Danfoss PLUS+1 SC0XX-1 Series, Technical Information, Page: 9 / 28

A/D refresh rates for SC Controllers
SC Controller A/D refresh rate
SC024-110/112 All: 1.0 ms
SC024-120/122 All: 1.0 ms
SC050-120/122 All: 1.0 ms
SC050-13H All: 1.0 ms
Digital/Analog/Frequency (DIN/AIN/FreqIN)
The characteristics of Digital/Analog/Frequency 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.
General
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.
Maximum frequency The controller may re-boot under some high frequency load conditions above 10 kHz.
Specifications
Description Units Minimum Maximum Comment
Allowed voltage at pin Vdc 0 36
Frequency range Hz 0 10,000 In steps of 1 Hz.
Frequency input when used as quad count or phase shift Hz 0 5000 In steps of 1 Hz.
Maximum discernable voltage (high range) Vdc 34.1 36.5 35.3 Vdc is typical.
Minimum discernable voltage (high range) mV 0 130
Maximum discernable voltage (middle range) Vdc 5.13 5.38 5.26 Vdc is typical.
Minimum discernable voltage (middle range) mV 0 20
Maximum discernable voltage (low range) Vdc 0.341 0.395 0.368 Vdc is typical.
Minimum discernable voltage (low range) mV 0 12.9
Precision (high range) mV — — 9
Worst case error (high range) Vdc — — 1.16
Precision (middle range) mV — — 1.3
Worst case error (middle range) mV — — 120
Precision (low range) mV — — 90
Worst case error (low range) mV — — 27
Input impedance (pulled to 5 Vdc or ground, low range) kΩ 13.9 14.3
Technical Information
PLUS+1 SC0XX-1XX Controller Family
Inputs
© Danfoss | June 2016 L1415500 | BC00000235en-US0201 | 9