18 Safe Disable Input
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 189
WARNING
Sudden Movement Hazard. Do not use the drive output signals to control external holding
brakes or dynamic brakes for functional safety. Use a system that conforms to the functional safety requirements.
Incorrect application of the Safe Disable function can cause serious injury or death. Systems that use drive output
signals (including EDM) for safety are not safe because drive output signals are not safety components.
WARNING
Sudden Movement Hazard. Connect the Safe Disable inputs to the devices as specified
by the safety requirements. If you connect the Safe Disable inputs incorrectly, it can cause serious injury or death.
WARNING
Sudden Movement Hazard. To use the Safe Disable inputs, remove the jumpers between
terminals H1-HC and H2-HC. If the Safe Disable circuit does not work correctly, it can cause serious injury or
death.
WARNING
Sudden Movement Hazard. When you clear the Safe Disable input, make sure that the
Safe Disable Monitor output operates correctly as the specification for Safe Disable function. If the Safe Disable
circuit does not operate correctly, it can cause serious injury or death.
WARNING
Sudden Movement Hazard. Regularly examine the Safe Disable input and all other safety
features. A system that does not operate correctly can cause serious injury or death.
WARNING
Sudden Movement Hazard. Only let approved personnel who know about the drive,
instruction manual, and safety standards wire, examine, and maintain the Safe Disable input. If personnel are not
approved, it can cause serious injury or death.
WARNING
Sudden Movement Hazard. Only use the Safe Disable Monitor (multi-function output
terminal set to the EDM function) to monitor the Safe Disable status or to find a malfunction in the Safe Disable
inputs. The monitor output is not a safety output. If you use the Safe Disable Monitor incorrectly, it can cause
death or serious injury.
Note:
• When you use a drive with a built in safety function, you must replace it 10 years after first use.
• A maximum of 3 ms will elapse from when terminals H1 or H2 shut off until the drive switches to the “Safe Torque
Off” status. Set the OFF status for terminals H1 and H2 to hold for at least 3 ms. The drive may not be able to switch
to the “Safe Torque Off” status if terminals H1 and H2 are only open for less than 3 ms.
◆ 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”.
To Next Page
Loading...
Need help?
General