Maxon EPOS4 50/5 - Table 3-48 STO Input Specification; Table 3-49 STO Output Specification; Figure 3-37 STO-OUT Circuit; Figure 3-36 STO-IN1 Circuit (Analogously Valid for STO-IN2)

Setup
Connections
EPOS4 50/5 Hardware Reference
3-46 CCMC | 2023-07 | rel11726
Table 3-48 STO input specification
Figure 3-36 STO-IN1 circuit (analogously valid for STO-IN2)
Table 3-49 STO output specification
Figure 3-37 STO-OUT circuit
Continued on next page.
Safe Torque Off inputs 1…2
Circuit type Optically isolated input
Input voltage 0…+30 VDC
Max. input voltage ±30 VDC
Logic 0 <1.0 VDC
Logic 1 >4.5 VDC
Input current at logic 1
>2 mA @ 5 VDC
typically 3.2 mA @ 24 VDC
Reaction time <25 ms
Safe Torque Off output
Circuit type
Optically isolated output with self-resetting short-
circuit protection
Max. input voltage ±30 VDC
Max. load current 15 mA
Leakage current <10 A @ +30 VDC
Max. voltage drop
1.3 V @ 2 mA
2.5 V @ 15 mA