Description
Honeywell SC-UMIX01
Technical Specifications
- Universal Input Channel: 2 channels
- Digital Input Channel: 2 channels
- Analog Output Channel: 2 channels
- Supported Input Signal: NTC10K, 0-10VDC, 4-20mA, dry contact
- Analog Output Signal: 0-10VDC modulating output, 20mA maximum per channel
- Analog Resolution: 12 bit for input, 11 bit for output
- Communication Interface: SC dedicated internal I/O bus
- Working Ambient Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 90% RH non-condensing
- Isolation Rating: 500VAC channel to logic isolation
- Mounting Method: TS35 standard DIN rail mounting
- Certification: UL60730, CE, RoHS
Functional Features 2 universal input channels support independent sensor type configuration. 2 digital input channels support dry contact and 24VDC discrete signal with adjustable debounce time. 2 analog output channels receive setpoint command from host controller and generate stable 0-10VDC modulating signal. It provides output loop overload and short circuit detection for each AO channel. It uploads input measurement value and output channel fault status to host controller. It has independent LED indicator for power, module fault and each channel. It adopts two-part removable terminal plug for easy wiring and replacement. It supports configurable safe state output value when communication fault occurs. It supports cascading on SC I/O bus with other SC series I/O modules.
Application Scenarios Air handling unit mixing damper control with duct temperature feedback Fan coil unit modulating valve control and room temperature and switch feedback Heat exchanger temperature regulating loop with pressure feedback Small HVAC unit mixed I/O point expansion Building automation compact control cabinet mixed I/O spare replacement
Performance Parameters
- Universal Input Measurement Accuracy: ±0.3°C for NTC10K, ±0.5% full scale for voltage and current signal
- Analog Output Regulation Accuracy: ±0.5% of full scale
- Output Response Time: Less than 0.4ms
- Digital Input Debounce Time: Configurable from 5ms to 500ms
- Insulation Resistance: Greater than 1000 MΩ
- Mean Time Between Failures: 890000 hours
- ESD Immunity: 8kV contact discharge
- Terminal Wiring Specification: 0.5mm² to 2.5mm² copper wire
Material Composition FR4 flame retardant PCB substrate ADC and DAC conversion chips Signal conditioning operational amplifier array High speed optocoupler isolation array for digital input TVS surge suppression diodes Current sampling precision resistors Nylon UL94 V-0 removable terminal block ABS flame retardant plastic housing Tri-color LED status indicators Steel DIN rail spring locking clip
Structural Features Compact DIN rail rectangular housing. Front panel integrates removable terminal plug and LED indicators for input and output channels. Rear side SC I/O bus connector for interconnection with host controller or other I/O modules. Internal PCB separates analog input sampling zone, analog output driving zone, digital input zone and digital communication zone to reduce signal interference. Quick-release locking clip secures the module on DIN rail. Anti-misalignment notch prevents reverse bus insertion.
Working Principle Field sensor or switch signal enters input channel and converts into digital value through ADC or optocoupler circuit. Digital measurement data is transmitted to SC host controller via dedicated I/O bus. Host controller sends modulating setpoint command back to the module according to control logic. DAC chip converts digital command into 0-10VDC analog driving signal to control damper or valve actuator. The sampling circuit continuously monitors output loop current. If overload or short circuit happens, the module triggers fault alarm and switches output to pre-configured safe state.
Installation Requirements Mount SC-UMIX01 on TS35 DIN rail inside dry control cabinet. Wire field sensor, switch and actuator shielded cable to corresponding terminals. Connect SC I/O bus cable between module and host controller. Configure input sensor type, output range and communication fault safe state in SC engineering software. Power on the bus and calibrate analog output range. Separate analog signal cable from high voltage power cable.
Usage Notes Each analog output channel load resistance must meet 0-10VDC load requirement. Do not connect inductive load directly to analog output terminals without surge protection. Shielded twisted pair cable is mandatory for all analog input and output wiring. Do not apply AC voltage to input or output terminals. Verify safe state configuration before commissioning modulating control loop.
