Thermo Scientific Dionex AS-DV, Operator'S Manual

Page: 113 / 132

Doc. 065259-05 10/12
103
C • Relay Control
The 4-pin connector (see Figure C-1 ) on the rear panel of the Dionex AS-DV
provides one relay output and one TTL input.
The relay output can be programmed in Chromeleon to switch any low-voltage
device. Switched current must be no more than 200 mA at 5 VDC.
When connected to a controlling device, a signal from the device to the TTL input
starts the load cycle. This allows the Dionex AS-DV to operate without
Chromeleon control.
This appendix provides the following information:
•
A description of the Dionex AS-DV TTL input control function (see
Section C.1 ).
•
Instructions for connecting the Dionex AS-DV relay output and TTL input
(see
Section C.2 ).
•
Example connections to a previous generation of Dionex ion chromatograph,
and instructions for controlling the Dionex AS-DV without Chromeleon (see
Section C.3 ).
•
Instructions for controlling the Dionex AS-DV relay output with Chromeleon
(see
Section C.4 ).
Figure C-1. Relay Output and TTL Input Connector (on Dionex AS-DV Rear Panel)