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Inverter parameter setting
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Inverter parameter settingMITSUBISHI inverter control mode: speed control, PID control, or other way. To adopt the control mode, the general need to be based on the control accuracy, the need for static or dynamic identification.
Lowest operating frequency of Mitsubishi inverter: the motor running the minimum speed, motor at low speed operation, its thermal performance is poor, the motor to run for a long time at a low speed, causing the motor to burn. And at low speed, the current in the cable will also increase, it will lead to cable fever.
Mitsubishi inverter maximum operating frequency: General Mitsubishi Inverter maximum frequency to 60, and some even to 400Hz, high frequency will make motor runs at a high speed, which for general motors, over rated speed operation of the bearing can not be a long time, the rotor of the motor whether bear such a centrifugal force.
Mitsubishi inverter carrier frequency, carrier frequency setting of the higher harmonic component is larger, the length of the cable, motor heating, heating cable Mitsubishi Inverter fever factors are closely related. Mitsubishi Inverter in the parameter setting the motor power, current, voltage, speed, maximum frequency, these parameters can be obtained directly from the motor nameplate.
Mitsubishi inverter frequency hopping: at a certain frequency, there may happen resonance phenomenon, particularly in the device is relatively high; in the control of the compressor, to avoid the compressor surge point.
Operation procedure for setting up the parameters of MITSUBISHI frequency converter
One. Work monitoring options
1 standby mode is now frequency monitor
2 press SET key to enter current monitor
3 press SET key to enter the voltage monitor in the 2 State
4 press SET key to enter the alarm monitoring in 3 State
5 press SET key to enter the frequency monitoring in 4 state
Two. Work mode selection of inverter
1 monitor mode in standby mode
2 press MODE key to enter the frequency setting mode
3 in the 2 state press the MODE key to enter the parameter mode
4 press MODE key to enter the operating mode in the 3 State
5 press MODE key to enter the help mode in the 4 state
6 in the 5 state press MODE to return to the monitoring mode
Three. The main parameters of the inverter
1 upper bound frequency (Pr. 1)
Limit the frequency of the inverter output frequency, the factory is set to 120Hz
2 lower frequency (Pr. 2)
Limit the frequency of the inverter output frequency limit, as long as the starting signal is ON, the frequency to reach the lower limit value of the starting motor
3 deceleration time setting
Pr. 7 acceleration time Pr. 8 deceleration time Pr. Second 44 acceleration time Pr. Second 45 deceleration time
4 electron over current protection (Pr. 9) the rated current of the inverter
5 applicable load selection (Pr. 14)
Constant torque load (conveyor, car, etc.) set to 0
Low torque load (air blower, pump, etc.) set to 1. Factory setting value is 1
6 parameters are written to the Pr. 77) operation is set to 1 to prevent mal operation
Is limited to a set value of 0. Factory setting is 0
Do not write set value to 1
Even if the operation can be written to a set value of 2
7 operation with the voltage input signal (Pr. 73)
When the input signal is used, the specification of the frequency setting voltage signal of the terminal 2-5 key should be set.
1) 0-5V DC, set the value Pr. 73=1 (factory setting)
2) 0-10V DC, set Pr. 73=0
When the input signal is used, the input signal between the terminal 4-5 and the short circuit of the terminal AU-SD
8 setting voltage (current) gain setting
Voltage gain (Pr. 903) DC5V (or 10V) is 60Hz
Frequency setting current gain (Pr. 905) 0Hz, DC20ma, 60Hz, DC4ma
9 reverse prevention (Pr. 78)
Machinery used in only one direction, for example: air blower, pump
Both positive and negative can be set to 0, the factory setting value is 0
Irreversible setting value is 1
Can reverse the setting value is 2
Four. Frequency setting
1 first select the frequency setting mode
2 press the up \ \ down key to increase \ to reduce the setting frequency
3 press SET key to write the setting frequency. Screen flashing ice appears letter F, set the success
Five. Copy mode
In our work, we often encounter such a situation, there is a frequency converter to buy a new, but do not know
Original variable frequency parameter. This situation can be solved by using the copy mode of the converter. This mode can be used to operate
The parameters of the converter are directly copied to the target frequency converter. Specific methods are as follows:
1 source inverter power on, and select the parameters set mode
2 press the key, and then press the SET key to enter the parameter reading preparation period.
1.5 press SET key 3 seconds to read out the parameters, flashing, display read successfully
4 source inverter power. Start target frequency converter. By 1, the 2 step into the parameters of reading preparation period
5 enter the parameters into the preparation period according to the upward.
1.5 press SET key for 6 seconds to write parameters. Flashing, writing success
7 press the key to enter the parameter calibration preparation period
1.5 press SET key for 8 seconds, flashing, calibration parameters. If no error message is written successfully
9 turn off the target frequency converter and replace the new operation panel.
Six. Parameter settings
1 first select the parameter setting mode
2 press the SET key to enter the state of the change (at this time with the SET key to change the parameters of the digital)
3 press the up \ \ down key to increase \ the parameter
4 press the SET key to display the current setting value of the parameter.
5 press the up \ \ down key to increase \ \ to reduce the parameter setting value
1.5 press SET key 6 seconds to write the setting value, the screen is set to set the success of
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