
Digitax HD M753 Control User Guide
21
Issue Number: 3
Figure 4-1 Location of external 24 Vdc supply terminals
The 24 Vdc supply connector has been designed to allow wiring from either the left or right hand side of the drive. The same plug should be used but
attention is required to the polarity of the wiring. If it is reversed, the drive will not power up but will not be damaged.
For stand alone drives connection to either terminal is permissible.
4.2
Low voltage operation
The drive is able to operate from a low voltage DC supply with a range from 24 Vdc to the maximum DC volts.
It is possible for the drive to go from
operating on a normal line power supply voltage to operating on a much lower supply voltage without interruption.
Going from low voltage operation to normal mains operation requires the inrush current to be controlled. This may be provided externally. If not, the
drive supply can be interrupted to utilise the normal soft starting method in the drive.
To fully exploit the new low voltage mode of operation, the under voltage trip level is now user programmable. For application data, contact the
supplier of the drive.
The working voltage range of the low voltage DC power supply is as follows:
Minimum continuous operating voltage:
26 Vdc
Minimum start up voltage:
32 Vdc
Maximum over voltage trip threshold:
230 Vac drives: 415 Vdc
400 Vac drives: 830 Vdc
NOTE
Содержание Digitax HD M753 EtherCAT
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