Serial Interface (Pin Assignment) - Sigma 4-5KRL Manual

Refrigerated Centrifuge for Robot Use Sigma 4-5KRL
Refrigerated Centrifuge for Robot Use Sigma 4-5KRL IVD
2 Layout and mode of operation
2.1.3

Serial interface (pin assignment)

1 floating, normally
closed contact (with
pin 4)
2 TxD (transmit)
3 RxD (receive)
4 floating, normally
closed contact (with
pin 1)
5 GND (ground)
6 not used
7 not used
8 not used
9 not used
14 / 113
There is a floating, normally closed contact between pin 1 and pin 4. When
the centrifuge is started, the contact opens, thereby signalling that the
centrifuge is ready for operation.
The switching capacity is 48 VDC/1 A maximum.
Fig. 5: Pin assignment of the serial interface
Version 11/2017, Rev. 1.7.1 of 08/12/2022 • sb
Translation of the original operating manual,