enphase Communications Kit 2 INT Quick Install Manual page 2

2 Wiring the Communications Kit 2 INT
Strip the cable insulation as per the following image. Keep the
terminating resistor only on the devices that are on either end of the
control communication bus, and remove the resistor from all other
devices.
Not used
CTRL (G)
CTRL (H)
CTRL (L)
Cable shield
✓
NOTE: The tested and recommended control cable is not sold along
with this product. Scan for tested and recommended control cables.
Link: https:/ /link.enphase.com/control-cable-table-eu
✓
NOTE: Use a suitable wire stripper to strip the jacket of the control
communication 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
commissioning and operation failures.
The following table provides the mapping of the control communication signals to the terminal header positions on the control 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 a 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 the 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.
2
Drain wire
(braided)
CT R L SI GN A LS
CTRL LOW
CTRL HIGH
CTRL GROUND
Not used
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, Control (CTRL) wiring between system
components.
Comms-Kit-2-QIG-140-00503-01-EN-AU-2024-07-10
Screw terminal for control
cable (torque 0.2 N m)
Drain terminal
Drain wire
Cable shield