EUCHNER MSC - 7.2.6. Safety relays (AZ-FO4, AZ-FO4 O8)

Operating Instructions
Modular Safety Control System MSC
34
(Translation of the original operating instructions) 2121331-04-04/19
7.2.6. Safety relays (AZ-FO4, AZ-FO4O8)
Characteristics of the output circuit
The modules AZ-FO4/ AZ-FO4O8 have safety relays with positively driven contacts with 1 normally open contact and 1
normally closed feedback loop contact. The modules AZ-FO4/ AZ-FO4O8 contain 4 safety relays.
Important!
¨ You will find the possible operating modes for the modules AZ-FO4/AZ-FO4O8 that can be configured
using the software EUCHNER SAFETY DESIGNER in the section "Relay [RELAY]".
Excitation voltage 17 – 31 VDC
Switching voltage, min. 10 VDC
Switching current, min., 20 mA
Switching voltage max. (DC) 250 VDC
Switching voltage max. (AC) 400 VAC
Switching current, max. 6 A
Response time 12 ms
Mechanical life contacts > 20 x 10
6
Table 19: Technical data AZ-FO4 / AZ-FO4O8
NOTICE
To ensure correct isolation and to prevent the risk of premature aging or damage to the relay, each
output cable is to be protected using a 4 A quick-blow fuse. In addition, the load characteristics must
correspond to the information in Table 19.