Rockwell Automation 1403-DM_LM_MM Powermonitor II Instruction Sheet User Manual
Page 23
Installation
2-11
1403-IN001A-US-P
Figure 2.9 3-phase 3-wire Open Delta with Two PTs and
Three CTs Wiring Diagram
V1
V2
V3
N
Fiber
Rx
Fiber
Tx
I1+
I2+
I3+
I4+
S1
S2
S3
S4
Scom
L/+
R14
R11
R12
R24
R21
R22
Acom
Ain
Voltage Mode = Open Delta
LINE
L1
L2
L3
Fuse
Fuse
Voltage
Inputs
Status
Inputs
Power
GRD
Display
Module
Fiber
Powermonitor II
Master Module
Customer Supplied CT Shorting
Switch or Test Block
Analog
Input
Current
Inputs
Relay
Output
Customer
Chassis
Ground
Note:
•
Careful attention must be paid to correct phasing and polarity for
proper operation.
•
All ground wires should be taken individually to Customer
Chassis Ground for a single point of grounding.
•
The Two CT wiring diagrams in Figure 2.10 may be used for any
of the delta or open delta wiring or voltage modes shown. Whether
there are two or three CTs in a circuit does NOT affect the voltage
wiring or mode selection.
N/-
I1-
I2-
I3-
I4-
Load
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