Unidrive M/HS Frame 5 to 6 Power Installation Guide 55
Issue Number: 9
Safety information Product information Mechanical installation
Electrical installation
Technical data UL listing information
Table 4-4 24 Vdc Supply connections
* Terminal 9 on Unidrive M702 and Unidrive HS72
The working voltage range of the control 24 V power supply is as follows:
Minimum and maximum voltage values include ripple and noise. Ripple and noise values must not
exceed 5 %.
The working range of the 24 V power supply is as follows:
On size 6, the power 24 Vdc supply (terminals 51, 52) must be connected to enable the
24 V dc supply to be used as a backup supply, when the line power supply is removed. If
the power 24 Vdc supply is not connected none of the above mentioned functions can be
used, "Waiting For Power Systems" will be displayed on the keypad and no drive
operations are possible. The location of the power 24 Vdc can be identified from Figure 4-
5 Location of the 24 Vdc power supply connection on size 6 on page 56
Function Size 5 Size 6
Supplement the drive’s internal supply
Ter mina l
1, 2*
Terminal
1, 2*
Back-up supply for the control circuit
Ter mina l
1, 2*
Terminal
1, 2*
51, 52
1 0V common
2 +24 Vdc
Nominal operating voltage 24.0 Vdc
Minimum continuous operating voltage 19.2 V
Maximum continuous operating voltage 28.0 V
Minimum start up voltage 21.6 V
Maximum power supply requirement at 24 V 40 W
Recommended fuse 3 A, 50 Vdc
51 0V common
52 +24 Vdc
Size 6 only
Nominal operating voltage 24.0 Vdc
Minimum continuous operating voltage 18.6 Vdc
Maximum continuous operating voltage 28.0 Vdc
Minimum startup voltage 18.4 Vdc
Maximum power supply requirement 40 W
Recommended fuse 4 A @ 50 Vdc