5.3 Description of Function Codes
5-183
FUNCTION CODES
Chap 5
H89
Electronic thermal overload protection for motor – data retention
When the electronic thermal overload protection for motor is used, whether to clear the cumulative value of the
thermal by inverter power-off or retain the value after power-off can be specified.
Data for H89 Function
0 Clears cumulative value of thermal by inverter power-off.
1 Retains cumulative value of thermal after inverter power-off (factory default).
H86, H90
Reserved for particular manufacturers
H86 and H90 are reserved for particular manufacturers. Unless otherwise specified, do not access these function
codes.
H91
PID feedback wire break detection
Using the terminal [C1] (C1 function) (current input) for PID feedback signal enables wire break detection and
alarm (
cof
) issuance. H91 specifies whether the wire break detection is enabled, or the duration of detection.
(The inverter judges an input current to the terminal [C1] below 2 mA as a wire break.)
This function does not work unless C40 is set to 0.
• Data setting range: 0.0 (Disable wire break detection)
0.1 to 60.0 s (Detect wire break and issue
cof
alarm within the time)
H92, H93
Continuous running at the momentary power failure (P, I) (refer to F14)
Refer to the description of F14.
H94
Cumulative motor run time 1 (refer to H78)
Refer to the description of H78.
H95
DC braking (Braking response mode) (refer to F20 to F22)
Refer to the descriptions of F20 through F22.
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