Johnson Controls M4-CG Series User Manual

3. Drill holes in the wall or surface at the marked
locations, and insert appropriate wall anchors in
the holes (if necessary).
4. Hold the controller in place, and insert the screws
through the mounting clips and into the holes (or
anchors). Carefully tighten all of the screws.
Important: Do not over-tighten the mounting
screws. Over-tightening the screws may
damage the mounting clips.
Wiring
Observe the following guidelines when wiring a CGM/CGE
controller:
CAUTION
Risk of Electric Shock:
Disconnect the power supply before making electrical
connections to avoid electric shock.
ATTENTION
Mise En Garde: Risque de décharge électrique:
Débrancher l'alimentation avant de réaliser tout
raccordement électrique afin d'éviter tout risque de
décharge électrique.
CAUTION
Risk of Property Damage:
Do not apply power to the system before checking
all wiring connections. Short circuited or improperly
connected wires may result in permanent damage to
the equipment.
ATTENTION
Mise En Garde: Risque de dégâts matériels:
Ne pas mettre le système sous tension avant
d'avoir vérifié tous les raccords de câblage. Des
fils formant un court-circuit ou connectés de façon
incorrecte risquent d'endommager irrémédiablement
l'équipement.
Important: Do not exceed the controller electrical
ratings. Exceeding controller electrical ratings can
result in permanent damage to the controller and
void any warranty.
Important: Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
Important: Electrostatic discharge can damage
controller components. Use proper electrostatic
discharge precautions during installation, setup, and
servicing to avoid damaging the controller.
For information on configuring and wiring a BACnet/
IP network, refer to the Metasys IP Networks for BACnet/
IP Controllers Technical Bulletin (LIT-12012458). For
detailed information about configuring and wiring
an MS/TP Bus, FC Bus, and SA Bus, refer to the MS/TP
Communications Bus Technical Bulletin (LIT-12011034). For
detailed information about wiring an N2 network, refer to
the N2 Communications Bus Technical Bulletin (LIT-636018).
Terminal blocks and bus ports
See Physical features for terminal block and bus port
locations on the CGM/CGE controller. Observe the
following guidelines when wiring a CGM/CGE controller.
Input and Output terminal blocks
CG series controllers have removable input and output
terminal blocks. All of the input terminal blocks are
located on the bottom of the controller, and the output
terminal blocks are located on the top of the controller.
For information about removing a terminal block, see
Removing a terminal block. For more information about
I/O terminal functions, requirements, and ratings,
see Terminal wiring guidelines, functions, ratings, and
requirements.
BACnet/IP Ethernet Network Topology for
CGE controllers
CGE controllers may be connected to a BACnet/IP building
automation network in multiple ways: as daisy-chained
devices, as part of a star (also called home run) type
network, or as part of a ring network.
To daisy-chain CGE controllers, connect the controllers
to the bus supervisor in a chain with the Ethernet cable
connecting to the CGE at the ETH-1 or ETH-2 port, and
connecting to the next device from the other port.
Benefits of daisy-chained networks are that they require
less physical wiring and new devices can be added easily
to the network.
In a star network, each CGE controller is connected
by Ethernet cable directly back to a main switch. This
configuration reduces the possibility of network failure
but requires more wiring to install.
A ring network is a chain of controllers virtually closed
by a software component in an Ethernet switch. Not
all switches support the ring topology. The dual-port
controller from Johnson Controls supports Media
Redundancy Protocol (MRP). With MRP, a ring of Ethernet
devices can overcome any single communication failure,
with a recovery time faster than a non-ring (daisy chain or
star) architecture.
M4-CG Series General Purpose Application Controller Installation Guide4

Johnson Controls M4-CG Series Specifications

General

Brand	Johnson Controls
Model	M4-CG Series
Category	Controller
Language	English