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Part of the Omron CP-Series Compact PLCs series — see the full model table, lifecycle status and replacement parts.

Omron CP1W-20EDT — front view of the 20-point expansion unit showing the screw terminal block, the 24 VDC power indicator, the Omron CP1W-Series model label, the 12 input channel LEDs and the 8 NPN output channel LEDs along the top edge

Omron CP1W-20EDT — CP1W I/O Expansion, 12-in / 8-out NPN

SKU: CP1W-20EDT

USD 53.00

CP1W 20-point I/O expansion, 12 DC inputs + 8 NPN transistor outputs, 0.3 A. In stock.

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Product Overview

The Omron CP1W-20EDT is a 20-point I/O expansion unit for the CP1E, CP1L and CP1H PLC families It is manufactured by Omron Corporation. Hengyixin Automation stocks this I/O expansion unit in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports. Specifications on this page were checked against Omron's CP-series I/O Unit documentation.

The unit adds 12 24 VDC inputs and 8 NPN (sinking) transistor outputs to a CP1-series CPU. Inputs are 24 VDC with 5 mA typical current and 0 to 32 ms ON/OFF delay.

Up to three CP1W expansion units can sit on a CP1E N30 / N40 / N60 or NA20 CPU. Key specs: I/O Points 20 points total: 12 inputs + 8 outputs; Input Voltage / Current 24 VDC +10/-15%; 5 mA typical; Input ON / OFF Delay 0 to 32 ms (default 8 ms); Output Type NPN (sinking) transistor, 4.5-30 VDC; Output Rating 0.3 A per point, 0.9 A per common; Output ON / OFF Delay 0.1 ms max ON / 1 ms max OFF; Connector Screw terminal block (removable); Compatible CPUs CP1E N30/N40/N60/NA20, CP1L, CP1H, CP2E.

Key Features

  • CP1W 20-point I/O expansion: 12 24 VDC inputs + 8 NPN (sinking) transistor outputs
  • Outputs 4.5 to 30 VDC at 0.3 A per point, 0.9 A per common, 0.1 ms ON delay
  • Screw terminal block, 5 V supplied from the backplane bus, 86 x 90 x 50 mm, 300 g
  • Compatible with CP1E N30 / N40 / N60 / NA20, CP1L, CP1H and CP2E CPUs
  • SKU: CP1W-20EDT
  • Series: Omron CP1W-series Expansion I/O Unit
  • Voltage: 24 VDC
  • I/O: 20 points

Best-Fit Applications

  • Mid-size packaging line where the CP1L-M40DR-A needs more 24 VDC inputs and NPN outputs than the 40 built-in points
  • Spare I/O drop-in for a CP1W expansion rack where the previous unit failed and the wiring is NPN (sinking)
  • Conveyor control panel using a CP1W-20EDT plus a CP1W-8ER relay output unit for the diverter solenoids

Buying Checklist

  • Pick the CP1W-20EDT for a 20-point CP1W expansion with NPN (sinking) transistor outputs.
  • Pick the CP1W-20EDT1 instead when the cabinet calls for PNP (sourcing) outputs to match a PNP sensor field.
  • Pick the CP1W-20EDR1 instead when the load is a relay coil or a small solenoid and contact outputs are wanted.

Technical Specifications

Manufacturer Omron Corporation (Japan)
Series Omron CP1W-series Expansion I/O Unit
Model / SKU CP1W-20EDT
I/O Points 20 points total: 12 inputs + 8 outputs
Input Voltage / Current 24 VDC +10/-15%; 5 mA typical
Input ON / OFF Delay 0.1 to 1 ms per the Omron product page; some CP1W literature quotes a 0-32 ms settable range with an 8 ms default, so confirm against the CP Series datasheet for your CPU configuration
Output Type NPN (sinking) transistor, 4.5-30 VDC
Output Rating 0.3 A per point, 0.9 A per common
Output ON / OFF Delay 0.1 ms max ON / 1 ms max OFF
Connector Fixed screw terminal block (not removable)
Compatible CPUs CP1E N30/N40/N60/NA20, CP1L, CP1H, CP2E
Dimensions (W x H x D) 86 × 90 × 50 mm; 300 g

Manufacturer documentation

Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.

FAQ for CP1W-20EDT

What is the difference between CP1W-20EDT and CP1W-20EDT1?
The CP1W-20EDT has NPN (sinking) outputs and the CP1W-20EDT1 has PNP (sourcing) outputs. Both have 12 24 VDC inputs and 8 0.3 A outputs. Pick the output polarity that matches the field wiring.
How many CP1W-20EDT units can a CP1L CPU host?
Up to three CP1W expansion units in total on a CP1L CPU (mix of I/O, analog and temperature units). The CP1L CPU also allows one CJ-series Special I/O or CPU Bus Unit through the CP1W-EXT01 adapter.
Does the CP1W-20EDT need a separate 24 VDC supply?
Inputs are powered from the field 24 VDC; outputs are powered from the same field 24 VDC. The unit's 5 V logic comes from the CP1-series backplane.
What is the input filter on the CP1W-20EDT?
0 to 32 ms ON/OFF delay, default 8 ms. Adjust in the PLC Setup to 0, 0.5, 1, 2, 4, 8, 16 or 32 ms depending on the noise in the panel.

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