Connection - ABB AC500 Series Installation Instructions Manual

27.4

Connection

1 I/O bus
2 Allocation between terminal number and signal name
3 4 yellow LEDs to display the signal states of the analog inputs I0 to I3
4 8 yellow LEDs to display the signal states of the outputs M0 to M3
5 1 green LED to display the state of the process supply voltage UP
6 2 green LEDs to display the states of the motor supply voltages UP3 and UP4
7 4 red LEDs to display errors CH-ERR1 to CH-ERR4
8 Label
9 Terminal unit TU542
2019/11/15
All I/O channels (digital and analog) are protected against reverse polarity,
reverse supply and continuous overvoltage up to 30 VDC.
3ADR024117M02xx, 11, en_US
PD501-4CH
Connection
213