Parker EX3 Notice D'instruction page 34

EX3 – EX4 – EX6 – EX8
5.4.6 Optional no-current holding brake
+
220Ω
½ W
220µF
63V
0.1µF
24V =
63V
-
Caution: Follow the polarity and the permissible voltage, and use shielded cables.
A 220 µF capacitor avoids untimely braking if the 24 V voltage is disturbed by the external relay.
Check the voltage value once this capacitor has been fitted. The RC network (220 Ω, 0.1 µF) is
needed to eliminate interference produced by the brake coil.
Position the contactor in the DC circuit to reduce brake response times. Follow the connection
instructions taking the brake polarisation into account.
5.4.7 Final connection
5.4.7.1 EX3 and EX4 Printed circuit
Conserver cette notice d'instruction
SAVE THESE INSTRUCTIONS
+
-
In the event that the servomotor is fitted with a
brake, check that the brake is working correctly
prior to starting up the motor.
The standard brake power supply is 24 Vcc DC
± 10%.
The holding brake is used to completely
immobilize the servomotor under load. It is not
designed to be used for repeated dynamic
braking; dynamic braking must only be used in
the case of an emergency stop.
34
PVD 3628 – 01 /2009