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Chapter
7
Technical Information
HC8X Heat Control
7-38
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8010043
Retrofitting / Conductor Bar Configuration
12. Push the end of the wiring marked "2" onto the flat plug connection of the thermally de-
layed overcurrent trip (see Fig. 7-3, page 7-38).
13. Push the end of the wiring marked "REL" onto the flat plug connection on the load relay.
Fig. 7-3:
Wiring on Overcurrent Trip and Load Relay
14. Check the correct assignment and firm seating of all connections.
15. Connect the respective PT100 temperature sensor to terminal strip X10 (see
Chapter 3.4 Connecting the Temperature Sensors, page 3-23).
16. Connect the respective heating circuit to the plug-in block terminal (included in the ret-
rofit kit) X1–X9 (see Chapter 3.3 Connecting the Heating Circuits, page 3-22).
17. Configure/address the respective power channel (see Chapter 4 Configuration and Ad-
18. Connect the ground line with flat plug contact in the case cover and check correct seat-
ing.
19. Close and screw on the case cover.
20. Connect the supply voltage to all poles.
21. Put the HC8X in operation (see Chapter 5 Start-up, page 5-31).
7.1.2
Retrofitting the HC8X with an Odd Number of Channels
Make available the retrofit kit without a load relay.
Danger of electrical shock!
Do not touch live parts.
Disconnect all poles of the power section and control section from the supply voltage
before opening the case.
Check whether the power section and the control section are free from voltage.
1.
Unscrew two screws from the case cover.
2.
Remove the case cover and pull off the ground conductor.
3.
If required, insert another thermally delayed overcurrent trip from below into the next
free drilling of the stainless steel bracket and secure it with a locking nut.