3.10 4-channel Frequency Input Module KM227S
The KM227S module is the frequency and pulse signal acquisition
module, adopted to acquire frequency
and pulse signals in industry field.
3.10.1. Functions
Input signal types: TTL, OC gate, magnetic-electric sensor or dry
contacts
Pulse accumulate function
3.10.2. Panel
Running indicator
Green: In working
Dark: Abnormal
Channel indicator
Flash: Input channel has frequency(or pulse)
signal
Dark: Input channel has no frequency(or pulse)
signal
Communication indicator
Green: Redundant IO network is working
normally
Flash: One of IO networks is in fault
Dark: Two IO networks are all in fault
Fault indicator
Dark: Module is working normally
Flash: Modules occur faults
3.10.3. Technical specifications
CPU is isolated with input channel electrically, isolated
voltage>1500V
Each channel is isolated from each other, isolated voltage>1000V
Range of frequency signal: 0～24KHz
The max value of pulse accumulation: 4G
Resolution of measure: ±1Hz
Max power consumption: 5W
Operating environment temperature: -25℃～65℃
Storage temperature: -40℃～+85℃
Relative humidity: 5%～95% (non-condensing)
