Invertek Drives Eco Optidrive Series User Manual page 19

"STO"FaultCodes
Fault Code
Code Number
"Sto-F"
29
4.8.6. "STO" Function response time
The total response time is the time from a safety related event occurring to the components (sum of) within the system responding and
becoming safe. (Stop Category 0 in accordance with IEC 60204-1)

The,response,time,from,the,"STO",inputs,being,de-energised to the output of the drive being in a state that will not produce
torque in the motor,("STO",active),is,less,than,1ms

The,response,time,from,the,"STO",inputs,being,de-energised,to,the,"STO",monitoring,status,changing,state,is,less,than,20ms

The response time from the drive sensing a fault in the STO circuit to the drive displaying the fault on the display/Digital output
showing drive not healthy is less than 20ms.
4.8.7. "STO" Electrical Installation
The,"STO",wiring,shall,be,protected,from,inadvertent,short,circuits,or,tampering,which,could,lead,to,failure,of,the,"STO",input
signal, further guidance is given in the diagrams below.
In,addition,to,the,wiring,guidelines,for,the,"STO",circuit,below,section,4.1.7 "Recommended,installation for EMC compliance should also be
followed.
The,drive,should,be,wired,as,illustrated,below,the,24Vdc,signal,source,applied,to,the,"STO",input,can,be,either,from,the 24Vdc on the drive
or from an External 24Vdc power supply.
4.8.1. Recommended "STO" wiring
Using an External 24Vdc Power Supply.
Safety relay
External
+24Vdc
Power
0V
Supply
1 2 3 4 5 6 7 8 9 10 11 12 13
External
+24Vdc
Power
Supply
Note : The Maximum cable length from Voltage source to the drive terminals should not exceed 25 metres.
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Optidrive Eco User Guide Revision 2.01
Description
A fault has been detected within either of the
internal,channels,of,the,"STO",circuit
Protective Capped Trunking
or equivalent to prevent
STO Cable short circuit to an
external Voltage source.
- Twisted-Pair
- Shielded cables
Safety relay
0V
Corrective Action
Refer to your Invertek Sales Partner
Using the drives on-board 24Vdc supply
Protective Capped Trunking
or equivalent to prevent
STO Cable short circuit to an
external Voltage source.
Safety
1213
relay
1 2 3 4 5 6 7 8 9 10 11 12 13
Wires should be
protected
against short
circuits as
shown above
1 7 1213
Protected
shielded cables
Safety relay
19