Setup
Connection Specifications
maxon motor control
3-60
Document ID: rel8003
EPOS4 Positioning Controller
Edition: May 2018
EPOS4 Module/Compact 50/5 Hardware Reference
© 2018 maxon motor. Subject to change without prior notice.
Figure 3-43
STO-OUT circuit
Table 3-54
STO logic state
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
μ
A @ +30 VDC
Max. voltage drop
1.3 V @ 2 mA
2.5 V @ 15 mA
STO Logic State
STO-IN1
STO-IN2
STO-OUT
Power Stage
0
0
open
inactive
1
0
closed
inactive
0
1
closed
inactive
1
1
closed
active