SG100KU Installation Manual
6
The inverter must be started up manually through LCD control menu if users want to
recover the operation after the button is punched.
1.4 Grid (AC) Main Switch
The grid main switch is one of the primary disconnects for the inverter. The inverter's
doors cannot be opened until the switch of the grid main switch is in the OFF position.
When the AC main switch is in the OFF position, all AC power is disconnected (not
live), except the following areas:
z
The input side of the AC circuit breaker (the utility grid)
z
The DC input terminals (if the PV array is connected and energized)
To operate the inverter the AC circuit breaker switch must be in the ON position.
1.5 DC Main Switch
The DC main switch is also the primary disconnect for the inverter. The inverter's
doors cannot be opened until the switch of the DC circuit is in the OFF position.
When the DC main switch is in the OFF position, all DC power is disconnected (not
live), except the following areas:
z
The input side of the AC main switch (the utility grid)
z
The DC input terminals (if the PV array is connected and energized)
To operate the inverter the DC circuit breaker switch must be in the ON position.
1.6 Open the Door of SG100KU
Use the following procedure to shut down the SG100KU inverter before servicing:
1. Stop the inverter from the LCD control menu.
2. Switch off the AC main switch (turn the switch to OFF position)
3. Switch off the DC main switch (turn the switch to OFF position).
4. Press in the handle to make it pop out from the lock hole, turn it right.
5. Now you can open the front door.
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