User`s manual

Input/output module specifications Specifications
MELSEC System Q, Hardware 12 – 19
12.3.10 Digital input module QX42-S1

Response time setting by parameters. Initial setting: 0.2 ms
Item QX42
Number of input points 64
Isolation method Photocoupler
Rated input voltage 24 V DC (+20/–15 %, ripple ratio within 5 %)
Rated input current approx. 4 mA
Max. simultaneously ON Refer to the derating chart
Inrush current —
ON voltage/ON current
≥ 19 V DC / ≥ 3 mA
OFF voltage/OFF current
≤ 9.5 V DC / ≤ 1.5 mA
Input impedance approx. 5.6 k
Ω
Response
time
Set value

0.1 ms 0.2 ms 0.4 ms 0.6 ms 1 ms
OFF
→ ON typ. 0.05 ms 0.15 ms 0.30 ms 0.55 ms 1.05 ms
max. 0.10 ms 0.20 ms 0.40 ms 0.60 ms 1.20 ms
ON
→ OFF typ. 0.15 ms 0.20 ms 0.35 ms 0.60 ms 1.10 ms
max. 0.2 ms 0.30 ms 0.50 ms 0.70 ms 1.30 ms
Groups of input 2; 32 points/common
(common terminal: 1B01/1B02 and 2B01/2B02)
Input status display One LED per input of a group, Groups are switchable
Dielectric withstand voltage 560 V AC rms/3 cycles (altitude 2000 m)
External connections Two 40-pin connectors
Applicable wire size
0.3 mm
2
Accessories  Connector A6CON
 Assembled cable Q40-CBL-3M/5M with 40 pin plug
Internal current consumption
(5 V DC)
90 mA (all input points ON)
Weight 0.18 kg
External connections
Tab. 12-18: Input module QX42-S1
Internal circuit
LED
1B01
1B02
1A05
24 V DC
Indication selector switch
Used to switch the LED
indications:
F: Inputs X00 to X1F
L: Inputs X20 to X3F
F
L
Input module
1B20
LED