*) Due to the direct connection to the output, the demagnetizing varistor is also effective at the
input (see figure) above. This is why the difference between UPx and the input signal must not
exceed the clamp voltage of the varistor. The varistor limits the clamp voltage to approx. 36 V.
Consequently, the input voltage must range from -12 V to +30 V when UPx = 24 V and from
-6 V to +30 V when UPx = 30 V.
Technical Data of the Digital Inputs/Outputs if used as Outputs
Parameter Value
Number of channels per module Max. 24 transistor outputs
Reference potential for all outputs Terminals 1.9, 2.9, 3.9 and 4.9 (negative pole
of the process supply voltage, signal name ZP)
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 circuit/
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.
I/O Modules > Digital I/O Modules
2019/04/173ADR010121, 13, en_US320
To Next Page
Loading...
