Festo CMMP-AS-...-M0 Series Description

6Functions
60 Festo – GDCP-CMMP-M0-FW-E N – 1304NH
6.7.2 Brake control and automatic brake
Function
The motor controller CMMP-AS-...-M0 can direc tly control a 24V holding brake integrated into the
motor.
Caution
If the maximum permissible c onnected loa ds are not complied with:
– The controller can be destroyed
– The functioning of the holding brake is not reliable.
• For c orrect connection and reliable control of the brake (safe stop, emergency stop),
observe the instructions in the hardware description
• In the c ase of higher current needs, t he brake must be switched via a coupling relay,
if nec essary with interference suppression.
Note
The holding brake must not be used to brake moving masses. Braking masses in move-
ment leads to increased wear and the functional failure of the holding brake:
– The brake must be o pened before a new positioning motion begins.
– The drive must stand st ill before the brake is closed.
• Pay attention to the required time delays ( brake delay time), in particular for holding
brakes with high mechanical inertia.
With longer time delays between command records, the automatic function of the holding brake closes
the brake and switches off the controller output stage (less temperature rise).
Note
In c ertain applications (e.g in synchronous mode), the automatic function can damage
the brake and/or the system.
In the case of parameterisation via the FCT software, the automatic brake can therefore
not be activated for synchronous operation.
• Check the operating conditions in your application before you ac tivate the automatic
brake.
If no command record is executed in the specified time, for axes under load:
– The current setpoint value is set to zero
– The brake is engaged
– The controller end stage is switched off.
Example
In this example, the ac tivation time of the automatic brake starts to run after the completion of a posi-
tioning record (MC). After the activation time has expired, the brake is c losed and the switc h-off delay
runs simultaneously. After the switch-off delay has expired, the controller end st age is switched off
(less warming).

Festo CMMP-AS-...-M0 Series Specifications

General

Brand	Festo
Model	CMMP-AS-...-M0 Series
Category	Controller
Language	English