Johnson Controls EM-3000 Series Quick Start Manual

EM-3000 Series Meter Quickstart Guide
Front Cover
Support fitted
into its base
Wireless Ethernet Connection
Current
Electronic Circuits
Inputs
Ia Ia Ib Ib Ic Ic
(+) (-) (+) (-) (+) (-)
Va Vb Vc Vn L1 L2 PE
Voltage
Inputs
Access Holes for
Wiring
Select wiring diagram to meet your application. See User Manual for additional wiring diagrams.
A B C N
Ic
Ib
Ia
Ia Ia Ib Ib Ic Ic
(+) (-) (+) (-) (+) (-)
A B C N
IMPORTANT!
on the left. The front cover support fits into its base. Make sure
the support is up before closing the front cover.
Ethernet, RJ45
Jack
JP2
RS485 Output
(Do not put the
Voltage on these
terminals!)
Z K Y + - SH
RS485
KYZ Pulse
Output
Power Supply
Inputs (Inputs
are unipolar)
L2 is for Neutral
Electronic Circuits
Va Vb Vc Vref L1 L2 PE
Power Supply Inputs
L2 is for Neutral
WYE Direct, 3
Phase, 4 Wire
EM-3000 Series Meter Quickstart Guide
Code No. LIT-12011870
Issued October 25, 2013
WARNING!
During normal operation of the meter
dangerous voltages flow through many parts of the meter,
including Terminals and any connected CTs and PTs, all I/O
modules and their circuits. All Primary and Secondary
circuits can, at times, produce lethal voltages and
currents. Avoid contact with any current-carrying surfaces.
Before performing ANY work on the EM-3000 Series
meter, make sure the meter is powered down and
ALL circuits are de-energized.
All wiring is done with the cover open, as shown
Detail of JP2 Board and
LAN/485 Setting
A B C N
Ic
Ib
Ia
Ia Ia Ib Ib Ic Ic
(+) (-) (+) (-) (+) (-)
Va Vb Vc Vn L1 L2 PE
A B C N
NOTE: Jumper 2 (JP2)
must be set for either
RS485 or Ethernet commu-
nication (see figures on the
left for location of JP2 and
settings). Put the jumper
on positions 2 and 3 for
LAN (Ethernet) communi-
cation, or on 1 and 2 for
RS485 communication.
Electronic Circuits
Power Supply Inputs
WYE with PTs, 3
Phase, 4 Wire
QS - 1