Sterlco SMC 2-3.5 Portable Chillers User Manual
Sterlco Equipment
Table of contents
Document Outline
- 1. Installation and Basic Operation
- 1.1 What Instrument Do I Have?
- 1.2 What Firmware Do I Have?
- Firmware V2.09 (Modbus) Firmware V2.50 (SPI)
- What Instrument Do I Have?
- Order Code
- 2. Wiring
- 3. Panel Layout
- 4. Operator Level 1
- 5. Operator Level 2
- 6. Access to Further Parameters
- 7. Custom Scrolling Text
- 8. Diagnostic Alarms
- 9. Digital Communications
- 10. Remote Setpoint (Optional)
- There are two inputs; 4-20mA and Volts which can be fitted in place of digital communications.
- It is not necessary to fit an external burden resistor to the 4-20mA input.
- If the 4-20mA remote setpoint input is connected and valid (>3.5mA; < 22mA) it will be used as the main setpoint. If it is not valid or not connected the controller will try to use the Volts input. Volts sensor break occurs at <-1; >+11V. The two inputs are not isolated from each other.
- If neither remote input is valid the controller will fall back to the internal setpoint, SP1 or SP2 and flash the alarm beacon.
- 11. Appendix A - Technical Specifications
- 12. Appendix B - ACS Custom Configuration Parameter List