ABB UCU-22 - Page 12

Description
Analog inputXAI
Analog outputXAO
CAN busXCAN
CAN bus termination switchXCAN TERM
Digital inputXDI
Digital input/outputXDIO
Drive-to-drive linkXD2D
+24 V output (for digital input)XD24
Ethernet ports for fieldbus, internal switchXETH1
XETH2
Ethernet ports for tool communication, internal
switch
XETH3
XETH4
Control panel connectionXPAN
Panel bus termination switchXPAN TERM
External power inputXPOW
Relay output RO1XRO1
Relay output RO2XRO2
Relay output RO3XRO3
Relay output RO4, reserved.XRO4
Safe torque off connection (input signals)XSTO
Safe torque off connection (to inverter modules)XSTO OUT
RS-485 linkX485
Fiber optic connections to converter modules
(VxT = transmitter, VxR = receiver)
V1T/V1R
…
V26T/V26R
12 Operation principle and hardware description