SEW-Eurodrive MFE Series - Page 37

6
Electrical installation
Installation instructions for fieldbus interfaces, field distributors
Manual – EtherCAT
®
Interfaces, Field Distributors
37
6.2.3 Permitted connection cross section of terminals
Power terminals X1, X21
(screw terminals)
Control terminals X20
(cage clamp terminals)
Connection cross sec-
tion
0.2mm
2
– 4mm
2
0.08mm
2
– 2.5mm
2
The permitted tightening torque of the power terminals is 0.6Nm.
6.2.4 Looping through the DC 24 V supply voltage in the MFZ.1 module terminal box
• There are 2 M4 × 12 studs in the connection area of the DC 24 V supply. The
studs can be used for looping the DC 24 V supply voltage.
• The terminal studs have a current carrying capacity of 16A.
• The permitted tightening torque for the hex nuts of the terminal studs is 1.2Nm ±
20%.
6.2.5 Additional connection options with MFZ.6, MFZ.7 and MFZ.8 field distributors
• The connection area of the DC 24 V supply comprises an X29 terminal block with
2 M4 × 12 studs and a pluggable X40 terminal.
1141387787
• The X29 terminal block can be used as an alternative to the X20 terminal (see
chapter "Unit Structure" in the manual) for looping through the DC 24 V supply
voltage. Both studs are connected internally to the 24 V connection at terminal
X20.
Terminal assignment
No. Name Function
X29 1 24V 0V24 reference potential for module electronics and sensors
(studs, jumpered with terminal X20/11)
2 GND 0V24 reference potential for module electronics and sensors
(studs, jumpered with terminal X20/13)
• The plug-in terminal X40 ("Safety Power") is intended for the external DC 24 V
supply of the MOVIMOT
®
inverter using a safety relay.
This setup allows for the operation of a MOVIMOT
®
drive with FS marking in safety
applications. For detailed information, refer to the "MOVIMOT
®
MM..D – Functional
Safety" manual
25809148/EN – 01/2019