Chapter 7 Parameter Explanation
ET/EP/EH Series Intelligent Flexible Driver Manual
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18: Base blocking
If this function terminal is valid, it will disable the inverter output.
19: Light load switch input (spare)
20: Heavy load switch input (spare)
Both of these functions are used in the elevator industry. Compared with the counterweight, if the
actual load is lower than the counterweight, it is light load; if the actual load weight is greater than
the counterweight, it is heavy load.
21: Output contactor feedback (spare)
Generally, it is used in conjunction with output function 17 to control the inverter output contactor,
so as to confirm the pull-in state of the contactor before the inverter outputs the current, and cut off
the inverter output in time when the contactor trips and disconnects.
22: Brake contactor feedback (spare)
It is usually used together with output function 18 to identify whether the output contactor of the
brake is closed.
23: Brake limit feedback (spare)
It is usually used together with output function 18 to determine whether the brake is open in real
time.
31: Frequency increase (not maintained)
When this signal is valid, the target frequency will continue to increase until it reaches the limit
value. When the signal is invalid, the current frequency will maintain unchanged, with the stop and
power-off frequency of 0.
32: Frequency decrease (not maintained)
When this signal is valid, the target frequency will continue to decrease until it reaches 0. When the
signal is invalid, the current frequency will maintain unchanged, with the stop and power-off
frequency of 0.
34: Forward rotation deceleration
In the case of forward rotation, when this signal is valid, the target frequency will be 0Hz, and the
inverter will decelerate to 0Hz.
35: Reverse rotation deceleration
In the case of reverse rotation, when this signal is valid, the target frequency will be 0 Hz, and the
inverter will decelerate to 0Hz.
36: Forward rotation stop
In the case of forward rotation, when this signal is valid, the inverter will stop running.
37: Reverse rotation stop
In the case of reverse rotation, when this signal is valid, the inverter will stop running.
38: Frequency increase (maintained)
When this signal is valid, the target frequency will continue to increase until it reaches the limit
value. When the signal is invalid, the current frequency will maintain unchanged, even if the inverter
is shut down or powered off.
39: Frequency decrease (not maintained)
When this signal is valid, the target frequency continues to decrease until it reaches 0. When the
signal is invalid, the current frequency will maintain unchanged, even if the inverter is shut down or
powered off.
40: Jog frequency selection
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