Function Diagram (Valve Status Sensed By Nc Contacts) - Dold SAFEMASTER BH 5904.02/00MF2 Betriebsanleitung

Function Diagram (Valve Status Sensed by NC contacts)

all operating modes
A1/A2
start
feed back
circuit
K1/K2
valve
status
output
48
output
58
LED
run 1
LED
run 2
t<t max
after connection of
supply voltage
Pic.: 2
Connection without contact reinforcement of contacts, valve sensor 1 changeover contact (switch 10: position 1, 4 or 7)
monitoring
no signal monitoring
Phases of valve monitoring
A1/A2
start
feed back
circuit
K1/K2
valve
status
manual
reset
output
48
output
58
LED
run 1
LED
run 2
t<t max
* valve reset
failure
Behaviour when failure detected
all operating modes
t<t max
* PLC-feed
back circuit
after connection of supply voltage,
if the feed back circuit is closed
t=t max
* valve starting
failure
all operating modes
t<t max t<t max
* PLC-
feed back circuit
at and after interruption
of feed back circuit
t<t max t=t max
* PLC-feed
back circuit
22
continuous monitoring (switch 10 = 3,4,5,6,7,8)
t<t max t<t max t<t max
t<t max
normal cyclic operation
t<t max
* valve reset
failure
BH 5904.02/00MF2 / 26.01.21 en / 306A
t<t max
M8520
M8522