JVL MIS17 Series User Manual page 64

3.3
The standard STO cable is yellow to signal "safety", and by using this official cable, the
disable output (pin 4) is not connected inside. If using another standard cable, pin 4 might
be connected and therefore 24 V is inside the cable and could be a risk in safety applica-
tions.
TT2561-01GB
3.3.5 Functional Proof tests
The functional safety standards require that functional proof tests be performed on the
equipment used in the system. Proof tests are performed at user-defined intervals and
are dependent upon PFD and PFH values.
IMPORTANT
The specific application determines the time frame for the proof test interval. Verify op-
eration of safety function after drive installation, modification, or maintenance.
Refer to STO commissioning test, page 70 for more information about how to test the
safety function.
64 JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
Installation
Brown = STOA input
Inner screen = STO GND
Inner screen = STO GND
Black = STOB input
Option
Outer Screen
Terminate outer screen
to earth
Inner screens isolated from outer screen
(Test voltage 500VDC)