8 Safe Disable Input Function
YASKAWA Europe
TOEP C710606 96A - AC Drive A1000 IP54 Wallmount - Quick Start Guide
EN 37
Safe Disable Status Monitor
With the Safe Disable monitor output (terminals DM+ and DM-), the drive provides a safety status feedback signal. This
signal should be read by the device that controls the Safe Disable inputs (PLC or a safety relay) in order to prohibit
leaving the “Safe Torque Off” status in case the safety circuit malfunctions. Refer to the instruction manual of the safety
device for details on this function.
Digital Operator Display
When both Safe Disable inputs are open, Hbb will flash in the digital operator display.
Should only one of the Safe Disable channels be on while the other is off, HbbF will flash in the display to indicate that
there is a problem in the safety circuit or in the drive. This display should not appear under normal conditions if the Safe
Disable circuit is utilized properly.
Refer to General Fault and Alarms on page 31
to resolve possible errors.
OFF
ON
ON
Safely disabled, “Safe
Torque Off”
HbbF (flashes)
ON
ON
ON
Baseblock, ready for
operation
Normal display
Safe Disable Input Status
Safe Disable Status
Monitor,
DM+ - DM-
Drive Output Status
Digital Operator Display
Input 1, H1-HC
Input 2, H2-HC
