Cross-references: /42.6 = Blatt 42, column 6. Locations: +CP01 power field, +CP02 control field, +CP03 instrumentation field, =LP01 local panel, =Turbine, =Generator, K02 gen. CB panel, =Kondensator, +JB100 bearing temps. PDF page ≠ Blatt — see Sheet index.
Control system core
Siemens S7-300 (CPU315) with 6×DI16, 2×DO16, 4×AI8; SC900 speed/pressure governor (-45A2) linked via MPI; ST800 AFA4 overspeed device (Pos.19.1); 3TK2821 E-stop safety relay (-43K1); operator panel via DP; Teleservice modem.
Trip chain (hardwired)
E-stop (-43K1 → -43K2/K3/K4) · overspeed ST800 (-52K2/K3) · SC900 SS/Trip (-47K3) · group trip (-72K2). Chain feeds SC900 Not-Aus input (Bl.46) and solenoid/trip valves.
Start/stop path
PB start (-40S5 or LP01 -S2) → E1.7 → PLC logic → A41.4 (-40K5) → SC900 turbine start (X65:133). Stop via E1.5 → A41.5 (-40K6). Ready chain: A41.3 (-72K7) → SC900 enable; A41.6 (-72K8) → ready lamp.
Data files (PLC merge keys)
sheets · cables · terminal_strips · devices · plc_rack · plc_io · circuits
Join PLC symbol table on E/A/PEW addresses in plc_io.json.
External interfaces
| Destination | Cables | Content |
|---|---|---|
| =Turbine | 2,3,4 | Aux oil pump, oil mist separator, oil heating (power) |
| +LP01 local panel | 20,21,22–27,28–35,36,37 | Turbine control, switches, speed signals, transducers, valves |
| =Generator conn. box | 5,10,11,12,16,17,18,41 | Heating, CTs, setpoints, excitation, PT100s |
| =Gen.schalterfeld K02 | 6,7,8,9,13,14,15 | VT/CT circuits, CB control & feedback |
| =Kondensator | 46–50,52,53 | Level, actuator, pump pressures, pump motors |
| +JB100 | 40 | PT100 turbine bearing temps (Pos.84.1–84.8) |
| =extern | 42,44,45,51 | Live steam PT100, ext. E-stop, horn, ext. trip |
Sheet index (PDF page ↔ Blatt)
| PDF page | Group | Blatt | Location | Title (DE) | Title (EN) |
|---|
Cables & interconnections (Anschlussplan Blatt 1–25)
| Cable | From (=CP) | To | Spec | Function | Blatt/p. |
|---|
Terminal strips
| Strip | Location | Type | Terminals | Role | PDF pages |
|---|
Devices
| Tag / Pos. | Location | DE | EN | Src p. |
|---|
S7 PLC rack (Blatt 65–69)
| Module | Part no. | Function | Blatt | Notes |
|---|
I/O map (extracted so far)
| Address | Module | Signal (DE) | Signal (EN) | Blatt |
|---|
Join the PLC symbol table on the Address column when the S7 project structure is loaded (next step). DI addressing: EB0–EB9; DO: AB40–43; AI: PEW320–383.
Circuit sheet summaries (extracted so far)
Each sheet includes a signal-flow diagram — read left to right: — dashed boxes are rails / cross-sheet signals.
| Blatt | PDF p. | Title | Function & cross-references |
|---|
Extracted: Blatt 40–43, 45–49, 52, 54, 65–69, 72, 76, 77 (control, protection, governor, PLC). Remaining for next batch: supply/measuring (1–23), generator protection & sync (30–39), valves CP-side (50, 51), ST810 (53), monitoring (57, 60–64), operator panel (71), temperature inputs (73–75), pumps & heaters (78–82), indications (89), condensate (91–96).