ICS-1000 Ion Chromatography System Operator's Manual

ICS-1000 Ion Chromatography SystemThe outputs can be used to control functions in external devices such as anautosampler or another Dionex module. When connected to a controlling device,the inputs can be programmed to perform the following ICS-1000 functions:• Switch the injection valve position (load/inject)• Perform an autozero command (set the conductivity to zero)• Turn the pump on and off (also turns the suppressor on and off)• Send a chart mark signal to the analog output. The mark is 10% of the fullscalevoltage, and the duration is 0.5 seconds. A mark can be used, forexample, to indicate the injection.Relay outputs 1 and 2 can be programmed to switch any low-voltage control.Switched current must be less than 200 mA and 42 V peak.Connecting a TTL or Relay1. Locate the twisted pair ofwires (P/N 043598) and the12-position connector plug(P/N 923687) (seeFigure C-2) in the ICS-1000Ship Kit (P/N 057905).2. Follow these basic steps toconnect the TTL or relays.Position 1Position 12LockingScrewsa. For each relay or TTL to Figure C-2. 12-Position Connector Plugbe used, connect anactive wire (red) and a ground wire (black) to the 12-position connectorplug at the appropriate pin locations. Refer to Figure C-1 or the label onthe ICS-1000 rear panel for the connector pin assignments.To attach a wire to the plug, strip the end of the wire, insert it into theplug, and use a screwdriver to tighten the locking screw. If necessary,multiple ground wires can be attached to a single TTL input/outputground pin.When attaching wires to the connector plug, be careful not to allowstray strands of wire to short to the adjoining position on theconnector.b. Plug the connector into the 12-pin connector on the ICS-1000 rear panel.C-2 Doc. 031879-01 3/03