Electrical Installation, Control Terminals - Danfoss VLT Automation Drive FC 300 Instruction Manual

VLT ® Automation Drive FC 300
Instruction Manual High Power
In the IP 00 (chassis) and IP 21 (NEMA 1) units, it is also possible to
connect the serial communication bus from the top of the unit as shown
on the picture to the right. On the IP 21 (NEMA 1) unit, a cover plate must
be removed.
Kit number for serial communication bus top connection: 176F1742
Installation of 24 Volt external DC Supply
Torque: 0.5-0.6 Nm (5 in-lbs)
Screw size: M3
24 V DC external supply can be used as low-voltage supply to the control card and any option cards installed. This enables full operation of the LCP
(including parameter setting) without connection to line power. Please note that a warning of low voltage will be given when 24 V DC has been connected;
however, there will be no tripping.
Use 24 V DC supply of type PELV to ensure correct galvanic isolation (type PELV) on the control terminals of the adjustable frequency
drive.
3.6.16 Access to Control Terminals
All terminals to the control cables are located beneath the LCP. They are accessed by opening the door of the IP21/ 54 version or removing the covers
of the IP00 version.

3.6.17 Electrical Installation, Control Terminals

To connect the cable to the terminal:
1. Strip insulation by about 0.34-0.39 in [9-10 mm]
2.
Insert a screwdriver 1) in the square hole.
3. Insert the cable in the adjacent circular hole.
4. Remove the screwdriver. The cable is now mounted in the terminal.
To remove the cable from the terminal:
1. Insert a screwdriver 1) in the square hole.
2. Pull out the cable.
1) Max. 0.015 x 0.1 in. [0.4 x 2.5 mm]
Figure 3.49: Top connection for the serial communication bus.
No.
35 (-), 36 (+)
MG.33.U2.22 - VLT ® is a registered Danfoss trademark
3 How to Install
Function
24 V external DC supply
3
3-55