4 Technical specifications
External sensors
The external sensors are used for seat-lift supervision when seat-lift can not be internally detected. The sensors get their supply
voltage from the terminal row. The output signals from the sensors are connected to two inputs on the terminal row on the
internal sensor unit. If the actual setup is set for internal seat-lift, the corresponding external signal is not used, otherwise the
external signal logically controls the corresponding feedback to the PLC (Programmable Logic Controller).
Note! If using external sensor, the sensor must be active/activated when performing a setup routine of the control head.
Supply voltage:
. . . . . . . . . . . . . . . . . . . . . As specified for the AS-Interface (typical 30VDC)
Supply current: . . . . . . . . . . . . . . . . . . . . . . Max. 15 mA per sensor.
Type of sensor: . . . . . . . . . . . . . . . . . . . . . . VDC, only 3-wire sensor, PNP.
Cable length:
. . . . . . . . . . . . . . . . . . . . . . . . Max. 3 m.
Slave profile v.2.1
Default slave address: 0
IO code: 7 (4 bit bi-directional)
ID code: F (slave without profile)
ID1 code: F
ID2 code: F
Slave profile = S-7.F.F.F
No. of slaves:
AS-Interface specification 2.1 for max. 31 ThinkTop units on a single master/gateway
Slave profile v.3.0
Default slave address: 0
IO code: 7 (4 bit bi-directional)
ID code: A
ID1 code: 7
ID2 code: 7
Slave profile = S-7.A.7.7
No. of slaves:
AS-Interface specification 3.0 for max. 62 ThinkTop units on a single master/gateway
AS-Interface bits assignment:
For the AS-Interface version with 31 and 62 nodes, the following bit assignment will be used:
DI 0
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Feedback # 1 De-Energised Position (closed position)
DI 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Feedback # 2 Energised Position (open position)
DI 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Feedback # 3-4 SeatLift 1 or 2 position
DI 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Feedback # 5 Status
DO 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not connected
DO 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solenoid valve 1
DO 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solenoid valve 2
DO 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solenoid valve 3
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