ABB ACS880-104

One-channel digital input
1 2 3 4 5
Customer motor sensor(s)1
Customer protection relay(s)2
FSO module3
FSE module (optional)4
Drive STO5
Two-channel digital input
1 2 3 4 5
Customer motor sensor(s)1
Customer protection relay(s)2
FSO module3
FSE module (optional)4
Drive STO5
￭ Response times
The response time of the Safe disconnection (STO) function is < 50 ms for all ACS880
drives. For the exact response times for each drive/inverter module type, see the drive/inverter
module hardware manual.
When the function contains the FSO module, the response time of the Safe disconnection
function is < 100 ms.
Technical data 37