Parameter
Value
Common power supply voltage
For all outputs: terminals 1.8, 2.8, 3.8 and 4.8
(positive pole of the process supply voltage,
signal name UP)
Output voltage for signal 1
UP (-0.8 V)
Output delay (0->1 or 1->0)
On request
Output current
Rated value, per channel
500 mA at UP = 24 V
Maximum value (all channels together)
8 A
Leakage current with signal 0
< 0.5 mA
Rated protection fuse on UP
10 A fast
Demagnetization when inductive loads are
switched off
With varistors integrated in the module (see
figure below)
Switching frequency
With resistive load
On request
With inductive loads
Max. 0.5 Hz
With lamp loads
Max. 11 Hz with max. 5 W
Short-circuit-proof / overload-proof
Yes
Overload message (I > 0.7 A)
Yes, after ca. 100 ms
Output current limitation
Yes, automatic reactivation after short cir-
cuit/overload
Resistance to feedback against 24 V signals
Yes
Max. cable length
Shielded
1000 m
Unshielded
600 m
The following drawing shows the circuitry of a digital input/output with the varistors for demag-
netization when inductive loads are switched off.
UPx (+24 V)
Digital input/output
ZPx (0 V)
for demagnitization when inductive
loads are switched off
Fig. 21: Digital input/output (circuit diagram)
Device specifications
I/O modules > Digital I/O modules
2022/01/31
3ADR010278, 3, en_US
278
