Test digital I/O: Set DI1 to "controlled stop" and trigger the motor to stop at the set deceleration (CS. DEC); Check if the output status of DO1 is consistent with the preset function.
Monitoring key parameters: Check the DC bus voltage (VBUS. VALUE), motor current (IL. FB), and temperature (DRV. TEMP) to confirm that there are no abnormal warnings or faults.
Detailed explanation of Safety Functions (STO)
(1) STO types and applicable scenarios
Global STO: Control the STO function of the entire string through AKD-C/MKD-C, suitable for multi axis synchronous safety control, supports 1-14 AKD-N (hardware revision C), response time ≤ 10ms (the more nodes, the faster the response), requires the use of original factory mixed cables, and is prohibited from accessing DS/DT models (not subject to global STO control).
Local STO (DS/DT models only): Independently controls a single driver through the X6 interface, suitable for single axis safety requirements (such as door control interlocking), requires external PELV level 24V power supply, response time ≤ 10ms, STO status output through X3 (for information feedback only, not for safety interlocking).
(2) STO security features
STO Structure ISO 13849-1 IEC 62061 MTTFd (year) PFH (1/h) SFF (%)
AKD-C+1 × AKD-N (global) PLd/CAT3 SIL2 ≥ 100 2.99E-08 97.08
MKD-C+14 × AKD-N (global) PLd/CAT3 SIL2 ≥ 100 1.86E-08 94.20
1 × AKD-N-DS/DT (local) PLd/CAT3 SIL2 ≥ 100 2.90E-08 97.12
(3) Usage restrictions
Prohibited for use in elevator drives, ship/marine environments, explosive environments, and corrosive/conductive dust environments.
STO only cuts off the motor torque and does not provide electrical isolation. During maintenance, it is necessary to disconnect the main power supply and wait for the capacitor to discharge.
An additional mechanical brake is required for the vertical axis, and the motor must be reduced to zero speed and the driver disabled before STO activation.
Fault handling and technical support
(1) Common faults and troubleshooting
Possible causes and troubleshooting measures for the fault phenomenon
The driver is unresponsive, the LED is not lit, and the 24V logic power supply is not connected or disconnected; Check for poor contact of X1 interface with 24V power supply voltage (18~30V required); Re plug and unplug the X1 cable, confirm that the pins are not bent
The motor does not rotate, there are no fault codes, and the hardware is not enabled
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