User Documentation

Product Installation / Operation, ACT20X-HDI-SDO (NAMUR Pulse Isolator)
1066540000/08/12-2018 25
7.1.3 Electrical Connections
Terminal Function Connector Terminal Function Connector
11 SW Sense
Ex input
channel 1
41 COM / / OPTO +
output
channel 1
12 NAMUR − 42 NO / NC / OPTO –
13 SW Supply 43 COM / / OPTO +
output
channel 2
14 NAMUR + 44 NO / NC / OPTO –
21 SW Sense
Ex input
channel 2
51 GND
power supply
22 NAMUR − 52 +24 V DC
23 SW Supply 53 NC
status relay
24 NAMUR + 54 COM
Table 7-2: Electrical Connections
7.1.4 Function Description
(1) NAMUR sensor with cable error detection in case of cable disconnection or short circuit.
(2) Mechanical switch with cable error detection in case of cable disconnection or short circuit, when series
resistance (R
S
) and parallel resistance (R
P
) are mounted on the switch.
(3) Mechanical switch with cable error detection in case of cable disconnection, when parallel resistance
(R
P
) is mounted on the switch.
(4) Mechanical switch without cable error detection.
See illustration 7-2 "Functional Block Diagram" for further information.
7.1.5 Specifications
Features
• Configuration and monitoring via FDT/DTM-Software "WI-Manager".
• Selection of direct or inverted function for each channel.
• The device can be mounted in the safe area and in Zone 2 / Class I, Division 2 and receive signals from
Zone 0, 1, 2 and Zone 20, 21 and 22 including M1 / Class I/II/III, Division 1, Group A-G.
• Extended self diagnostic: Monitoring of error events and cable breakage via the individual status relay.
• LED indication for operation status and malfunction.
• 3-way galvanic isolation between input, output and supply.