
FUNCTION
1
AUX SWBATT
INPUT
Normally open: contact used to indicate when
SWBATT is closed
2
AUX SWBATT RETURN
INPUT
3
AUX SWMB
INPUT
Normally close: contact used to indicate when the
SWMB EXT is closed
4
AUX SWMB RETURN
INPUT
5
AUX SWOUT
INPUT
Normally open: contact used to indicate when the
SWOUT EXT is closed
6
AUX SWOUT RETURN
INPUT
7
BAT. TEMP. SENSOR
INPUT
temperature ambient from battery cabinet
8
BAT. TEMP. SENSOR
INPUT
9
GROUND
INPUT
Cable shield to ground
Terminal block
PIN
NAME
TYPE
FUNCTION
1
SWBATT coil
OUTPUT
Normally Open dry contact: used in a circuit at
24Vdc for supply SWBATT coil.
2
SWBATT coil
OUTPUT
Torque specifications for connector J1 on aux signals isolation board
AWG Wire size
range
Torque Load
#30 -12AWG
0.37 – 0.44 lbf-ft
0.5 – 0.6 Nm
Torque specifications for terminal blocks on customer interface board
AWG Wire size
range
Torque Load
#22 -12AWG
4.4 lbf-ft
6 Nm
