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176 Appendix: Safe Torque Off (STO)
Installation
Typical input connections:
Note:
If the contacts of the safety circuit do not open/close within 1 ms of each other,
then a fault in the STO circuit or wiring is assumed and the drive will become
disabled. The maximum allowed cable length between the drive and the activation
switch is 30 m (98 ft).
Validating the operation of the Safe Torque Off function
IEC 61508 and EN 62061 require that the final assembler of the machinery validates
the operation of the safety function with an acceptance test.
The acceptance test must be performed:
• at initial start-up of the safety function
• after any changes related to the safety function (wiring, components, settings,
etc.)
• after any maintenance work related to the safety function.
If you connect an external Safe Torque Off circuit to the drive, perform the acceptance
test for the Safe Torque Off function as described in
Safety Manual: Safe Torque Off
(STO) function for MicroFlex e150 drives
(LT0313...).
X3:18
X3:19
X3:9
X3:8
MicroFlex e150
+24 V
+0 V
Safety circuit
(emergency stop
switch, relay etc.)
Safe
Torque Off
connections
24 V
External Supply
Common
Содержание MicroFlex e150
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Страница 20: ...20 Introduction to the manual ...
Страница 26: ...26 Hardware description ...
Страница 32: ...32 Mechanical installation ...
Страница 42: ...42 Planning the electrical installation ...
Страница 116: ...116 Start up ...
Страница 126: ...126 Fault tracing ...
Страница 152: ...152 Technical data EtherCAT Conformance Test Certificate ...
Страница 162: ...162 Technical data ...
Страница 178: ...178 Appendix Safe Torque Off STO STO function TüV certificate ...