Digital Input Signal Inversions - Danfoss VACON NXP IP00 Operating Manual

VACON® NXP IP00 Drive Modules
Operating Guide
Illustration 54: Maximum Loads on +24 V/EXT+24 V Output
A Maximum 150 mA
B +24 V out

7.3.2.1 Digital Input Signal Inversions

The active signal level is different when the common inputs CMA and CMB (terminals 11 and 17) are connected to +24 V or to
ground (0 V).
The 24 V control voltage and the ground for the digital inputs and the common inputs (CMA, CMB) can be internal or external.
A
+24V
GND
Illustration 55: Positive/Negative Logic
A Positive logic (+24 V is the active signal) = the input is active when the switch is closed.
B Negative logic (0 V is the active signal) = the input is active when the switch is closed. Set the jumper X3 to the
position 'CMA/CMB isolated from ground'.
Related Links
•
Jumper Selections on the OPTA1 Basic Board
72 | Danfoss A/S © 2023.09
A
C
=
B
DIN1
DIN2
DIN3
CMA
C Maximum 250 mA
B
GND
+24V
Control Unit
DIN1
DIN2
DIN3
CMA
AQ351737303996en-000201 / DPD00888