STW81V
12380-0710-00
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6 Connection Diagram
Stromsensor
Current sensor
Kontakte
Contacts
Stromwandler
Current transducer
Schieber zu
Closed slide
Schieber auf
Open slide
Absaugungsmotor
Extraction motor
7 Function
If a current between 0.5 and 5A flows through the connected current transducer type STWA1(H)
(adjustable by potentiometer I1-I8) or the current sensor S1 signals the current flow, or if the connected
contact is closed, the corresponding relay activates and the yellow LED goes on. If the current on
STWA1(H) falls below the set switching threshold, the corresponding relay is de-energized with a fixed
delay of 10 seconds. If it is the last relay energized, it switches off 20 s after K9.
At the same time, all 8 inputs are OR connected. If current is detected in at least one of the monitored
circuits, relay K9 closes contacts 95-98. The switching status of this relay is also indicated by a yellow
LED. The switch-off delay can be set in the range of 0 ... 60 s.
The corresponding yellow LED flashes during the delay. The STWA1(H) current transducer can be
loaded with a maximum current of AC 100 A.
