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| Optidrive P2 User Guide |
Version 3.07
www.invertekdrives.com
+24V DC
Wires should be
protected against
short circuits as shown
above
NOTE
The Maximum cable length from Voltage source to the drive terminals should not exceed 25 mtrs.
4.14.9. External Power Supply Specification
Voltage Rating (Nominal)
24V DC
STO Logic High
18-30V DC (Safe torque off in standby)
Current Consumption (Maximum)
100mA
4.14.10. Safety Relay Specification
The safety relay should be chosen so that at minimum it meets the safety standards that the drive meets.
Standard Requirements
SIL2 or PLd SC3 or better (With Forcibly guided Contacts)
Number of Output Contacts
2 independent
Switching Voltage Rating
30V DC
Switching Current
100mA
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
4.14.5. “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
4.14.5. “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
further guidance.
4
Elec
trical Installation
