Mechanical Brake; Connection Of Sensors/Actuators On M12 Sockets - Danfoss VLT Decentral Drive FCD 302 Operating Manual

VLT® Decentral Drive FCD 302
Operating Guide

4.10.4 Mechanical Brake

Table 7: Terminals 122 and 123
Number
122 (optional function)
123 (optional function)
In hoisting/lowering applications, control of electro-mechanical brake is required:
• The brake is controlled using the special mechanical brake control/supply terminals 122 and 123.
•
Select [32] Mechanical brake control in parameter group 5-4* Relays, [1] Array, Relay 2 for applications with an electro-mechanical
brake.
• The brake is released when the motor current exceeds the preset value in parameter 2-20 Release Brake Current.
• The brake is engaged when the output frequency is less than the frequency set in parameter 2-21 Activate Brake Speed [RPM] or
parameter 2-22 Activate Brake Speed [Hz]. The brake engages only when the drive performs a stop command.
When the drive enters alarm mode or is exposed to an overvoltage situation, the mechanical brake immediately cuts in. For more
detailed information, refer to the VLT® AutomationDrive FC 301/FC 302 Programming Guide.
When the mechanical brake control/supply terminals 122 and 123 are set through parameter group 5–4* Relays, [1] Array , Relay 2,
only 1 relay output (Relay 1) is available for free programming.

4.10.5 Connection of Sensors/Actuators on M12 Sockets

Table 8: 4 x M12 Connection Input
Pin Wire color
1 Brown
3 Blue
4 Black
Table 9: 2 x M12 Connection Output
Pin Wire color
1 Brown
3 Blue
4 Black
When reserved wires for option are used. If not utilized, they can be cut off.
1
30 | Danfoss A/S © | 2020.07
Function
MBR+
MBR-
N O T I C E
Terminal
12
20
18, 19, 32, 33
Terminal
Reserved
20
02, 05
Mechanical brake
• UDC = 0.45 x RMS mains
voltage
• Maximum current = 0.8 A
Function
+24 V
0 V
Digital input
(1)
Electrical Installation
Function
Reserved
0 V
N.O. (24 V)
AQ267036816112EN-000101 / 130R0208