Senquip ORB-X1-G, User Manual

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Figure 6.5. Equivalent circuit for inputs
Note The low pass filter is not applied when the input module is used to measure frequency and duty
cycle.
6.3.1 Specification
Parameter Specification
Maximum input voltage 72V
Analog measurement accuracy +-50mV
Input resistance 310k
Input filter cutoff frequency 70Hz
Minimum measureable frequency 1Hz
Maximum measureable frequency 5kHz
Minimum pulse duration for duty cycle measu10msec
6.3.2 Settings
Measurements can be scheduled as a multiple of the base-interval. The fastest possible measurement rate
is achieved by setting the interval to 1 in which case measurements will occur on every base interval. To
reduce power consumption, the measurement rate can be turned down by increasing the interval.
The mode selects the function of the input pin. Input 1 can be operated in Digital, Analog, Frequency and
Duty Cycle modes; input 2 only has Digital and Analog modes.
Analog mode
Select analog mode if the input is a voltage that needs to be measured. Analog measurement should be
used when interfacing with voltage-output sensors or when measuring a voltage, for instance when
reporting on solar capacity. The maximum voltage that can be measured is 72V and the resolution is
ORB User Guide, Release 1.1
6.3. Inputs 63