17 parameterisable additional functions, 1 undervoltage recognition of the dc link, 2 connection between limiter and safety module – Lenze E94AxHE Technology Application CiA402 Device profile User Manual
Page 173: Parameterisable additional functions, Undervoltage recognition of the dc link, Connection between limiter and safety module

EDS94TA11010xxxx EN 1.2 - 03/2010
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9400 Technology applications | CiA402 device profile
Parameter setting & configuration
Parameterisable additional functions
3.17
Parameterisable additional functions
3.17.1
Undervoltage recognition of the DC link
serves to parameterise an undervoltage recognition of the DC link. For this, the DC
link voltage measured by the motor interface is compared to the voltage limit set in
.
If the DC link voltage falls below the voltage limit, the
– error response (Lenze setting: "Quick stop by trouble") set in C05902/1 is triggered
and the "DC-bus undervoltage" error response is entered into the logbook when the
controller is enabled (module ID: 999, error ID: 8001).
– no error response if the controller is inhibited.
The voltage threshold can be parameterised in
in the range 0.00 ... 100.00%
(100% ≡ 1000V).
If
= 0% is set (Lenze setting), the undervoltage recognition is deactivated.
Example:
The voltage threshold is set to 51.10% in
If the DC link voltage falls below the value of 511V, the error response set in C05902/1
(Lenze setting: "quick stop by trouble") is carried out if the controller is enabled.
3.17.2
Connection between limiter and safety module
The connection between the "limiter" basic function and the safety module is useful for a
single drive. In a safety case, the drive will autonomously be turned into a "safe state".
However, problems can occur in a drive system if single axes carry out independent motion
sequences which are not initiated by the control.
serves to parameterise if the connection between "limiter" basic function and the
safety module should be opened or closed (Lenze setting).