Danfoss VLT AQUA Drive FC 202 Programming Manual page 205

Parameter Description
NOTICE
During emergency mode operation, all stop commands to the frequency converter are ignored, including coast/coast
inverse and external interlock. However, if Safe Torque Off is available in the frequency converter, this function is still
active.
NOTICE
If using the live zero function in emergency mode, then it is also active for analog inputs other than that used for
emergency mode setpoint/feedback. Should the feedback to any of those other analog inputs be lost, for example a
cable is burned, live zero function operates. If this is not wanted, disable the live zero function for those other inputs.
Set the wanted live zero function if there is a missing signal when emergency mode is active in
parameter 6-02 Emergency Mode Live Zero Timeout Function.
Warning for live zero has a higher priority than the warning Emergency Mode.
NOTICE
If setting the command [11] Start Reversing on a digital input terminal in parameter 5-10 Terminal 18 Digital Input, the
frequency converter interprets this as a reversing command.
24-00 Emergency Mode Function
Option: Function:
NOTICE
In the above, alarms are produced or
ignored in accordance with the selection
in parameter 24-09 Emergency Mode
Alarm Handling.
[0] Disabled Emergency mode function is not active.
*
[1] Enabled- In this mode, the motor continues to operate
Run in a clockwise direction. Works only in open
Forward loop. Set parameter 24-01 Emergency Mode
Configuration to [0] Open Loop.
[2] Enabled- In this mode, the motor continues to operate
Run in a counterclockwise direction. Works only in
Reverse open loop. Set parameter 24-01 Emergency
Mode Configuration to [0] Open Loop.
[3] Enabled- In this mode, the output is disabled and the
Coast motor is allowed to coast to stop.
[4] Enabled-
Run
Fwd/Rev
24-01 Emergency Mode Configuration
Option: Function:
NOTICE
Before adjusting the PID controller, set
parameter 24-09 Emergency Mode Alarm
Handling, [2] Trip, All Alarms/Test.
MG20OB02
Programming Guide
24-01 Emergency Mode Configuration
Option:
[0] Open
Loop
*
[3] Closed
Loop
24-02 Emergency Mode Unit
Option:
[0]
[1] %
[2] RPM
[3] Hz
[4] Nm
[5] PPM
[10] 1/min
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Function:
NOTICE
If [2] Enable-Run Reverse is selected in
parameter 24-00 Emergency Mode Function,
[3] Closed Loop cannot be selected in
parameter 24-01 Emergency Mode Configu-
ration.
When emergency mode is active, the motor runs
with a fixed speed based on a reference set. The
unit is the same as selected in
parameter 0-02 Motor Speed Unit.
When emergency mode is active, the built-in PID
controller controls the speed based on the setpoint
and a feedback signal selected in
parameter 24-07 Emergency Mode Feedback Source.
Select the unit in parameter 24-02 Emergency Mode
Unit. For other PID controller settings, use
parameter group 20-** FC Closed Loop as for normal
operation. If the motor also is controlled by the
built-in PID controller when in normal operation,
the same transmitter can be used for both cases by
selecting the same source.
Function:
Select the unit when emergency mode is active
and running in closed loop.
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