Function library
Selection of control mode, optimisation of operating behaviour
7−20
L
EDB82MV752 EN 5.2
7.3.3 Controller inhibit
Description
If the controller inhibit is active, the power outputs are inhibited.
The drive idles to standstill without torque.
Keypad status display: Pulse inhibit
Status display of the controller: The green LED is blinking.
} Danger!
Do not use controller inhibit (DCTRL1−CINH) as emergency off. The controller inhibit
only inhibits the power outputs and does not disconnect the controller from the
mains!
The drive could restart any time.
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0040*
Controller inhibit
(CINH)
−0− Controller inhibited (CINH)
Controller can only be enabled if X3/28 =
HIGH
7−20
−1− Controller enabled (CINH)
Activation
Via terminal X3/28:
– LOW level at the terminal activates the controller inhibit (cannot be inverted)
– HIGH level enables the controller again
Via digital signal (linking C0410/10 with a signal source):
– LOW level at the signal source activates the controller inhibit (level inversion is possible with
C0411)
– HIGH level releases the controller again
Via keypad (condition: C0469 = 1):
– activates the controller inhibit
– enables the controller again
Via code C0040:
– C0040 = 0 activates the controller inhibit
– C0040 = 1 enables the controller again
) Note!
l The sources for controller inhibit are ANDed, i. e. the drive only restarts when the
controller inhibit is cancelled at all signal sources.
l The restart begins with an output frequency of 0 Hz, i.e. if the flying−restart circuit
is not activated, still rotating masses can lead to generative overload.
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