4 Channel Programmable Sequential Controller Relay Module

Highly flexible 4 channel programmable sequential relay controller module. Ideal for creating complex multistep bespoke linear control sequences.

• industrial process control
• shop and museum displays
• interactive displays
• traffic light simulator (single or continuous repeating sequence)

• Each channel has up to 240 STEP periods
• Duration of each STEP period can be set from 0.5 Sec and 100 Minutes
• Program each channel to follow it's own set of linear Command Instructions
• Each Command Instruction can be set to last any number of STEPs (up to a combined total of 240 STEPs per channel)
• Choice of three actions for each Command Instruction:
• Activate Relay
• Deactivate Relay
• EXTernal - set relay according to status of the corresponding input (Closed = Activate Relay | Open = Deactivate Relay)
• Each channel can be programmed independently
• All channels commence from the same timeline base
• Programs are stored in non-volatile memory

Each channel has an EXTernal Input for connection to a contact closure (e.g. push/slide switch, relay, etc). When the program reaches an EXT command instruction, it will read the status of the corresponding input and Activate the relay if the contacts are closed or Deactivate it if the contacts are open. Relay will change state if input state changes while an EXT command is activate.

Lets say you set the STEP time to 1 second and you want Relay 1 to activate 3 seconds after the sequence commences and turn off 5 seconds later. Program the 1st command instruction to turn Relay 1 Off for STEPs 1 to 3. Program 2nd command instruction to turn Relay 1 On for Steps 4 to 8. You can keep adding more On, Off or Ext commands to use up all 240 STEPs or use an END or END REPEAT statement to complete the sequence when required. You can do the same for all 4 channels so very complex multi-channel sequences are possible.

Programmes are entered, modified or deleted using the LCD display and push buttons on the display board. The same buttons are also used to Start and End the sequenced once programmed.

The module includes protection against inverse polarity, output status LEDs and screw terminal connectors. Requires external 12V dc power supply.

Please see Order Code CI210 for a 2 channel version of this product.