User`s manual

Specifications Input/output module specifications
12 – 22
12.3.12 Digital input module QX71
Item QX71
Number of input points 32
Isolation method Photocoupler
Rated input voltage 5 V and 12 V DC (+20/–15 %, ripple ratio within 5 %)
Rated input current at 5 V DC: approx. 1.2 mA
at 12 V DC: approx. 3.3 mA
Max. simultaneously ON All inputs can be switched on simultaneously.
Inrush current —
ON voltage/ON current
≥ 3.5 V DC / ≥ 1 mA
OFF voltage/OFF current
≤ 1 V DC / ≤ 0.1 mA
Input impedance approx. 3.3 k
Ω
Response time
OFF
→ ON 1, 5, 10, 20, 70 ms
(Response time setting by parameters, initial setting: 10 ms)

ON → OFF 1, 5, 10, 20, 70 ms
(Response time setting by parameters, initial setting: 10 ms)

Groups of input 1; 32 points/common
(common terminal: B01 and B02)
Input status display One LED per input
Dielectric withstand voltage 560 V AC rms/3 cycles (altitude 2000 m)
External connections 40-pin connector
Applicable wire size
0.3 mm
2
Accessories External wiring connector
Internal current consumption
(5 V DC)
70 mA (all input points ON)
Weight 0.12 kg
External connections Pin Signal Pin Signal
B20 X00 A20 X10
B19 X01 A19 X11
B18 X02 A18 X12
B17 X03 A17 X13
B16 X04 A16 X14
B15 X05 A15 X15
B14 X06 A14 X16
B13 X07 A13 X17
B12 X08 A12 X18
B11 X09 A11 X19
B10 X0A A10 X1A
B09 X0B A09 X1B
B08 X0C A08 X1C
B07 X0D A07 X1D
B06 X0E A06 X1E
B05 X0F A05 X1F
B04 Vacant A04 Vacant
B03 Vacant A03 Vacant
B02 COM A02 Vacant
B01 COM A01 Vacant
Tab. 12-21: Input module QX71

The response times OFF –> ON and ON –> OFF can’t be set to different values.
NOTE The connector is no D-sub type.
Pin-Outs
(Module front view)
B20
B1
A1
A20
B2
For open collector (positive com-
mon) connection
For sensor (negative
common) connections
For TTL, LS-TTL, CMOS buffer
(positive common) connections
B02
B20
B20
B02
B01
Internal
circuit
LED
5/12 V DC
B02
Input module
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