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

4.14.6. "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).
 T he 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.
 T he response time from the "STO" inputs being de-energised to the "STO" monitoring status changing state is less than 20ms.
 T he 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.
4.14.7. "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 3. 1 . Recommended Installation for EMC Compliance on
page 26 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.
4.14.8. Recommended "STO" Wiring
Using an External 24Vdc Power Supply
Protective Capped Trunking
or equivalent to prevent
STO Cable short circuit to an
external Voltage source .
Safety relay
Safety relay
External
+24Vdc
Power
0V
Supply
- Twisted-Pair
- Shielded cables
NOTE The Maximum cable length from Voltage source to the drive terminals should not exceed 25 mtrs.
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Protective Capped Trunking
or equivalent to prevent
STO Cable short circuit to an
external Voltage source .
1213
- Twisted-Pair
- Shielded cables
Wires should be
protected against
short circuits as shown
Using the Drives On-board 24Vdc Supply
Protective Capped Trunking
or equivalent to prevent
STO Cable short circuit to an
external Voltage source.
Safety
relay
1213
above
Version 3.00 | Optidrive P2 User Guide | 29
Protective Capped Trunking
or equivalent to prevent
STO Cable short circuit to an
external Voltage source.
Safety
relay
1 7 1213
Protected
Protected
shielded cables
shielded cables
4
1 7 121