Johnson Controls SABROE UniSAB III Engineering Manual page 269

Control system for refrigerating compressors
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Calibration
LED position
DIN plug connection
1 = Supply +12 to 28V DC
2 = Common
3 = 4-20 mA Output
Fig. 41: Long-stroke capacity rod type SA96DX-I/Ex
Calibration instructions
Calibration, which must be performed before operation, is carried out as follows:
1.
Before connecting voltage to the LDS, check that the wiring connections are correct on the plug.
2.
Apply supply voltage for minimum 1 minute before calibration.
3.
Enable calibration mode by pressing the calibration button for 5 seconds.
4.
Move slide valve to 0% position, and push calibration button ONCE.
5.
Observe: The red LED will light up constantly (ON) for some seconds. When the red LED
flashes it will indicate that the unit is ready for 100% calibration.
6.
Now move the slide valve to 100% position, and push the calibration button TWICE. The red
LED will flash rapidly.
7.
Observe: When the red LED goes off, the calibration procedure is complete.
Note: The LEDs will power down after 5 min. (no flashing). To reactivate the LEDs, push the button
once.
The green LED indicates end position:
Green LED flashes if position <1%
Green LED is OFF if position is between 1 to 99%
Green LED is ON if position >99%
The red LED indicates power up and shows status during calibration according to the calibration
instruction.
Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
Calibration
push-button
LED calibration
269/346

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January 22, 2025

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