Danfoss PLUS+1 Series Technical Information page 13

Technical Information
Inputs/Outputs Types and Specifications
PLUS+1® Controller Family
Specifications
Description
Allowed voltage at pin
Frequency range
Maximum discernable voltage (high
range)
Maximum discernable voltage
(middle range)
Maximum discernable voltage (low
range)
Minimum discernable voltage
Precision (high range)
Worst case error (high range)
Precision (middle range)
Worst case error (middle range)
Precision (low range)
Worst case error (low range)
Input impedance (pulled to 5 Vdc or
ground, middle and low range)
Input impedance (pulled to 2.5 Vdc
middle and low range)
Input impedance (no pull ups,
middle and low range)
Input impedance (pulled to 5 Vdc or
ground, high range)
Input impedance (pulled to 2.5 Vdc
high range)
I
nput impedance (no pull ups, high
range)
This table shows the rising and falling thresholds when the input is used as a digital or frequency input.
Specifications
Description
Rising voltage threshold (high
range)
Falling voltage threshold (high
range)
Rising voltage threshold (middle
range)
Falling voltage threshold (middle
range)
520L0719 • Rev PB • Feb 2014
Units Minimum Maximum
Vdc 0 36
Hz 0 10000
Vdc 35.3 36
Vdc 5.67 5.83
Vdc 0.440 0.456
Vdc 0 0.08
mV – – 36.5
mV – – 614
mV – – 5.62
mV – – 75
µ – – 438
V
mV – – 7.39
kΩ 13.9 14.3
kΩ 7.17 7.37
kΩ 230 236
kΩ 10.3 10.7
kΩ 6.07 6.27
kΩ 36.4 38.4
Units Minimum Maximum
Vdc – – – –
Vdc – – – –
Vdc 2.85 4.03
Vdc 1.15 2.59
Comment
In steps of 1 Hz.
36 Vdc is typical.
5.75 Vdc is typical.
0.448 Vdc is typical.
Comment
It is inadvisable to use the high range
option when configuring the input as
a digital or frequency input.
It is inadvisable to use the high range
option when configuring the input as
a digital or frequency input.
A digital input is guaranteed to be
read as high if the voltage is greater
than 4.03 Vdc. These numbers also
apply to frequency.
A digital input is guaranteed to be
read as low if the voltage is less than
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