Baelz Automatic BA 375-E42 - Page 3

BA_375-E42_01_DEF_MJ_4419
3 | 32W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de Seite | Page
Motorized Rotary Actuator baelz 375-E42
7. DIGITAL POSITIONER 7020A 18
7.1 Intended use 18
7.2 Operational modes and operating options 18
7.2.1 Standard operation using DIP switches 18
7.2.2 Standard operation using Modbus VT100 or direct addressing 18
7.2.3 Modbus mode 18
7.2.4 Normal and safety modes 19
7.2.5 Safety mode: freeze protection and excessive temperature 19
7.2.6 3-point control with a continuous output signal 19
7.3 Wiring diagrams and allocation of connection terminals 19
7.3.1 Wiring diagram 19
7.3.2 Allocation of connection terminals 20
7.4 CongurationoftheDIPswitches 21
7.4.1 Details on DIP switches 22
7.5 Commissioning 24
7.5.1 Quick start guide 24
7.5.2 Initialization run 24
7.5.3 Meaning of LED signals 25
7.6 Errors 26
7.6.1 Errors after an initialization run 26
7.6.2 Errors during normal positioner operation 27
7.7 TechnicalSpecications 28
7.8 Accessories and options 28
8. SPARE PARTS 29
9. DECOMMISIONING AND DISPOSAL 30
10. TROUBLESHOOTING 30
10.1 Checklist for operational malfunctions 31
11. DIMENSIONAL DRAWINGS 32