Safe Torque Off (Sto) - JVL MAC050 User Manual

2.16
2.16.1 Introduction to the STO function.
The STO function can be used for disabling the energy to the motor. The motor will
thereby be set in a state where it produces no torque.
The STO function have its own input connector mounted at the front of the motor.
It is a 2 input system and it is required that both inputs are activated (applied with a volt-
age) before the motor is energized and can operate normally.
The STO is only available on following products MAC400, MAC1500, MAC3000 and
MAC4500 in the standard versions.
The STO input connector is placed as shown below. The illustration is based on the
MAC400 motor but the STO connector is placed similar at the MAC1500, MAC3000 and
MAC4500.
!
Important general information:
- The STO function is not approved by any third party laboratory (only pending)
- Please notice that removing the energy from the motor by use of the STO function
do not necessarily stop the motor rotation since any attached load inertia will have
an influence when the movement is stopped fully.
- The person that install and service the motor must have a general knowledge con-
cerning electrical equipment and safety functions.
- The STO function is considered as functional and reliable for 20 years.
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Safe Torque Off (STO)

Safe Torque Off (STO)
Connector
JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
Only MAC400/402,1500-4500
TT1270-01GB