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H13
Restart Mode after Momentary Power Failure (Restart time)
F14 (Restart Mode after Momentary Power Failure, Mode selection)
H14
Restart Mode after Momentary Power Failure (Frequency fall rate)
F14
H15
Restart Mode after Momentary Power Failure (Continuous running level)
F14
For configuring these function codes (restart time, frequency fall rate, and continuous
running level), refer to the description of F14.
H26 Thermistor (Mode selection)
H27 Thermistor (Level)
These function codes specify the PTC (Positive Temperature Coefficient) thermistor
embedded in the motor. The thermistor is used to protect the motor from overheating or
output an alarm signal.
Thermistor (Mode selection) (H26)
H26 selects the operation mode (protection or alarm) for the PTC thermistor as listed below.
Data for H26 Action
0 Disable
1
Enable
When the voltage sensed by the PTC thermistor exceeds the detection level,
the motor protective function (alarm
0h4
) is triggered so that the inverter
stops due to the alarm.
2
When the voltage sensed by the PTC thermistor exceeds the detection level,
the inverter issues digital output signal THM and continues to run.
Thermistor (Level) (H27)
H27 specifies the detection level (expressed in voltage) for the temperature sensed by the
PTC thermistor.
- Data setting range: 0.00 to 5.00 (V)
The temperature at which the overheating protection becomes activated depends on the
characteristics of the PTC thermistor. The internal resistance of the thermistor will
significantly change at the alarm temperature. The detection level (voltage) is specified based
on the change of the internal resistance.
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