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Note: The following settings must be performed after the initial functional test (Section 5.1)
4.4.2 Parameter settings
1. Turn on Inverter 1 and press standby key to enter standby mode.
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2. Press page key 5 seconds to enter communication ID setting.
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3. Press page key to change ID. Please set 32-40 for parallel used.
4. Press page key 5 seconds to enter operation mode setting.
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5. Press page key to set PARALLEL.
6. Press page key 5 seconds to enter standby mode.
7. Set other Inverter following steps 1-~6.
4.4.3 Parallel Operation:
1. Auto Master setting:
When only one inverter is powered on in a parallel system, it would show 'CAN BUS NO
RESPONSE' on LCD. When another inverter turns on, through normal CAN BUS operation, the
first inverter powered will be the master. If both inverters power at the same time, then the
inverter with the smaller ID will become the master. Because the system already has a master,
even if a third inverter ID is smaller than the master, it only could be a slave.
When the master fails or is off-line, the slave inverter with the smallest ID will become the master.
2. Average output load:
A Slave will switch from standby to output automatically based on average load on a parallel
system. When the total load is over 1760W, the inverter that is in standby mode with the smallest
ID will change to output mode. When the average load is under 800W, the inverter that is in
output mode with the biggest ID would change to standby mode.
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