10
3.1
Think
Top
®
, PLC 8-30 VDC interface
3. Technical specifications
LED B
"Open valve"
(Yellow)
IR-Receiver
LED D
"Setup/Internal fault" (Red)
LED C
"Seat-lift 1/2"
(Yellow)
LED E
"Solenoid valves"
(Green)
LED F
"Maintenance"
(Orange)
LED A
"Closed valve"
(Yellow)
Think
Top
®
Visual Indications
LED Indications
Feedback signals:
Signal:
"Closed Valve"
Terminal 1
(Feedback #1)
Signal:
"Open Valve"
Terminal 2
(Feedback #2)
Signal:
"Seat-lift 1"
Terminal 3
(Feedback #3)
Signal:
"Seat-lift 2"
Terminal 4
(Feedback #4)
Signal:
"Status"
Terminal 5
(Feedback #5)
For wire connections: See chapter 4 "Electrical connection, internal”.
Note:
Note:
Note:
Note:
Note: If the programmer wishes to detect a physical closed valve position in an "Open Valve" sensor position, then there is no
longer any consistence between the sensor valve detection position and the visual indications of the
Think
Top
®
.
Status signal:
The status signal (Feedback # 5) is used for four purposes:
•
To indicate that setup is in pr (LED D).
•
To indicate an error con (LED D). (Flashing LED = software error), (steady LED = hardware error).
•
To indicate maintenance due to the self adjustment pro (LED F).
•
To indicate that the time for maintenance has been r (LED F).
3.1.3 Technical specifications solenoid valves
Solenoid signals
Three output signals (with one common) from the terminal row are used for activation of the solenoids. Depending on the PLC
used, the common could be either positive or negative for DC voltage. The signals are galvanically isolated from the sensor
circuits.
Internal connections
Terminals for connection of the solenoids mounted internally in the control head. The number of solenoids actually mounted in the
control head could be 0 - 3. The signals are taken directly from the terminal row.
Summary of Contents for ThinkTop Digital 8
Page 1: ...IM70824 GB6 2002 12 ThinkTop Digital 8 30 VDC PNP NPN Instruction Manual...
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