YASKAWA L1000A Quick Start Manual page 50

9 Safe Disable Input Function

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.
Safe Disable Input
Drive Model
Input 1, H1-HC Input 2, H2-HC
Off
On
CIMR-
L A
Off
 
On
Off
On
CIMR-
L F
Off
 
On
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 42

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.
EN 50
Safe Disable
Monitor
EDM
(DM+, DM-)
Off
Off
Off
On
On
On
On
On
Off
On
Off
Off
On
Off
On
Off
Safe Disable
Monitor
(H2- = 58)
On Safely disabled, "Safe Torque Off" Hbb (flashes)
On Safely disabled, "Safe Torque Off" HbbF (flashes)
On Safely disabled, "Safe Torque Off" HbbF (flashes)
Off Baseblock, ready for operation
On Safely disabled, "Safe Torque Off" Hbb (flashes)
On Safely disabled, "Safe Torque Off" HbbF (flashes)
On Safely disabled, "Safe Torque Off" HbbF (flashes)
Off Baseblock, ready for operation
for details.
YASKAWA ELECTRIC TOEP C710616 33G AC Drive L1000A - Quick Start Guide
Drive Output Operator
Normal display
Normal display
Digital
Display