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high impulse" signals can trigger the test timer and test information is included in the LCP and status word, as emergency mode
output "not operating as expected" is activated.
Parameter 24-43 Emergency Mode Signal Operation
Table 1052: Parameter 24-43 Emergency Mode Signal Operation
24-43 Emergency Mode Signal Operation
Default value: [0] Standard, active-high
Parameter type: Option
Setup: 1 setup
Conversion index: -
Data type: Uint8
Change during operation: True
N O T I C E
Ensure that the correct input selections and connections are in place as it is not possible to operation the LCP while emergency
mode is activated.
N O T I C E
If signal handling is set to inverse, a low
[196] EM active
and a low
[197] EM was active
indicate that the drive is off or power cy-
cling, which can be used to activate a redundant system.
Select how emergency mode input and output signals are handled. Before changing this parameter, disable
parameter 24-00 Emer-
gency Mode Function
.
Op-
tion
Name
Description
[0]*
Standard, ac-
tive-high
Normal high input and output signals operate the emergency mode function as long as they are active
(high).
[1]
Inverse, ac-
tive-low
This option adds safety rules to ensure that emergency mode still operates if a signal is lost.
[2]
Impulse, set-
reset
This option activates and stops the emergency mode operation on high signal impulse. Operation
mode is defined and activated by selected input signals and is frozen 2 s after the 1
st
signal activation.
Reset signal has the highest priority and is required to stop operation or switch to a new operation con-
figuration. A valid signal impulse has to be active for minimum 2 s.
N O T I C E
LCP copy and software download only accept parameter changes if
parameter 24-00 Emergency Mode
is set to
[0] Disabled
.
5.22.4 24-9* Multi-Motor Funct.
Parameter 24-90 Missing Motor Function
Table 1053: Parameter 24-90 Missing Motor Function
24-90 Missing Motor Function
Default value: [0] Off
Parameter type: Option
Setup: All setups
Conversion index: -
Data type: Uint8
Change during operation: True
Select the action to be taken if the motor current is below the limit calculated as a function of the output frequency. The function is
used for detecting, for example, a missing motor in multi-motor applications.
AU275636650261en-000101 / 130R0334 | 573
Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide