IMO SD1 Series - D.3 STO Function Installation Check List

SD1 Series Inverters STO Function DescriptionOptional Peripheral Accessories
-164-
Either of H1 and H2
opened, and the
other closed
The STL1, STL2, or STL3 fault occurs.
Fault code:
41: Channel H1 exception (STL1)
42: Channel H2 exception (STL2)
43: Both channels H1 and H2 are abnormal
(STL3)
D.2 STO Channel Delay Description
The following table describes the trigger and indication delay of the STO channels.
STO mode
STO trigger delay
1
and STO
indication delay
2
STO fault: STL1
Trigger delay < 10 ms
Indication delay < 280 ms
STO fault: STL2
Trigger delay < 10 ms
Indication delay < 280 ms
STO fault: STL3
Trigger delay < 10 ms
Indication delay < 280 ms
STO fault: STO
Trigger delay < 10 ms
Indication delay < 100 ms
1. STO trigger delay: Time interval between triggering the STO function and switching off the
drive output
2. STO instruction delay: Time interval between triggering the STO function and indicating
STO output status
D.3 STO Function Installation Check List
Before installing the STO, check the items described in the following table to ensure that the
STO function can be properly used.