6
Electrical installation
Installation instructions for fieldbus interfaces, field distributors
Manual – PROFINET IO Interfaces, Field Distributors
46
6.2.9
Additional connection options with MFZ.6, MFZ.7 and MFZ.8 field distributors
•
The connection part of the DC 24 V supply comprises an X29 terminal block with
two M4 x 12 studs and a pluggable X40 terminal.
1141387787
•
The X29 terminal block can be used as an alternative to the X20 terminal (see
chapter "Device 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.
Terminal assignment
No.
Name
Function
X40
1 24 V
24 V MOVIMOT
®
voltage supply for disconnection with safety
relay
2 GND
0V24 MOVIMOT
®
reference potential for disconnection with
safety relay
•
Terminal X29/1 is factory-jumpered with X40/1 and terminal X29/2 with X40/2, so
that the MOVIMOT
®
inverter is supplied by the same DC 24 V voltage as the field-
bus interface.
•
The guide values for both studs are:
– Current carrying capacity: 16 A
– Permitted tightening torque for the hex nuts: 1.2 Nm ± 20 %
•
The guide values for screw terminal X40 are:
– Current carrying capacity: 10 A
– Connection cross section: 0.25 mm
2
– 2.5 mm
2
– Permitted tightening torque: 0.6 Nm
22870857/EN – 12/2016
