2 | Optidrive P2 User Guide | Version 3.00 - Invertek Drives Optidrive ODP-2 User Manual

4.14.9. External Power Supply Specification
Voltage Rating (Nominal)
STO Logic High
Current Consumption (Maximum)
4.14.10. Safety Relay Specification
The safety relay should be chosen so that at minimum it meets the safety standards in which the drive meets.
Standard Requirements
Number of Output Contacts
Switching Voltage Rating
Switching Current
4.14.11. Enabling the "STO" Function
The "STO" function is always enabled in the drive regardless of operating mode or parameter changes made by the user.
4.14.12. Testing the "STO" Function
Before commissioning the system the "STO" function should always be tested for correct operation, this should include the following
tests:
 With the motor at standstill, and a stop command given to the drive (as per the start source method selected in P1-13):
o De-energise the "STO" inputs (Drive will display ""InHibit").
o Give a start command (as per the start source method selected in P1-13) and check that the drive still displays "Inhibit" and that
the operation is in line with the section 4. 1 4.4. "STO" Operation and section 4. 1 4.5. "STO" Status and Monitoring.
 With the motor running normally (from the drive):
o De-energise the "STO" inputs.
o Check that the drive displays "Inhibt" and that the motor stops and that the operation is in line with the section and section
4. 1 4.4. "STO" Operation and section 4. 1 4.5. "STO" Status and Monitoring.
4.14.13. "STO" Function Maintenance
The "STO" function should be included within the control systems scheduled maintenance program so that the function is regularly
tested for integrity (Minimum once per Year), furthermore the function should be integrity tested following any safety system
modifications or maintenance work. If drive fault messages are observed refer to section 1 1. 1 . Fault Messages on page 74 for
further guidance.
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30 | Optidrive P2 User Guide | Version 3.00
24Vdc
18-30Vdc (Safe torque off in standby)
100mA
SIL2 or PLd SC3 or better (With Forcibly guided Contacts)
2 independent
30Vdc
100mA
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