Electrical installation
Important notes
6
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54
EDKRBS470R DE/EN/FR 10.0
6 Electrical installation
6.1 Important notes
( Stop!
Possible overheating of the brake resistor during operation
Inadequate heat dissipation during operation can cause the brake
resistor to overheat.
Possible consequences:
ƒ The brake resistor is destroyed.
ƒ The drive is not braked but coasts to a standstill.
Protective measures:
ƒ Always connect the thermal contact of the brake resistor.
ƒ Integrate the thermal contact into the overall equipment
monitoring apparatus in such a way that the supply of power to
the standard device is switched off if the brake resistor overheats
(e.g. switch−off by means of mains contactor control).
6.2 Connection data
Connection Cable gland Type of
connection
Size of connection Tightening torque
RB1, RB2
(brake resistor)
M25
Screw terminal
0.5 ... 10 mm
2
20 ... 6 AWG
1.5 ... 1.8 Nm
13.3 ...15.9 lb−in
PE (protective
conductor)
Screw M4
2.2 ... 2.7 Nm
19.5 ... 23.9 lb−in
T1, T2
(thermal
contact)
M12 Screw terminal
0.25 ... 4 mm
2
24 ... 12 AWG
0.6 ...0.8 Nm
5.3 ... 7.1 lb−in
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