Sto Function Logic Table; Sto Channel Delay Description - IMO HD2 IP Series Instruction Manual

HD2 IP55 High-ingress Protection Series
E.1

STO function logic table

The following table describes the input states and corresponding faults of the STO function.
STO input state
H1 and H2 opened
simultaneously
H1 and H2 closed
simultaneously
One of H and H2 opened, and
the other closed
E.2

STO channel delay description

The following table describes the trigger and indication delay of the STO channels.
HD2 IP55 High-ingress Protection Series inverter
1. STO function trigger delay: Time interval between trigger the STO function and switching off
the drive output
2. STO instruction delay: Time interval between trigger the STO function and STO output state
indication
STO mode
STO fault: STL1
STO mode
STO fault: STLC
STO fault: STL3
STO fault: STO
Corresponding fault
The STO function is triggered, and the drive stops running.
Fault code:
40: Safe torque off (STO)
The STOP function is not triggered, and the drive runs
properly.
The STL1, STLC, or STL3 fault
occurs. Fault code:
41: Channel H1 exception (STL1)
42: Channel H2 exception (STLC)
43: Channel H1 and H2 exceptions (STL3)
STO trigger and indication delay
Trigger delay < 10 ms
Indication delay < 280 ms
STO trigger and indication delay
Trigger delay < 10 ms
Indication delay < 280 ms
Trigger delay < 10 ms
Indication delay < 280 ms
Trigger delay < 10 ms
Indication delay < 100 ms
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STO function description
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