16 Safe Disable Input
YASKAWA TOEPC71061737B GA800 Drive Installation & Primary Operation 105
◆ Using the Safe Disable Function
■ Safe Disable Circuit
The Safe Disable circuit has two isolated channels (terminals H1 and H2) that stop the output transistors. The input
can use the internal power supply of the drive.
Set the EDM function to one of the MFDO terminals [H2-xx = 21 or 121] to monitor the status of the Safe Disable
function. This is the “Safe Disable monitor output function”.
Figure 16.2 Safe Disable Function Wiring Example
■ Enabling and Disabling the Drive Output (“Safe Torque Off”)
Refer to Figure 16.3 for an example of drive operation when the drive changes from “Safe Torque Off” status to usual
operation.
Figure 16.3 Safe Disable Operation
Switching from Usual Operation to “Safe Torque Off”
Turn OFF (open) safety input terminal H1 or H2 to enable the Safe Disable function. When the Safe Disable function
is enabled while the motor is operating, the drive output and motor torque turn off and the motor always coasts to
stop. The b1-03 [Stopping Method Selection] setting does not have an effect on the stopping method.