Daikin Super Unit SUT00D8021-30, Operation Manual

Page: 80 / 95

PIM00424
13-2
Alarm
Code
Name Reason Countermeasure
Failure of the encoder
・
Replace the motor pump
Failure of the controller
・
Replace the controller
Failure of the encoder
・
Replace the motor pump
Failure of the controller
・
Replace the controller
E12 Overspeed
Motor rotation speed exceeded
120% of the maximum
rotational speed
Noise
・
Add a noise filter
Regenerative resistor is short
circuit
・
Replace the resistor
The resistance of the
regenerative resistor is too small
・
Check the resistance value of the
regenerative resistor
E13
Regenerative brake
overcurrent
Current exceeds the specified
value at the time of regeneration Motor regenerative energy is too
large
・
Enlarge the acceleration time and
deceleration time.
・
Lighten the load.
Power supply voltage is out of
the specification range
・
Check the power supply voltage
in monitor mode [n12: main
circuit voltage], and make it in
the required range
E14 Regenerative brake overload
Overload protection of
regenerative resistor is
activated.
During deceleration the braking
force is too large
・
Reduce the parameter value of "
P13 ~ P28: deceleration time
setting"
・
Reduce the value of "P05: Load
command rate at the time of
regeneration", "P06: Regenerative
load ratio command at the time of
deceleration"
The power supply voltage is low
・
Check the power supply voltage
in monitor mode [n12: main
circuit voltage], and make it in
the required range
Re-turn on the power when the
display is not completely
disappeared
・
Re-power when the display is
completely disappeared
E15 Undervoltage
Main circuit voltage becomes
less than DC190V
Failure of the controller
・
Replace the controller
Power supply voltage is high
・
Check the power supply voltage
in monitor mode [n12: main
circuit voltage], and make it in
the required range
Failure of the controller
・
Replace the controller
E16 Overvoltage
Main circuit voltage becomes
more than DC400V
Rapid deceleration in PQ
selection switching
・
Reduce the parameter value of "
P13 ~ P28: deceleration time
setting"
・
Reduce the value of "P05: Load
command rate at the time of
regeneration", "P06: Regenerative
load ratio command at the time of
deceleration"
Load torque is large
・
Replace the motor pump
Defects in motor control due to
the effect of noise
・
Replace the controller
E17
Motor electronic thermal
error
Overload protection is activated
by electronic thermal
Defects in motor control due to
the effect of noise
・
Add a noise filter