Cabinet design and EMC for components, Blocksize format
10.5 24 V DC Supply Voltage
AC Drive
422 Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
24 V DC Supply Voltage
10.5.1
The 24 VDC voltage is required for the power supply:
1. The load voltage of the Control Unit digital outputs
The Control Units are supplied with power via the PM-IF. 24 V must also be connected in
the following cases:
– Commissioning / diagnostics when the Power Module power supply is switched-out.
– Using the digital outputs CU310-2
2. The electronics of Sensor Modules
3. The Safe Brake Relay (motor holding brakes)
Other loads can be connected to these power supply units if they are separately protected
from overcurrent.
Note
The electronic power supply has to
be supplied by the user as described in Chapter System
(Page 35).
When connecting to a "DC power supply" according to EN 60204
-1:1997, Chapter 4.3.3,
functional faults can occur due to the voltage interruptions that are permitted there.
Damage to further loads due to overvoltage
Overvoltage from switched inducted loads (contactors, relays) can damage connected
loads.
• Install suitable overvoltage protection.
Note
Malfunction because 24 V supply voltage is too low
If the 24 V supply voltage falls short of the specified minimum value on a device in the
assembly, a malfunction can occur.
Select an input voltage that is high enough for there to be sufficient voltage on the last
device. Do not exceed the maximum value for the supply voltage. If required, supply the
voltage to the assembly at various locations.
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