Lenze 9400 - Manual (Page 549)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
549
11 Basic drive functions
11.12 Brake control
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
11.12.8 Carrying out brake test
This function can be used to check the holding torque of the brake.

Tip!
You can carry out this test in regular intervals, e. g. to detect a defect or wear of the brake
at an early stage.
Requirements
In order to be able to activate the brake test, the following requirements have to be met:
• The test torque in C02594 is set higher than 0 Nm.
• The permissible angle of rotation is set greater 0° in C02595 , thus standstill monitoring is
active.  Standstill monitoring ( 526)
• The brake is activated, i.e. the "brake closing time" ( C02589 ) and the "waiting time for status
monitoring" ( C02591 ) are elapsed.
• No other source for controller inhibit is active so that the controller inhibit can be deactivated
by the brake control.

Note!
Due to possible deviations in the torque generation, the test of the holding torque
cannot determine the holding torque exactly!
• The generated motor torque can deviate up to ±15 % from the default value
depending on temperature.
• The test torque is internally limited to the value of the motor reference torque
( C00057/2 ). A higher parameterisation of C02594 is automatically limited to this
value.