This is an operation manual for the SR 90 series controllers, which introduces the model, terminal configuration, panel display, power on screen, flow chart, description, input range table, auxiliary output mode table, adjustment output characteristic description, locking mode table, error message description, problems and solutions.
The SR90 series controllers (models SR91‑SR94) support multiple inputs such as thermocouples, temperature resistors, voltage and current signals, and provide contact and SSR drive outputs. Power can be supplied from 100‑240 V AC or 24 V AC/DC, and optional auxiliary outputs and communication interfaces (RS‑485, RS‑232C) are available.
The manual includes terminal configuration tables, panel display explanations, power‑on screen details, flowcharts, input‑range tables, auxiliary‑output mode tables, adjustment‑output characteristics, lock‑mode tables, error‑message descriptions, and a troubleshooting section with problem‑and‑solution guidance. This manual is written in Chinese.
| Power Supply | 100‑240 V AC, 24 V AC/DC |
|---|---|
| Contact Output | Current (mA) and SSR drive voltage (V) |
| Communication Interface | RS‑485, RS‑232C |
Select the communication function option "5 : RS‑485" in the communication settings.