enphase COMMS-KIT-INT-02 Quick Install Manual page 2

2 Wiring the Communications Kit 2 INT
Strip the cable insulation as per the following image. Keep the termi-
nating resistor only on the devices that are on either end of the control
communication bus, and remove the resistor from all other devices.
Drain wire
(braided)
Cable shield
70 mm
The tested and supported control cable make and model is
Belcom (manufacturer part number 4302P2254).
✓
NOTE: Use a wire stripper to strip the jacket of the control communi-
cation cable.
• To ensure proper control (CTRL) cable connection with IQ Batteries,
follow the guidelines outlined below while connecting the cable to
the headers.
WARNING! Failure to follow wiring guidance will result in the
system being unable to detect devices, leading to commis-
sioning and operation failures.
The following table provides the mapping of the control communication signals to the wire colors for the recommended Belcom cables:
CT R L H E A DE R NU M BE RS
Screw terminal 1
Screw terminal 2
Screw terminal 3
Screw terminal 4
Control (CTRL) wiring between system components
3
Control wiring guidance for installing IQ Battery 5P(s) with a Communications Kit 2 INT:
Refer to the following wiring sequences to understand the position of the header with termination resistor, wiring order, and drain wire termination location.
✓
NOTE: The total length of CTRL wiring across the system should not exceed 100 meters to ensure the system operates as per specifications.
✓
NOTE: Ensure the following guidelines are followed to avoid failures during system commissioning:
• One header with termination resistor should be installed on the component located at each end of the control network.
• The drain wire should only be terminated on one end of control wiring between system components.
• It is recommended that the drain wire be terminated at the component from which the control wiring for the section is initiated.
CTRL (L)
CTRL (H)
NA
CTRL (G)
8 mm
120 mm
CT R L SI GN A LS
CTRL L
CTRL H
CTRL G
NA
CTRL header
• Ensure that both ends of the CTRL cable twisted pair conductors are
inserted into the header, as shown above.
• Connect the drain wire to the drain terminal only at one end of a
CTRL cable. Do not connect drain wires at both ends of a CTRL cable.
Follow the guidance based on section 3,
system components.
WI R E D ES I GN AT I O N
White with blue stripe
Blue with white stripe
White with orange stripe
Orange with white stripe
Screw terminal for control
cable (torque 0.2 N m)
Drain terminal
Drain wire
Cable shield
Control (CTRL) wiring between