PLANET ICA-HM830 - Manual (Page 11)

Terminal block for I/O connectors:
Name Pin Function
GND 1
Digital input 4 2
Digital input 3 3
Digital input 2 4
Digital input 1 5
Four sets of Digital Input, DI1 until DI4; the internal device
is also photo-coupled electrical relay. In practice, the
external device can be simply an On/Off switch. Four sets
of On/Off switch can be connected as different trigger
source.
DO_NO 6
DO_COM 7
Digital output implementation; Pin6 to COM (Pin7) 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.
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