Status inputs, 1pt and 1ct line-to-neutral, Status inputs (s1, s2) – Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit User Manual
Page 19
PowerMonitor 1000 Unit 19
Rockwell Automation Publication 1408-IN001E-EN-P - September 2013
1PT and 1CT Line-to-Neutral
Status Inputs
One or two dry (non-powered) contacts can be connected to the power monitor status inputs.
The power monitor 24V DC status input derives power from its internal power supply.
Connect status inputs by using shielded, twisted-pair cable with the shield connected to the
ground bus or other low-impedance earth ground at one end only. The diagram indicates typical
status input wiring.
Status Inputs (S1, S2)
V1
L1
L2
L3
V2
VN
V3
Load
Line
Connect to ground
ONLY if PT is used
Voltage Mode = 1PT1CT Line-to-neutral
PowerMonitor 1000
Fuses
(by user)
PT
(by user,
if used)
CT
(by user)
Shorting terminal
block (by user)
I1+
I2+
I1-
I2-
Ground
Contact 1
Contact 2
Ground
SCOM
S2
S1
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