User Manual
26
3.6.6 Open the lower door
CAUTION
1)
Do not open the chassis door on the top of the inverter.
2)
Before the inverter opens the door, it must be ensured that the AC and DC are powered off.
3)
Please keep the 6 screws on the chassis door. Do not leave unused screws inside the chassis.
Figure 3-11 Disassemble the lower door panel
3.6.7 Connect the AC output cable
Precautions
An independent three-phase circuit breaker is required outside the AC side of each inverter to
ensure reliable disconnection between the inverter and the power grid. And the circuit breaker
specifications meet the technical requirements.
It is forbidden to share one circuit breaker for multiple inverters
It is forbidden to connect the load between the inverter and the circuit breaker.
The user must prepare the OT terminal by himself, the model number is M8, and the
maximum cable is 95mm
2
.
Operations
1)
Crimp the OT terminal and wrap the crimp with a heat shrink tubing or insulating tape.
2)
Unscrew the locking cap on the “AC OUTPUT” waterproof lock on the bottom of the inverter.
3)
Pass the completed AC cable into the lock cap and the “AC OUTPUT” waterproof lock on the
bottom of the inverter.
4)
Connect the AC cable to the tightening torque of 8N*m on A, B, C, and N of the AC terminal
block.
5)
Lock the locking cap. Check for gaps in the waterproof lock. If there is a gap in the waterproof
lock, use a fireproof mud to block the gap.
N
C B A
Figure 3-12 AC terminal block connection
