: The manual will stress industrial safety: installing a new controller requires the compressor to be completely powered down and isolated (Lockout/Tagout) before proceeding.
Once you have successfully downloaded the , do not read it cover to cover. Focus on these five critical sections first:
The is most commonly an electronic control unit used for screw air compressors (such as the Atlas Copco GX7–GX11 series and Ceccato CSM MAXI) to manage operations like starting, stopping, and monitoring pressure or temperature. Note that "ES99" also refers to a Samsung digital camera , so ensure you are looking at the correct device type. 1. Screw Compressor Controller (Atlas Copco / Ceccato)
The manual is typically provided with the compressor purchase. It can also be sourced from:
| Symptom | Likely Cause | Parameter to Check | | :--- | :--- | :--- | | Display shows ---- or S.b | Sensor open circuit or wrong type | Set INP to match your sensor (e.g., Pt100) | | Output LED on but heater stays cold | Relay contacts welded or SSR shorted | Check output type ( OT = SSR or Rly ) | | Temperature overshoots wildly | PID too aggressive or auto-tune not run | Run auto-tune or manually reduce Pb (proportional band) | | Keypad unresponsive | Lock parameter enabled | Find parameter LOC or LCK and set to 0 | | Modbus no communication | Wrong baud rate/parity | Set BPS to 9600, PAR to N.8.1 |
When the ES99 encounters an operational issue, it displays specific fault codes on the PV line. Use this matrix to identify and fix errors quickly: Error Code Potential Cause Recommended Action Input Over-range (PV value exceeds maximum limit)
