Technical data

1
2
3
Repair
7-2
P/N 7135049A
E 2007 Nordson Corporation
VBC_Siemens
Replacing Motor Controller
CAUTION: Connect or disconnect lines only when the melter is
deenergized. The motor controller is still energized after switching off.
Wait at least three minutes before beginning any work!
Replacing Profibus Module or I/O Module of Motor Controller
1. Disconnect motor controller from power supply and wait at least
3 minutes.
2. Disconnect Profibus module (1, Fig. 7-1) or I/O board (3, Fig. 7-1)
connections.
3. With Profibus module: Release screw (2, Fig. 7-1) .
4. Detach defective module/board from motor controller.
5. Attach new module/board.
6. With Profibus module: Screw on module.
7. Connect according to the labels on the lines.
Fig. 7-1
Profibus Terminating Resistor
The last motor controller along the bus must be equipped with a terminating
resistor (120 W).
CAUTION: If there are pressure sensors built into the system, the last
pressure sensor receives a terminating resistor instead (1, Fig. 7-2).