enphase IQ System Controller 3 INT User Manual

26
IQ System Controller 3 INT Quick Install Guide
• To ensure proper control (CTRL) cable connection between
IQ System Controller 3 INT and 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.
Section B - Wiring
CTRL HEADER NUMBERS CTRL SIGNALS ELECTRA WIRE DESIGNATION LAPP WIRE DESIGNATION
Screw terminal 1 CTRL L Twisted pair ONE – Black/Blue Twisted pair 1 – Black
Screw terminal 2 CTRL H Twisted pair ONE – White Twisted pair 1 – White
Screw terminal 3 CTRL G Twisted pair TWO – Black/Blue Twisted pair 2 – Black
Screw terminal 4 (DO NOT USE) NA Twisted pair TWO – White (trimmed) Twisted pair 2 – White (trimmed)
• Ensure that both ends of the CTRL cable twisted pair wires
are inserted into the header as shown above. Conrm this by
performing a continuity check between CTRL header screw
terminals on both ends of the CTRL cable section.
• Connect 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. Please follow guidance based on Control (CTRL) wiring
between system components section.
TIP: Before pulling the cable through the conduit perform continuity
checks and label each end of all the wires with small colored clips or
stickers (with the same numerals as on the headers). This will enable
easy identication of wires and avoid mis-wiring.
The table below provides mapping of the header numbers, control
communication signals and twisted pair wire designation for Electra
EAS7302PHV/EAS7502PHV and LAPP 1270802 cables:
Screw terminal for control
cable (Torque 0.2 N m)
Drain wire
Drain terminal
CTRL header
Twisted pair 1 – Black – CTRL (L)
Twisted pair 2 – Black – CTRL (G)
Twisted pair 1 – White – CTRL (H)
Twisted pair 2 – White – Trimmed
Twisted pair TWO – Black/Blue – CTRL (G)
Twisted pair ONE – Black/Blue – CTRL (L)
Twisted pair TWO – White – Trimmed
Twisted pair ONE – White – CTRL (H)
LAPP cable
Electra cable
1 1 2 2
O
N
E
T
W
O
O
N
E
T
W
O
NOTE: To avoid mis-wiring note the wire color as well as the
number on the wire cores. The gure alongside and the table
below show the mapping of terminals on the header to the
wire color and number on wire core.

enphase IQ System Controller 3 INT Specifications

General

Brand	enphase
Model	IQ System Controller 3 INT
Category	Controller
Language	English