| Number of safety output points |
2 points |
4 points |
| Internal I/O common |
PNP (sourcing outputs) |
| Maximum load current |
2.0 A/point
4.0 A/Unit at 40°C
2.5 A/Unit at 55°CThe maximum load current depends on the installation orientation and
ambient temperature |
0.5 A/point and 2.0 A/Unit |
| Rated voltage |
24 VDC (20.4 to 28.8 VDC) |
Number of safety slave
connections |
1 |
| I/O refreshing method |
Free-Run refreshing |
| External connection terminals |
Screwless clamping terminal block (8 terminals) |
| Indicators |
[TS] indicator, [FS] indicator, [OUT] indicator,
[OUT ERR] indicator |
[TS] indicator, [FS] indicator, [OUT] indicator,
[OUT ERR] indicator |
| Safety output ON residual voltage |
1.2 V max. (Between IOV and all output terminals) |
| Safety output OFF residual voltage |
2 V max. (Between IOG and all output terminals) |
| Safety output leakage current |
0.1 mA max. |
| Dimensions |
12 × 100 × 71 mm (W × H × D) |
| Isolation method |
Photocoupler isolation |
| Insulation resistance |
20 MΩ min. between isolated circuits (at 100 VDC) |
| Dielectric strength |
510 VAC for 1 min between isolated circuits, leakage current: 5 mA max. |
| I/O power supply method |
Power supplied from the NX bus |
Current capacity of I/O power
supply terminals |
IOG: 2 A max./terminal |
IOG (A3 and B3): 2 A max./terminal
IOG (A7 and B7): 0.5 A max./terminal |
| NX Unit power consumption |
- Connected to a CPU Unit or a Communication Control Unit 1.05 W max.
- Connected to a Communications Coupler Unit 0.70 W max.
|
- Connected to a CPU Unit or a Communication Control Unit 1.10 W max.
- Connected to a Communications Coupler Unit 0.75 W max.
|
Current consumption from I/O
power supply |
40 mA max. |
60 mA max. |
| Weight |
65 g max. |
| Circuit layout |
 |
 |
| Terminal connection diagram |
So0 and So1: Safety output terminals
IOG: I/O power supply 0 V Refer to User’s manual (Cat. No. Z395) for details. |
So0 to So3: Safety output terminals
IOG: I/O power supply 0 V Refer to User’s manual (Cat. No. Z395) for details. |
Installation orientation and
restrictions |
Installation orientation:
Restrictions:
For upright installation, the ambient temperature is restricted as shown below depending on the total Unit load current. For all installation orientations other than upright installation, the ambient temperature is restricted as shown below according to the total Unit load current.

|
Installation orientation:
Restrictions:
None |
| Protective functions |
Overvoltage protection circuit and short detection (test outputs) |