The following also applies:
• When connected to a "DC power supply" as specied in EN 60204-1:1997, Chapter 4.3.3,
malfunctions may occur due to the voltage interruptions permitted for them.
• When using a holding brake, take into consideration the restricted voltage tolerances (24 V
± 10%) that may apply.
• A malfunction can occur if the 24 V supply voltage falls below the specied minimum value
at a component in the drive line-up.
– Select an input voltage that is high enough for there to be sucient voltage at the last
component.
– Do not exceed the maximum supply voltage value.
– If required, supply the voltage to the assembly at various locations in the drive line-up.
Supplying other loads
Other loads can be connected to the power supply units if they are separately protected
against overcurrent.
4.10.2 Selecting the input voltage of a holding brake
Requirement
NOTICE
Premature wear of the holding brake when incorrectly operated
Operating the holding brake outside its permissible voltage range at the motor connection will
damage the brake.
• Ensure that the holding brake is only operated within its permissible voltage range.
NOTICE
Faulty holding brake function due to inadmissible wear
Inadmissible wear means that the holding brake function can no longer be guaranteed.
• Comply with the specied EMERGENCY STOP characteristics.
• Avoid repeated brief acceleration of the motor against a holding brake that is still closed.
Consider the operating times of the holding brakes and relay switching times in the drive
control and when enabling the drive.
Note
Protection circuit against overvoltages
The Motor Modules have an integrated overvoltage protection circuit for the holding brake.
External protection circuits are not required.
Application planning
4.1024 V DC supply voltage
Booksize power units
48 Equipment Manual, 09/2023, A5E53307519B AA