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6-8 • E2 RX/BX/CX I&O Manual 026-1614 Rev 4 5-JAN-2013
The meter is housed in a plastic enclosure suitable for
installation on T35 DIN rail according to EN50022. The
Energy Meter can be mounted with any orientation over
the entire ambient temperature range, either on a DIN rail
or in a panel. The meter is not sensitive to CT orientation
to reduce installation errors.
6.3.5.2 Supported System Types
The Energy Meter Series has a number of different
possible system wiring configurations. To configure the
meter, set the System Type via the User Interface or Mod-
bus register 130 (if so equipped). The System Type tells
the m
eter which of its current and voltage inputs are valid,
which are to be ignored, and if neutral is connected. Set-
ting the correct System Type prevents unwanted
energy
accumulation on unused inputs, selects the formula to cal-
culate the Theoretical Maximum Sy
stem Power, and deter-
mines which phase loss algorithm is
to be used. The phase
loss algorithm is configured as a percent of the Line-to-
Line System Voltage (except when in System Type 10)
and also calculates the expected Line to Neutral voltages
for system types that have Neutral (12 & 40).
For more information about this application, see the
Ener
gy Meter manual (P/N 026-1726).
6.3.6 Modular Refrigerant Leak
Detection Sensor (MRLDS)
Figure 6-6 - MRLDS
The Modular Refrigerant Leak Detection Sensor
(MRLDS) continuously monitors for low levels of refrig-
erants most commonly used in commercial refrigeratio
n
systems.
The MRLDS communicates with the E2 controller via
MODB
US. The E2 will provides an interface while the
MRLDS will provide the leak monitoring functionality.
6.3.7 Copeland Discus with
CoreSense Protection
Figure 6-7 - Copeland Discus Compressor
The Discus application can monitor semi-hermetic
compressors using the MODBUS network on E2 versions
3.01 and above. The E2 monitors and records semi-her-
metic compressor information. The Discus application has
ext
ensive logging capabilities that record a compressor’s
Run History, Fault History, and Alarm Status.
The Copeland Discus is supported on E2 RX-300, CX-
40
0 and above.
6.3.8 Copeland CoreSense
Communications
Figure 6-8 - Copeland CoreSense Communications
CoreSense Communications is used on A/C scroll
compressors in the E2. The CoreSense Communications
application provides the user interface requirements for
configuration setup, status display, and alarm handling.
CoreSense monitors information on the compressor's
operation and sends it to the controller, and can also moni-
tor conditions inside the compressor to prevent compres-