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What are the specifications for the STO inputs on the ATV Process drives.

Issue:   What are the specifications for the STO inputs on the ATV Process drives.
 
Product Line:   ATV600 ATV900 ATV320 ATV340
 
Environment:  Altivar Process
 
Cause:   STO inputs specifications
 
Resolution:   
Characteristics of ATV Process STO inputs
 PLC compatibility:  complies with IEC/EN61131-2 logic type 1 and type 3, for voltage levels
 Positive logic (Source):
  State 0 if  ≤ 5Vdc or STO not wired,
  State 1 if ≥ 11Vdc
 Impedance:     ≥ 2.2kΩ
 Maximum current:      10mA min at 19V input for external (Preventa) Relay
 Response time:      10ms
 
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