Appendix; Digital I/O (Pin Assignment) - Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual

13 Appendix

13.1 Digital I/O (Pin Assignment)

The two digital I/O ports provide two digital inputs and two relay outputs that can be used
to exchange digital signals with external devices.
Relay_NO*
Input
Relay_NC*
To connect an external device to a digital I/O port, use the appropriate mini-DIN cable (part
no. 6000.1004). The table lists the functions assigned to the connector pins and the color and
label of the cable wire connected to each pin (ignore the information on the cable label).
Pin Wire Color Signal Name
1 Pink
2 Gray Relay_NC
3 Green GND
4 Yellow Input
5 Brown Relay_COM
6 White Relay_NO
Important:
Important:
Tip:
Operating Instructions
Relay_COM
Ground
Not used
Fig. 95: Mini-DIN Digital I/O port
Fig. 96: Pin assignment (port and cable)
The maximum switching voltage of the relays is 24 V. The switching
current must not exceed 100 mA.
The maximum input voltage at the input must not exceed +5 V with
reference to ground. The minimum input voltage must not be lower
than the ground potential.
La tension maximale de commutation des relais est de 24 V.
L'intensité de commutation ne doit pas dépasser 100 mA.
La tension d'entrée maximale à l'entrée ne doit pas dépasser +5V
concernant la terre. La tension d'entrée minimale ne doit pas être
inferieur au potentiel de la terre.
The input has a pull-up resistor.
NCS-3500RS and NCP-3200RS
* NO = Normally open contact
NC = Normally closed contact
COM is the common contact for NO and NC. If
the relay is not activated or if the pump is turned
off, the connection is between COM and NC. If
the relay is activated, the connection is between
Com and NO.
Signal Level Remark
Not used
Potential free Opening contact
Ground Reference potential
TTL Digital input
Potential free Common contact for NO and NC
Potential free Closing contact
UltiMate 3000 Series:
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