F3 DIO 16/8 01
4 Start-Up
HI 800 177 E Rev. 1.01
Page 47 of 58
4.6.2 Two-Pole
Connection
The DO+ output and DO- output of a channel are required for two-pole applications. In
each channel, the DO+ output is permanently assigned to DO- output.
In this case, 8 channels with 16 outputs are available.
i
To allow two-pole connection, the corresponding channels must be configured using the
DO[xx]
.2-pole [BOOL ] system signal.
In a 2-pole connection, no DI input must be connected to a DO output. This would inhibit
the detection of open-circuits.
i
The DO+ output must be connected to the DO- output of the same channel via the actuator.
DO+ outputs must not be connected with one another and DO- outputs must not be
connected with one another.
Exception: in pairs wiring
i
Inductive loads must be connected with free-wheeling diode on the actuator.
Actuator
Free-Wheeling Diode
Figure 12:
Two-Pole Connection of an Actuator
