PD637 User’s Manual
51
51
FAQ
I/O Terminal Connector - Pin Assignment
Pin
Function
Description
1
COM
Digital output implementation; Pin2 to COM (Pin1) is a Photo-coupled relay on Normal
Open status. External device can directly connect to the terminals. However the current
that will go through the 2 nodes must not exceed 130mA. An external “Relay” can also be
connected to the terminals as an implementation. In this case, current (or/and voltage)
limitation is specified by the external Relay.
2
RELAY-NO
3
GND
Connect to GND to activate, or leave floating (or unconnected) to deactivate.
4
DIGITAL-IN
5
GND
PIN with a short wire connecting two revert to factory default settings.
6
DEFAULT
Содержание PD637
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