8 carrying out brake test, Carrying out brake test ( 549), 11 basic drive functions – Lenze 9400 User 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
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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
is set higher than 0 Nm.
• The permissible angle of rotation is set greater 0° in
, thus standstill monitoring is
active.
• The brake is activated, i.e. the "brake closing time" (
) and the "waiting time for status
monitoring" (
) 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
(
). A higher parameterisation of
is automatically limited to this
value.