Braking operation
Braking operation with external brake resistor
Wiring of brake resistor
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EDS84DPS424 EN 5.0
9.2.2 Wiring of brake resistor
Danger!
Hazardous electrical voltage
During operation of the standard device and up to 3 minutes after power−off
hazardous electrical voltages may occur at the terminals of the brake resistor.
Possible consequences:
ƒ Death or severe injuries when touching the terminals.
Protective measures:
ƒ Disconnect the standard device from the mains before working on the brake
resistor.
ƒ Check all power terminals for isolation from supply.
ƒ Select the mounting location so that the operating conditions mentioned in
the mounting instructions for the brake resistor are permanently
guaranteed.
Danger!
Hot surface
The brake resistor may get very hot. (For temperatures see the mounting
instructions for the brake resistor.)
Possible consequences:
ƒ Severe burns when touching the brake resistor.
ƒ Fire or smouldering fire if flammable material is placed near the brake
resistor or may get to it.
Protective measures:
ƒ Before working on the brake resistor, check its surface temperature.
ƒ Select the mounting location so that the operating conditions mentioned in
the mounting instructions for the brake resistor are permanently
guaranteed.
ƒ Protect the mounting location through fire prevention.
Protect the brake resistor and controller against destruction caused by overload:
ƒ Establish an external safety shutdown using the thermostat of the brake resistor to
disconnect the controller from the mains.
ƒ Exception for devices with special connection for the thermostat of the brake
resistor: Use the device−internal safety shutdown.
Connecting cable version
ƒ up to 0.5 m: twisted and unshielded
ƒ from 0.5 to 5 m: shielded
– Use shielded cables to meet the EMC requirements.
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