Frecon PV Series - Err26 With-wave current limit fault; Err27 Soft-start relay unclosed; Err28 EEPROM Version Incompatible; Err29 Hardware detect Overcurrent

PV series Solar Pumping Inverter
- 49 -
F11.22、F11.23 conform
to the actual running
conditions.
Err26
With-wave
current limit fault
1、Load is too large or motor
rocked-rotor
2、Inverter selection is too
small
1、Reduce the load or
check the conditions of
motor or mechanical
2、Select the inverter with
larger power
Err27
Soft-start relay
unclosed
1、 1、Grid voltage is too low
2、 2、Rectifier module failure
1、 1、Check the grid voltage
2、 2、Ask for technical support
Err28
EEPROM
Version
Incompatible
1、Parameter version of
up/download module is
inconsistent with the one of
control panel
1、Re-upload parameters to
up/download modules
Err29
Hardware detect
Overcurrent
1、Acceleration/Deceleration
time is too short
2、Motor Parameters is
Inaccurate
3、Hardware failure of
Inverter
1、Prolong the
acceleration/deceleration
time
2、Setting the correct motor
parameter
3、Ask for technical support
Err30
Hardware detect
overvoltage
1、Deceleration time is too
short
2、No installation of braking
resistors
3、Hardware failure of
Inverter
1、Prolong the deceleration
time
2、Install the braking
resistor
3、Ask for technical support
Err32
Hydraulic Probe
Failure
Hydraulic Probe Failure
Hydraulic Probe Changed
Arn33
Pre-warning of
Weak Light
Output frequency lower than or
equal with lower limit of PI
output frequency, and
continues this status until
arrives at delay time of weak
light.
Check the lower limit of PI
output frequency
and weak-light delay
the set value
Arn34
Pre-warning of
Full-water
Water-lever feedback lower
than the set threshold, and
continue to the delay time
Check the pre-warning
point of water level