YASKAWA L1000H - Page 44

9 Safe Disable Input Function
EN 44 YASKAWA Europe TOEP C710616 92D AC Drive L1000H Quick Start Guide
 Safe Disable Monitor Output Function and Digital Operator Display
The table below explains the drive output and Safe Disable monitor state depending on the Safe Disable inputs.
If a fault in the safety circuit of the drive is detected, “SCF” will be displayed in the LCD operator. This indicates damage
to the drive. Refer to General Fault and Alarms on page 38 for details.
 Validating Safe Disable Function
When you start-up, replace parts or conduct maintenance, you must always perform the following validation test on the
safe disable inputs after completing the wiring. (Check results should be maintained as a record of tests performed.)
• When the H1 and H2 signals turn OFF, confirm that “Hbb” is displayed on the LCD operator, and that the motor is not
in operation.
• Monitor the ON/OFF status of the H1 and H2 signals and confirm the EDM signal by referring to the table above.
If the ON/OFF status of the signals do not coincide with the display, the following must be considered: an error in the
external device, disconnection of the external wiring, short circuit in the external wiring, or a failure in the drive. Find the
cause and correct the problem.
• In normal operation, confirm the EDM signal by referring to the table above.
Drive Model
Safe Disable Input Safe Disable
Monitor
EDM
(DM+, DM-)
Safe Disable
Monitor
(H2- = 58)
Drive Output
Digital
Operator
Display
Input 1, H1-HC Input 2, H2-HC
CIMR-LA
Off Off Off On Safely disabled, “Safe Torque Off” Hbb (flashes)
On Off On On Safely disabled, “Safe Torque Off” HbbF (flashes)
Off On On On Safely disabled, “Safe Torque Off” HbbF (flashes)
On On On Off Baseblock, ready for operation Normal display
CIMR-LF
Off Off On On Safely disabled, “Safe Torque Off” Hbb (flashes)
On Off Off On Safely disabled, “Safe Torque Off” HbbF (flashes)
Off On Off On Safely disabled, “Safe Torque Off” HbbF (flashes)
On On Off Off Baseblock, ready for operation Normal display