Delta EB3000 Series User Manual page 82

4-9-4-3 STO Function Validation
When you start-up, replace parts or perform maintenance, always implement the following
validation testing into the STO inputs after making the wiring. (The validation results should be kept
as records for maintenance.)
When STO1 and STO2 signals are ON, make sure that the UD indicator on KPED-LE02 has

been lighted off, and the motor does not run.
Monitor the ON / OFF status in SMO (SMO+, SMO-) signals, and verify the SMO signal based

on Table 4-16. If the ON / OFF status of the signal is different from displayed, consider the
following faults: external device fault, external wiring off, external wiring short circuit, or drive
malfunctions. Find the causes and take corrective actions.
During normal operation, verify the SMO signal based on Table 4-16.

4-9-4-4 24-hour Detection Function
Whenever the drive is powered-on, 24-hour timer starts to count cumulatively. When timer exceeds
24 hours, system enters into safe status and fault code StL5 will be triggered. At this time, activate
STO first, and then reset the drive.
NOTE: For details on closing 24-hour detection function, see MI=57 in Parameter Group 01 Input /
Output Parameters in Chapter 8 Descriptions of Parameter Settings.
4-29
Chapter 4 WiringEB3000