Lenze 8250 series Brake unit - Manual (Page 25)

Installation
4-6 8250BA0903
4.3 Connection
4.3.1 Power connection
• All indications about cable cross-sections are
recommendations and refer to the application:
- in control cabinets and machines
- in cable ducts
- at a max. ambient temperature +40
°C
• The compliance with other standards (e.g.: VDE 0113, VDE
0289, etc.) remains the responsibility of the user.
• The cables between brake unit and controller must not be
longer than max. 2 m.
• If the brake unit is directly connected with the controller
and the cable length does not exceed £ 0.5 m, the cables
can be used as unscreened single cores.
• For a radio interference suppression (limit-value class A or
B) to DIN 55011 observe the following:
- The cables must be screened.
- For cable lengths up to 1 m it is sufficient to connect the
screen at the middle.
- For cable lengths > 1 m, the screen must always be
connected on both sides.
Connection
• The cables between controller and brake unit must be
DC-bus connected to the terminals +UG, -UG.
• Observe stud torques:
Terminals 0.5 ... 0.6 Nm e a s
4.4 ... 5.3 lbfin
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