Lenze 9400 Uživatelský manuál stáhnout pdf (Strana 271)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 271

7Braking operation

7.2 Monitoring

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• When the utilisation reaches the limit value (100 %):

• The response set in C00574

(default setting: "No response") is activated with the

corresponding effects on the state machine and the inverter.

• Only applies to software versions lower than V3.0:

The activation of the brake chopper is reset to the permanently permissible mark-to space

ratio (taking the parameterised brake resistance into consideration). (The brake chopper is

activated with 4 kHz, which means that it can be switched on/off at minimum intervals of

250 μs.)

 Stop!

The brake resistor can be thermally overloaded. Carry out protective measures suitable

for the installation, e.g.:

• Parameterisation of an error response in C00574

and evaluation of the parameterised

error message within the application or within the machine control.

• External interconnection using the thermal contact on the brake resistor (e.g. supply

interruption via the mains contactor and activation of the mechanical brakes).

 Note!

If the system is dimensioned correctly, this monitoring function should not respond. If

individual rated data of the actually connected brake resistor are not known, they have

to be determined "empirically".

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