Status can be read in the Extended Status Word 2, bit number 24.
24-10 Bypass Function
Option: Function:
This parameter determines, what circumstances will activate the drive bypass function:
[0] * Disabled
[1] Enabled If in normal operation, the automatic drive bypass function will be activated at following conditions:
At a Trip Lock or a Trip. After the programmed number of reset attempts, programmed in par.
14-20
Reset Mode
or if the bypass delay timer (par.24-11
Bypass Delay Time
) expires before reset
attempts have been completed
When in fire mode, the bypass function will operate under following conditions:
When experiencing a trip at critical alarms, a coast or if the bypass delay timer expires before reset
attempts have completed when [2] Enabled in fire mode. The bypass function will operate at trip
at critical alarms, coast or if the bypass delay timer expires before reset attempts have been com-
pleted.
[2] Enabled (Fire Mode Only)
NOTE!
Important! After enabling the drive bypass function, the safe stop function (in versions, where included) no longer complies with
standard EN 954-1, Cat. 3 installations.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-234
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3
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