Illustration 4.23: DC bus connections for enclosure C4.
Please contact Danfoss if you require further information.
4.1.21 Brake Connection Option
The connection cable to the brake resistor must be screened/
armoured.
Brake resistor
Terminal number 81 82
Terminals R- R+
Dynamic brake calls for extra equipment and safety
considerations. For further information, please contact
Danfoss.
1. Use cable clamps to connect the screen to the metal
cabinet of the frequency converter and to the
decoupling plate of the brake resistor.
2. Dimension the cross-section of the brake cable to
match the brake current.
Voltages up to 975 V DC (@ 600 V AC) may occur
between the terminals.
Illustration 4.24: Brake connection terminal for B3.
Illustration 4.25: Brake connection terminal for B4.
Electrical Installation
VLT
®
HVAC Drive Operating Instructions
MG.11.AD.02 - VLT
®
is a registered Danfoss trademark 37
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