Danfoss PLUS+1 MC0XX-1 series, Technical Information, Page: 11 / 30

Load resistance versus worst case error
DIN/AIN/FreqIN; Din/AIN/FreqIN/Rheo (All models)
The characteristics of Digital/Analog/Frequency (DIN/AIN/FreqIN) pins are PLUS+1
® GUIDE software
controlled. The input can be digital, analog or frequency.
Inputs can be pulled to 5 Vdc, pulled to ground, pulled to 2.5 Vdc, or no pull-up/pull-down.
DIN/AIN/FreqIN general information
Description Comment
Response to input below minimum voltage Non-damaging, non-latching; reading saturates to the low limit.
Response to input above maximum voltage Non-damaging, non-latching; reading saturates to the high limit.
Expected measurement
Frequency (Hz)
Period (0.1 µsec)
Channel to channel phase shift (paired inputs . . . ) (0.1 ms).
PWM duty cycle (0.01%)—Duty cycle measurement only valid up to 5 kHz (FreqIN).
Edge count.
Quadrature count (paired inputs driven from a quadrature encoder).
Pull up/pull down configuration
No pull down/ pull up is standard with pull up or pull down programmable; failure modes are detectable.
As with analog input pins, values in the following table assume software compensation for AD converter
offset errors.
Specifications
Description Units Minimum Typical Maximum Comment
Allowed voltage at
pin V 0 — 36
Frequency range Hz 0 — 10,000 In steps of 1 Hz.
Frequency range
when input is used
as quad count or
phase shift Hz 0 — 5000 In steps of 1 Hz.
Low range
Minimum
discernible voltage
mV — — 12.9
Maximum
discernible voltage mV 341 368 394
Technical Information
PLUS+1® MC0XX-1XX Controller Family
Inputs/outputs types and specifications
© Danfoss | April 2018 L1321895 | BC00000227en-US0401 | 11