ABB M4M 20 - Page 24

24 M4M 20 NETWORK ANALYZER USER MANUAL
Inputs and outputs connections
• Digital outputs: Alarm output with external relays for load command. Example of wiring for DO1 as
alarm output COM is common for all Digital outputs:
A
B
DO1 DO2
COM
A: V aux 48 V a.c./d.c. 100mA
B: External relay
• Digital outputs: Pulse output. Example of wiring for DO1 as pulse output COM is common for all Digital
outputs:
A
C
DO1 DO2
COM
A: V aux 48 V a.c./d.c. 100mA
C: Pulse acquisition
• Digital outputs: Alarm output with external relays for load command (available only on M4M 20 I/O).
Example of wiring for I/O5 as alarm output COM is common for all Digital outputs:
A
B
I/O5 I/O6
COM
A: V aux 48 V a.c./d.c. 100mA
B: External relay
• Programmable I/O: Pulse output (available only on M4M 20 I/O). Example of wiring for I/O5 as pulse
output COM is common for all Digital outputs:
A
C
I/O5 I/O6
COM
A: V aux 48 V a.c./d.c. 100mA
C: Pulse acquisition
• Programmable I/O: Pulse input for external pulse acquisition (available only on M4M 20 I/O):
A
B
I/O5 I/O6
COM
A: 24-240VDC / 57-240VAC
B: Pulse acquisition (Impulse length at least 30 mS )
• Analogue outputs, typical load 250 Ohm, max 500 Ohm (available only on M4M 20 I/O):
COM AO1 AO2