Wiring Of Brake Resistor - Lenze 8400 StateLine C Hardware Manual

8.2.6

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
Protective measures:
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}
Danger!
Hot surface
The brake resistor may get very hot. (For temperatures see the mounting
instructions for the brake resistor.)
Possible consequences:
ƒ
ƒ
Protective measures:
ƒ
ƒ
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Protect the brake resistor and controller against destruction caused by overload:
Establish a safety shutdown using the thermostat of the brake resistor to disconnect
ƒ
the controller from the mains.
Connecting cable version
up to 0.5 m: twisted and unshielded
ƒ
from 0.5 to 5 m: shielded
ƒ
– Use shielded cables to meet the EMC requirements.
EDS84ASC552 EN 6.0
efesotomasyon.com - Lenze
Braking operation with external brake resistor
Death or severe injuries when touching the terminals.
Disconnect the standard device from the mains before working on the brake
resistor.
Check all power terminals for isolation from supply.
Select the mounting location so that the operating conditions mentioned in
the mounting instructions for the brake resistor are permanently
guaranteed.
Severe burns when touching the brake resistor.
Fire or smouldering fire if flammable material is placed near the brake
resistor or may get to it.
Before working on the brake resistor, check its surface temperature.
Select the mounting location so that the operating conditions mentioned in
the mounting instructions for the brake resistor are permanently
guaranteed.
Protect the mounting location through fire prevention.
l
Braking operation
Wiring of brake resistor
8
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