User`s manual

Input/output module specifications Specifications
MELSEC System Q, Hardware 12 – 41
12.3.27 Transistor output module QY50

Sink type

The fuses inside the output module are unchangeable. They protect the external peripherals, if there occurs a
short circuit in the module.
The output module itself has no overload protection.
Item QY50

Number of outputs 16
Isolation method Photocoupler
Rated load voltage 12–24 V DC (+20/–15 %)
Maximum load current 0.5 A per output, 4 A per group
Maximum inrush current 4 A, 10 ms or less
Leakage current at OFF
≤ 0.1 mA
Maximum voltage drop at ON
≤ 0.3 V at 0.5 ,
Response time
OFF
→ ON ≤ 1 ms
ON
→ OFF ≤ 1 ms (rated load, resistive load)
Surge suppressor Zener Diode
Fuse
Two fuses 4 A parallel (nominal fuse current = 6.7 A), unchangeable

Fuse blow indication LED indicates it and signal is output to CPU
Groups of outputs
1; 16 points/common,
(common terminal: TB18)
Output status display One LED per output
Dielectric withstand voltage 560 V AC rms/3 cycles (altitude 2000 m)
External connections 18-point removable terminal block with screws (M3x6)
Applicable wire size
Core cable: 0.3 to 0.75 mm
2
(outside diameter: 2.8 mm max.)
External power
supply
Voltage 12–24 V DC (+20/-15 %, ripple ratio within 5 %)
Current 20 mA (at 24 V DC; all output points ON)
Internal current consumption
(5 V DC)
80 mA (all output points ON)
Weight 0.17 kg
Tab. 12-48: Transistor output module QY50
External connections
Terminal block
number
Signal
TB1 Y00
TB2 Y01
TB3 Y02
TB4 Y03
TB5 Y04
TB6 Y05
TB7 Y06
TB8 Y07
TB9 Y08
TB10 Y09
TB11 Y0A
TB12 Y0B
TB13 Y0C
TB14 Y0D
TB15 Y0E
TB16 Y0F
TB17 12/24 V DC
TB18 COM
Tab. 12-49: Transistor output module QY50 connections
TB1
LED
TB16
12/24 V DC
TB17
TB18
Internal circuit