KEB COMBIVERT F6 - Page 98

Protection functions
98
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Subidx
Type
Name
Function
6
UINT16
deactivation time
The power off function is terminated when the speed setpoint
has reached zero and the deactivation time has expired. The
status changes to "Fault". The drive will become operational if
the following conditions are met:
DC voltage does not drop below the UP level (-> leads to un-
dervoltage error).
Restart speed level is set to = 0
The drive was in state "operational enable" before power off
has triggered.
7
UINT8
power off state
Display of the state
10
UINT16
torque limit gen.
regenerative torque limit
11
UINT16
torque limit mot.
motor torque limit
The motor torque limit should not be set to ZERO. The CDM
can either accelerate unintentionally due to system/model er-
rors, or the DC link voltage can increase up to OP error.
12
UINT16
DC-ctrl optimisation fac-
tor
The DC controller (PI controller) is designed according to the
symmetrical optimum. This factor indicates the hardness of the
controller (2=hard...15=soft). The DC link capacity (cu17) is
used as basis for the calculation.
NOTICE
➢ If the "stopping speed level" is set above the "restart speed
level", the energy fed back during shutdown can charge the DC
link by way that system recovery is detected or the DC link is
overloaded.
Remedy: Equate both levels.
Index
Subidx
IDtxt
Name
3920h
1
cu32
power-off . option code
Bit
Name
Function
0
Activated
0 = Power – Off function deactivated
1 = Power – Off function activated
1..15
reserved