iES20G/iES18G
Series User’s Manual
iS5 Communications Inc.
16
2.
MV: Dual Input 36-75VDC
Terminal
Number
Description
Connection
1
PWR1 (+): Positive
Connected to the positive of the 1
st
36-75VDC
power source.
2
PWR1
: Ground
Power supply 1 ground connection.
3
PWR1 (-) : Negative
Connected to the negative of the 1
st
36-75VDC
power source.
4
: Chassis Ground
Connected to the safety ground terminal for AC
Units or the ground bus for DC inputs. Chassis
ground connects to both power supply surge
grounds via a removable jumper.
5
PWR2 (+) : Positive
Connected to the positive terminal of the 2
nd
36-75VDC power source.
6
PWR2
: Ground
Power supply 2 ground connection.
7
PWR2 (-) : Negative
Connected to the negative terminal of the 2
nd
36-75VDC power source.
8
RLY NO
Failsafe relay, normally open contact.
9
RLY CM
Failsafe relay, common contact.
10
N/C
No connection
3.
HV: Single Input 85-264VAC or 88-370VDC with a Single 10-48VDC
Backup
Terminal
Number
Description
Connection
1
PWR1 (+/L) – Line or
Positive
Connected to the line terminal of the 85-264VAC
power source or the positive terminal of the
88-370VDC power source.
2
PWR1
– Ground
Power supply 1 ground connection.
3
PWR1 (-/N) – Neutral or
Negative
Connected to the neutral terminal of the
85-264VAC power source or the negative terminal
of the 88-370VDC power source.