PIM-00004
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[Operation Manual]
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DAIKIN INDUSTRIES, LTD.
When the pressure switch display hold setting [P03] is "2", the alarm is stored in the alarm record if the
pressure falls below the value of the pressure switch setting [P01].
* The alarm/warning output of the individual alarm output of Classification [3], and the relay output B
contact of the integrated alarm output vary depending on the warning output level setting [P07].
See "Attachment: Power-ON External I/O Signal Timing Chart".
Causes of alarms and measures to be taken
Classification
Description
Indication
Cause of alarm output
Measure to be taken
Output device error
E10
The self-holding function of the power device
is activated.
If the event is repeated when the power supply is
reclosed, contact DAIKIN.
Instantaneous overcurrent
E11
The current control section senses
instantaneous overcurrent.
If the event is repeated when the power supply is
reclosed, contact DAIKIN.
Overspeed
E12
The motor runs at a speed faster than the
allowable speed (including reverse rotation).
Make sure that no problems exist in the hydraulic
circuit, and contact DAIKIN.
Regenerative brake
overcurrent
E13
Overcurrent is sensed in the regenerative
brake circuit.
If the event is repeated when the power supply is
reclosed, contact DAIKIN.
Regenerative brake overload
E14
Motor regenerative current causes the alarm
to be outputted when regeneration
overloading occurs.
Check the regenerative load integration ratio with
the monitor mode set at [n08], and alleviate the
load condition of the process in which the
integration ratio increases.
Undervoltage
E15
The main circuit voltage drops below 190
VDC (134 VAC).
Check the power supply voltage.
If the event is repeated, contact DAIKIN.
Overvoltage
E16
The main circuit voltage increases beyond
400 VDC.
Check the power supply voltage.
If the event is repeated, contact DAIKIN.
Motor Electronic thermal
error
E17
Overloading is detected via the status of the
current output. (60 seconds at 110%)
The motor output is larger than the normal output.
If the event is repeated, contact DAIKIN.
Magnetic pole detection error
E18
Faulty detection of the initial position of the
motor
If the event is repeated, contact DAIKIN.
Encoder cable break
E20
Alarm outputted as a result of a break in the
encoder
Parts should be replaced; contact DAIKIN.
Motor cable break
E21
Alarm outputted as a result of a break in the
motor
If the event is repeated, contact DAIKIN.
Power supply open phase
E24
Alarm outputted as a result of an open phase
in the power supply
If the event is repeated, contact DAIKIN.
Pressure sensor error
E30
Alarm outputted as a result of an abnormal
feedback value from the pressure sensor
If the event is repeated, contact DAIKIN.
Motor start error
E31
Alarm outputted when the command differs
from the actual rotation in polarity
If the event is repeated, contact DAIKIN.
Motor thermistor cable break
E40
Alarm outputted when a break in the motor
thermistor is detected
Parts should be replaced; contact DAIKIN.
Motor temperature abnormal
rise
E41
The motor is forcefully stopped when the
temperature reaches the specified temperature
(85 C) under the L44 condition.
The event can be caused as a result of a decrease in
the heat radiation and cooling performance of the
motor. Carry out servicing.
Radiator fin thermistor cable
break
E42
Alarm outputted when a break in the fin
thermistor is detected
Parts should be replaced; contact DAIKIN.
Fin temperature abnormal rise
E43
The motor is forcefully stopped when the
temperature reaches the specified temperature
(80 C) under the L45 condition.
The event can be caused as a result of a decrease in
the heat radiation and cooling performance of the
controller. Carry out servicing.
Drying operation error
E64
Alarm outputted when an increase in the
rotational speed is not accompanied by an
increase in pressure
The event can be caused as a result of a closed stop
valve or a decrease in the oil in the tank. Open the
stop valve and check the oil quantity.
[1]
CPU runaway (watchdog)
E91 Alarm outputted when the CPU runs away
If the event is repeated, contact DAIKIN.