Digitax HD M75X Series Installation and Technical Guide
53
Issue Number: 5
4.4 External 24 Vdc supply
An external 24 Vdc supply is required to power all the low voltage requirements within the drive.
The cable length between the 24 Vdc power supply and the drive should not exceed 10 m.
The 0V connection of the external 24 Vdc power supply should be connected to the same ground connection as the drive. Where this is not possible
the 0V connection of the 24 Vdc power supply should be floating.
The working voltage range of the drive 24 V power circuit is as follow:
Table 4-4 Working voltage range of the 24 Vdc supply
Table 4-5 24 Vdc typical input current and power requirements
During start up of the external 24 Vdc supply, allow for an additional 1 A for 300 ms.
Figure 4-6 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.
The drive will power down and reset if the external 24 Vdc is removed.
All frame sizes
Nominal operating voltage
24.0 Vdc
Minimum continuous operating voltage
20.4 V
Maximum continuous operating voltage
28.8 V
Minimum start up voltage
20.4 V
Maximum fuse rating
30 A
Model / Option / Feature
Frame size
Typical input current (mA)
@ 24 V
Typical input power
(W)
Digitax HD M75X drive module
1, 2
894
21.5
3
1039
25
SI-option module
Per module
450
11
High current brake output
All
1200
28.8
KI-Compact display
All
10
0.24
KI-Remote LCD keypad
All
73
1.75
WARNING
NOTE
NOTE
Содержание Digitax HD M75 Series
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