Figure 2-31: Typical Configuration; Table 2-27: Sto Electrical Specifications - Advantech Automation1 iXC4e Hardware Manual

iXC4e/XC4e Hardware Manual
Table 2-27: STO Electrical Specifications
Status
STO off (motion allowed)
STO on (safe state entered, no motion)
Recommended Wire Gauge
STO System Power Supply
STO Wire Length (maximum)
Figure 2-31 shows one safety device connected to multiple drives in parallel.
WARNING: The drive does not check for short circuits on the external STO wiring. If this is
not done by the external safety device, short circuits on the wiring must be excluded. Refer
to EN ISO 13849-2. For Category 4 systems, the exclusion of short circuits is mandatory.
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Figure 2-31: Typical Configuration
2.4. Safe Torque Off Input (STO)
Value
18-24 V, 7 ma
0-6 V
22-26 AWG (0.5 - 0.14 mm
PELV
50 m
2 )
63