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1. Precautions during Replacement
These topics especially require your attention when replacing the 3G3MV series (referred below as: MV) to
the 3G3MX series (referred below as: MX).
1) Pulse train input/ pulse monitor output are not available.
Pulse train input and pulse monitor output terminals are not available on the MX control. Thus operation and
command with a pulse train is not possible. The operation using outer command input requires analog input
(voltage input or current input).
2) The number of Multi function input terminals on the MX is one less than the MV control.
The number of multi function input terminal on MX is 6. (MV input terminal: 7). Change to the MX is not
possible if all multi function input terminals are used on the MV.
3) The number of analog inputs is decreased to one.
The number of multi function analog input usable on the MX is one. Change to MX is not possible if two
analog inputs are used on the MV.
4) The functions below are not available on the MX.
・
Frequency reference loss detection function
・
Startup DC control function
・
Under torque detection
・
Energy saving control
5) Digital operator does not have copy function.
The MX digital operator is not equipped with a copy function. Use the digital operator sold separately
3G3AX-OP02 (released soon)
6) Difference of rated output current
MX drive has a rated output current lower than the MV drive.
Please refer to [6. The differences between MV and MX: rated output capacity/ current and carrier
frequency]
7) Please confirm the braking value when using braking resistors.
Regarding the capacity below, reconsideration on inverter capacity is perhaps necessary.
It is because the minimum connectable resistance value of MX is larger than the one of MV.
Please refer to [4. Standard braking torque and minimum connectable resistance value]
