User's Manual

10
!
For safety reasons enable is possible only when the device is ready for
operation! This avoids that the motor starts running in an uncontrolled
manner when applying the operating voltage while the enable signal is
already applied.
That means a permanent wired connection of e.g. +24V after the enable
input ensures that the motor will not start running when switching on the
operating voltage.
The logic also switches off in case of undervoltage in the intermediate circuit
and undervoltage of the electronic voltages. The device changes to
readiness only when the minimum voltages, necessary for a safe operation,
are available.
The motor slows down and enable is disabled if an undervoltage of the
electronic supply occurs during the operation. If there is an undervoltage in
the intermediate circuit the motor slows down and starts running when the
minimum voltage is exceeded.