Specifications

Head Station STL-BT1 (CC-Link) CC-Link
Quick Start Guide for the MELSEC STlite Series 3 - 3
3.2.1 View
3.2.2 Device Supply
The device supply is intended both for the system and the field units. Two external supply voltages are
required:
● 24 V DC for the head station
● 24 V DC for the connected STlite modules (forwarded via the power jumper contacts)
The fieldbus interface is supplied with electrically isolated voltage from the internal system supply
module.
Fig. 3-3: Head station STL-BT1 (CC-Link)
Fig. 3-4: Block diagram for the head station STL-BT1 (CC-Link)
Status of power
supply
– System
– Power jumper contacts
Data contacts
Supply
24 V DC
0 V
Supply via power jumper
contacts
24 V DC
0 V
CC-Link interface
(9 pin D-Sub, female)
Address
Address
Configuration interface
Power jumper contacts
Transmission speed and
Address mode
Electronics
Modules
Field-
bus
interface
Fieldbus
interface
Electronics