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Chapter 5 Detailed Function Introductions
158
Actual length/Preset length 0.001~65.53m
5.14 Protection and Fault Parameters (Group Pd)
Pd.00 Motor overload protection mode selection
Setting range: 0~3 [1]
0: Disabled
1: Common motor (with low speed compensation)
2: Variable frequency motor (without low speed compensation)
3: Sensor Protection (Immediate Over-threshold Protection)
Notes:
No Action
When 0 is selected, the frequency inverter has not overload protection of the lad motor, so it should be
selected and used prudently;
Common Motor (Compensation at the Low Speed)
As the fan of common motor is installed on the rotor shaft of motor and the fan rotates slowly in the case of
low speed, the heat radiation will get poor and the corresponding electronic thermal protection value will be
adjusted appropriately, i.e. the overload protection threshold value of motor whose operation frequency is
lower than 30Hz is reduced.
Variable-frequency Motor (No Compensation at the Low Speed)
As the fan of the special variable-frequency motor is not installed on the rotor shaft, the fan heat radiation
will not be affected by the rotating speed and the protection value in the case of low-speed operation should
not be adjusted.
Sensor Protection (Immediate Over-threshold Protection)
The protection function of the external thermal relay of motor is realized.
The protection threshold values of motor 1 and motor 2 are set through Pd.01 and Pd.03;
The sensor passage is set through Pd.02 and Pd.04.
Pd.01 Motor 1 protection threshold value
Setting range: 0.0
~
10.0V [10.0V]
Pd.02 Motor 1 protection sensor input channel
Setting range:
0~4
[
0
]
Pd.03 Motor 2 protection threshold value
Setting range:0.0~10.0V [10.0V]
Pd.04 Motor 2 protection sensor input channel
Setting range:
0~4
[
0
]
0: Terminal AI1
1: Terminal AI2
2: Terminal AI3 (Reserved for 3004GB and the below)
3: Pluse input
4: communication setting
Pd.05 Electro-thermal protective value
Setting range: 20~110% [100%]
Notes:
In order to apply effective overload protection to different kinds of motors, the Max output current of the
inverter should be adjusted as shown in Figure.5-13-1.
Содержание 6000S series
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