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System
E.SC
abnormal
E.oH1
VFD over-heat
Rectifier
E.oH2
over-heat
Motor static
E.TE1
detection fault
Motor rotation
E.TE2
detection fault
E.EEP
Memory fault
LiFE
Reserved
●Deceleration is too short
●Short circuit of solar drive
output or phase output short
circuit to ground
●Module damage
●EMC interface
●Temperature is too high
●Air channel is blocked
●Fan connection parts is
loose
●Fan is damaged
●Temperature detection
circuit fault
●Temperature is too high
●Air channel is blocked
●Fan connection parts is
loose
●Fan is damaged
●Temperature detection
circuit fault
●Detection overtime
●Start static detection while
motor is running
●Capacitance difference is
too big between motor and
VFD
●Motor parameter setting
mistake
●Detect while motor is
running
●Detect with load
●Detection overtime
●Capacitance difference is
too big between motor and
VFD
●Motor parameter setting
mistake
●Electromagnetic disturb in
memory period
●EEPROM damage
21
SI23 Solar Pump VFD Manual
●Prolong acceleration time
●To check peripheral equipment
●Ask to support
●Check the wiring layout, cable
ground
●Make the environment meet the
requirement
●Clear the air channel
●Check and reconnect the wire
●Change the same new fan
●Seek support from factory
●Make the environment meeting the
requirement
●Clear the air channel
●Check and reconnect the wire
●Change the same new fan
●Seek support from factory
●Check motor connection wire
●Detect after motor stopping totally
●Change VFD model
●Reset parameter according to
nameplate
●Detect after motor stop totally
●Re-detect without load
●Check motor connection wire
●Change VFD model
●Reset parameter according to
nameplate
●Resume load and save
●Seek support from factory
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