Features:
- Connection: 25 pin D-sub
- Channels: 16
- Rated voltage: 50 V
TU854 terminates 16 ABB S800 I/O channels.
Connection, process power, current limits and keying must match the cabinet.
Verify every channel through its I/O module after installing TU854.
Verified resources for ABB TU854:
Terminal Data:
- Connection: 25 pin D-sub
- Channels: 16
- Rated voltage: 50 V
Keep TU854 within terminal, current and voltage limits.
Module Fit:
- Approved I/O: the ABB-listed I/O modules
- Confirm mechanical keying
- Verify single or redundant use
The I/O module and TU854 must be approved together.
Field Wiring:
- Check conductor size
- Apply specified terminal torque
- Verify process-power distribution
Test every TU854 field connection.
Installation Check:
- Verify mounting orientation
- Inspect terminal and bus engagement
- Perform end-to-end tests
Record tests after installing TU854.