iSC2F User’s Manual
UM-iSC2F-2-EN.docx
Pages 9 of 12
2.3
Power Supply Connections
The Phillips Screw Terminal Block, located on the bottom of the unit, has Phillips screws
with compression plates, allowing either bare wire connections or crimped terminal lugs.
The use of #6 size ring lugs is recommended to ensure secure and reliable connections
under severe shock or vibration. The terminal block comes with a safety cover which
must be removed before connecting any wires. This cover must be re-attached after
wiring to ensure personnel safety.
The iSC2F supports a single power supply (PWR1) with 4 options:
1.
LV: Dual Input 9-36VDC
2.
MV: Dual Input Supply 36-75VDC
3.
HV: Single universal Input 110-370VDC
4.
HV: Single universal Input 90-264VAC.
Terminal Block (for option 4)
Terminal
Number
Description
Connection
1
PWR1 (L) – Live
Connect to the (Live) of DC power supply 1 or (Live)
terminal of an AC power source.
2
PWR1 (G) – Ground
DC Power supply 1 ground connection or AC power
round connection.
3
PWR1 (N) – Neutral
Connect to the Neutral of the DC power supply 1 or
(Neutral) terminal of an AC power source.
4
G – Chassis Ground
Connected to the ground bus for DC inputs or Safety
Ground terminal for AC Units. Chassis Ground
connects to both power supply surge grounds via a
removable jumper.
Note:
Options 1,2, and 3 don’t include terminal blocks. The DV power connection should be done
based on the diagram of the supplied chassis.
Power Supply Connection
Chassis Ground Connection
The iSC2F chassis ground connection, located next to the terminal block, uses a #6-32
Screw. We recommend terminating the ground connection using a #6 ring lug, and a torque
setting of 15 in.lbs (1.7Nm).
100-240VAC rated equipment: A 250VAC appropriately rated circuit breaker must be
installed.
Equipment must be installed according to the applicable country wiring codes.
110-370VDC rated equipment: A 370VDC appropriately rated circuit breaker must be
installed.
A circuit breaker is not required for DC power supply voltages of 9-48VDC.
Equipment must be installed according to the applicable country wiring codes.
