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+--- Thread: PNP/NPN terminology for control signal (/showthread.php?tid=1527)
PNP/NPN terminology for control signal - eladn - 12-26-2021
In some 3rd-party applications the terms "PNP" / "NPN" are used to describe the polarity of the control signal (whether positive +12V or ground 0V voltage is used as the control signal). The KC868-H32BS outputs +12V (or +24V) per each output channel to control the relay. If a relay module is used, it gets a 0V as a common control line and +12V signal per each channel. Is this configuration considered as "PNP" or "NPN" connection from the point of view of the relay module?
RE: PNP/NPN terminology for control signal - admin - 12-27-2021
Yes, KC868-H32BS is "PNP" output.
RE: PNP/NPN terminology for control signal - eladn - 12-27-2021
Thanks!