Dc Cable Connection; Installing The Pv Connectors - CanadianSolar CSI-75K-T40001-E User Manual

5 Electrical Connection
DC SWITCH-1
PV-1 PV-2 PV-3 PV-4
MPPT-1 MPPT-2

5.8.3 DC cable connection

CSI Solar provides corresponding plug connectors in the scope of delivery for quick connection of PV inputs.
DC cables should be connected to the inverter via PV connectors which are included in the scope of delivery.
7 Check the positive and negative polarity of the PV strings, and connect the PV connectors to
corresponding terminals only after ensuring polarity correctness.
正极端子
NOTICE
Arc or contactor over temperature may occur if the PV connectors are not firmly in place, and
CSI Solar shall not be held liable for any damage caused.
Step 1: Strip the insulation from each DC cable by 7mm.
Step 2: Assemble the cable ends with the crimping pliers
负极端子
光伏电缆
Step 3: Lead the cable through cable gland, and insert into the insulator until it snaps into place.
Gently pull the cable backward to ensure firm connection. Tighten the cable gland and
the insulator (torque 2.5 N.m to 3 N.m).
Step 4: Check for polarity correctness.
The inverter will not function properly if any PV polarity is reversed.
7
Positive
Crimp
Contact
Negative
PV Cable
Crimp
Contact

5.8.4 Installing the PV Connectors.

step 1: Rotate all the DC switches to "OFF" position.
step 2: Check the cable connection of the PV string for polarity correctness and ensure that the open circuit voltage in
any case does not exceed the inverter input limit of 1,100V.
step 3: Connect the PV connectors to corresponding terminals until there is an audible click.
step 4: Follow the foregoing steps to connect PV connectors of other PV strings.
step 5: Seal the unused PV terminals with the terminal caps.
OFF
ON
PV-5 PV-6 PV-7
MPPT-3 MPPT-4
FIG 5-27 DC input terminal of inverter
压接好的端子
锁紧螺母
锁紧螺母
Seal Ring
Crimped Contact
Press nut
Press nut
FIG 5-28 DC cable connection
DC SWITCH-2
OFF
ON
PV-8 PV-9 PV-10 PV-11
MPPT-5 MPPT-6
正极外壳
密封圈
负极外壳
密封圈
压接好的端子
Positive Housing
Negative
Housing
Seal Ring
Crimped Contact
PV-12 PV-13 PV-14 PV-15
MPPT-7 MPPT-8
专用扳手(x2)
固定不动
顺时针转动
Special Wrench(x2)
Fixed
Clockwise Rotation
DC SWITCH-3
OFF
ON
PV-16 PV-17 PV-18
MPPT-9
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