Pilz PMCtendo DD5 Operating Manual page 33

Function description
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The speed setpoint is brought from 100 ms to 0 within the internal delay time (internal
ENABLE). The emergency braking ramp DECDIS is selectable.
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The brake output BR+ switches at a speed of 5 rpm (VEL0) or after 5 s at the latest
(EMRGTO).
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The rise times (t
type (see motor documentation).
Safe actuation of the motor holding brake
Safe actuation of the holding brake also requires
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The N/O contact from a safety relay within the braking circuit.
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A suppression device (e.g. varistor or flywheel diode).
Wiring suggestion:
Fig.: Safe motor holding brake
R1: Suppression device
S1: N/O contact from a safety relay
4.2.4 Brake resistor
When the servo motor is braked, energy is fed back to the servo amplifier. This means that
the capacitors in the intermediate circuit are charged at higher voltages. The servo amplifier
switches the brake resistor to the intermediate circuit via the brake chopper. The brake res-
istor converts the braking energy into heat.
The servo amplifier has integrated brake resistors. Alternatively, external brake resistors
may be connected.
Setting the parameters
The thresholds for connecting the brake resistor to the mains voltage of the servo amplifier
are adjusted in the commissioning software (PASmotion).
Our Customer Support team can help you calculate the brake power you will need for your
plant.
Single-axis or multi-axis systems
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Single amplifier
–
Operating Manual PMCtendo DD5
1002236-EN-04
) and fall times (t
brH
Servo Drive
If the power regenerated from the motor is greater than the set brake power (as an
average over time or as a peak value), a message will appear (see section entitled
"Messages/Errors").
) of the motor holding brake depend on the motor
brL
X9
1
BR-
R1
2
BR+
S1
M
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