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2.4. Safe Torque Off Input (STO)
The STO circuit is comprised of two identical channels, each of which must be energized in order for the
XL5e to produce motion. Each STO input is opto-isolated and accepts 24V levels directly without the
need for external current limiting resistors.
IMPORTANT
: The XL5e might be equipped with an STO bypass circuit board. The bypass
circuit board defeats the STO safety circuit and allows the system to run at all times. To use
the STO safety functionality, remove the circuit board and make connections as outlined in
this section.
IMPORTANT
: The application circuit and its suitability for the desired safety level is the
sole responsibility of the user of the XL5e.
WARNING
: STO wires must be insulated to prevent short circuits between connector pins.
The primary concern is a short circuit between STO 1 IN and STO 2 IN wire strands.
Table 2-24:
STO Connector Pinout
Pin # Signal
Description
In/Out/Bi
Connector
1
Power
Used to defeat STO by connecting to STO 1 IN
and STO 2 IN
N/A
2
STO 1 IN
STO Channel 1 Positive Input
Input
3
RETURN
STO Negative Input
Input
4
STO 2 IN
STO Channel 2 Positive Input
Input
5
Power Supply -
Used to defeat STO by connecting to RETURN
N/A
Table 2-25:
Mating Connector Part Numbers for the STO Connector
Description
Aerotech
P/N
Phoenix
P/N
Tightening
Torque
(Nm)
Wire Size:
AWG [mm
2
]
5-Pin Terminal Block
ECK02393
1827622
0.22 - 0.25
2.5 - 0.05 [14-30]
2.4. Safe Torque Off Input (STO)
XL5e Hardware Manual
50
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Страница 14: ...This page intentionally left blank Installation Overview XL5e Hardware Manual 14 www aerotech com...
Страница 21: ...1 2 2 Dimensions Figure 1 3 Dimensions XL5e Hardware Manual 1 2 2 Dimensions www aerotech com 21...
Страница 22: ...Figure 1 4 Dimensions EB1 1 2 2 Dimensions XL5e Hardware Manual 22 www aerotech com...
Страница 63: ...Figure 2 32 PSO Interface XL5e Hardware Manual 2 5 Auxiliary I O Connector www aerotech com 63...
Страница 82: ...Figure 3 2 Digital Outputs Schematic EB1 3 1 Digital Outputs EB1 XL5e Hardware Manual 82 www aerotech com...
Страница 98: ...This page intentionally left blank 5 2 Fuse Specifications XL5e Hardware Manual 98 www aerotech com...
Страница 104: ...This page intentionally left blank Appendix C Revision History XL5e Hardware Manual 104 www aerotech com...