ABB SACE Tmax XT7 Operation And Maintenance Manual page 144

Interface the module has three signaling leds:
Configurations
142 | © 2020 ABB | 1SDH001821A1002 - ECN000135670
Figure 40
LEDs Description
Signals the on status and correct communication with Ekip Touch:
• off: module off
• on steady or flashing synchronized with the Power led of Ekip Touch: module on and
Power
communication with Trip unit present.
• flashing not synchronized with the Power led of Ekip Touch (2 fast flashes per second):
module on and communication with Trip unit absent.
Indicates the status of the communication between network master and module (slave):
Rx • off: Modbus RTU communication not activated
• on with fast flashes: Modbus RTU communication activated
Indicates the status of the communication between network master and module (slave):
Tx • off: communication between Modbus RTU not activated
• on with fast flashes: Modbus RTU communication activated
Figure 41
Resistor Dip Description
120 Ω termination resistor
Rterm 1 and 2
Move dip-switches 1 and 2 to the ON position to connect Rterm
220 Ω pull-up or pull-down resistor
Rpol 3 and 4
Move dip-switches 3 and 4 to the ON position to connect Rpol
IMPORTANT: move the dip-switches before connecting the module to Ekip Supply
and the communication network
ON
1 2 3 4
External electronic accessories | 2 - Ekip Com Modbus RTU
ABB | SACE Tmax XT
Default
Off
Off