Lenze 9400 Uživatelský manuál stáhnout pdf (Strana 539)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 539

11 Basic drive functions

11.12 Brake control

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11.12.5 Mode 2/12: Automatic control of the brake

If mode 2 or mode 12 is selected in C02580, the brake is controlled automatically, i. e. if another

basic function is activated, which results in a traversing of the drive, the brake is automatically

opened and operation is enabled. If the corresponding basic function is deactivated again, the drive

is stopped via the basic function "Stop

" and the brake is automatically closed again if the speed

setpoint and the actual speed value are below the speed threshold set in C02581

.

 Tip!

The 2/12 mode is the usual mode to control the brake.

In this mode, the BRK_bReleaseBrake input should be set permanently to FALSE unless a

manual release is required.

If BRK_bReleaseBrake = TRUE, the brake is released permanently and the automatic control

cannot close the brake.

• By the selection of the mode it is also defined in which way the brake is to be controlled:

• Mode 2: Current monitoring active, brake is automatically controlled via motor brake control

module.

• Mode 12: Current monitoring deactivated, brake is controlled via digital output. If a motor

brake control module is installed, this will also be controlled.

 Note!

The digital outputs are not suitable for the "direct" control of a motor holding brake!

• The digital output used must be connected to a relay or power contactor which

switches the brake supply.

• If a power contactor is used, the response and release time of the contactor contact is

also added to the response and release time of the brake.

For the operation with the motor brake control module:

• For single-axis controllers (Single Drive) the control (release) of the motor holding

brake is only possible if both the DC-bus voltage and a 24-V supply voltage are

available for the motor brake control!

• For multi-axis controllers (Multi Drive) the motor holding brake can also be released

without a DC-bus voltage.

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