Rockwell Automation 1403-DM_LM_MM Powermonitor II Instruction Sheet User Manual
Page 25
Installation
2-13
1403-IN001A-US-P
Figure 2.11 3-phase 3-wire Grounded L2(B) Phase Open
Delta Direct Connect with 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
LINE
L1
L3
Voltage
Inputs
Status
Inputs
Power
N/-
GRD
Display
Module
Fiber
Powermonitor II
Master Module
Current
Inputs
Analog
Input
Relay
Output
I1-
I2-
I3-
I4-
Fuse
Fuse
Customer Supplied CT Shorting
Switch or Test Block
Customer
Chassis
Ground
Load
L1
L2
L3
Line-to-Line Voltage must not exceed 347V
(otherwise, step down transformers are
required).
Distribution
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.
Voltage Mode = Open Delta