Part of the Omron CP-Series Compact PLCs series — see the full model table, lifecycle status and replacement parts.
Omron CP1W-16ER — 16-Point Relay Output Expansion
SKU: CP1W-16ERUSD 60.00
Omron CP1W-16ER 16-point relay output expansion for CP1E/CP1L/CP1H, 2 A per point, 5-250 VAC. In stock, China shipping.
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Product Overview
The Omron CP1W-16ER is a 16-point relay output expansion unit for the CP1W I/O family, manufactured by Omron Corporation. Hengyixin Automation stocks this relay in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.
The unit adds sixteen SPST-NO relay outputs to a CP1E, CP1L or CP1H CPU. Each output switches 2 A at 5 to 250 VAC or 5 to 30 VDC, with a 15 ms ON/OFF time. Relay service life is 150,000 operations on a resistive 24 VDC load and 20 million mechanical.
Current draw is 5 V at 0.042 A and 24 V at 0.090 A. Body is 86 x 90 x 50 mm, 280 g. Each CPU accepts up to three expansion units in any mix. For 24 inputs and 16 PNP transistor outputs on the same I/O bus, pick the CP1W-40EDT1. For 32 PNP outputs at 0.3 A, pick the CP1W-32ET1.
Key Features
- 16-point SPST-NO relay output expansion for CP1E, CP1L and CP1H CPUs
- 2 A per point at 5-250 VAC or 5-30 VDC, 15 ms ON/OFF, 150,000 electrical operations
- Mounts on CPU right-side expansion port, up to 3 expansion units per CPU
- 5 V 0.042 A and 24 V 0.090 A current draw, 86 x 90 x 50 mm, 280 g, DIN rail mount
- SKU: CP1W-16ER
- Series: Omron CP1W I/O expansion unit
- I/O: 16 I/O
Best-Fit Applications
- Adding 16 relay-driven solenoid valves to a CP1L-M40DR-A on a multi-station filling skid in a plant
- Spare expansion for a CP1E-N40DR-D retrofit where the original 16 outputs are full and the next 16 must switch 230 VAC loads
- Pairing with the CP1W-40EDT1 on the same CPU so the relay outputs switch mains voltage while the inputs and transistor outputs drive 24 VDC devices
Buying Checklist
- Pick the CP1W-16ER for a 16-point relay output expansion on a CP1E, CP1L or CP1H CPU.
- Pick the CP1W-40EDT1 instead when the cabinet needs 24 inputs and 16 PNP transistor outputs at 0.3 A per point.
- Pick the CP1W-8ET1 instead when only 8 PNP transistor outputs are needed and the second expansion slot must stay free.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron CP1W I/O expansion unit |
| Model / SKU | CP1W-16ER |
| Module Type | Digital output, relay SPST-NO |
| Output Points | 16 outputs, no inputs |
| Contact Rating | 2 A per point at 5-250 VAC or 5-30 VDC |
| Min. Switchable Load | 5 VDC, 10 mA |
| Response Time | 15 ms ON/OFF max |
| Relay Service Life | 150,000 operations electrical (resistive 24 VDC); 20 million mechanical |
| Current Consumption | 5 VDC 0.042 A; 24 VDC 0.090 A |
| Compatible CPUs | CP1E (E30/40/60, N30/40/60, S30/60), CP1L, CP1H |
| Dimensions (W x H x D) | 86 × 90 × 50 mm; 280 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-16ER
Which Omron CPUs does the CP1W-16ER work with?
CP1E E30/40/60, N30/40/60 and S30/60 CPUs; CP1L M, L and EM/EL types; and CP1H X, Y and XA types. The CP1E E14/20, N14/20 and slim N□□S CPUs do not support expansion units at all.
How many CP1W-16ER units can one CPU take?
Up to three expansion units in any mix of CP1W digital, analog and communication modules. The total is constrained by the 5 V and 24 V current budget on the rack power supply, not by the expansion port itself.
What is the relay life on the CP1W-16ER?
150,000 operations on a resistive 24 VDC load and 20 million operations mechanical, per the CP1W-16ER datasheet. Inductive AC loads at cos phi = 0.4 drop the electrical life to about 100,000 operations.
Does the CP1W-16ER need configuration in CX-Programmer?
No. CP1W digital I/O units are auto-recognised by the CPU on power-up and the I/O addresses are assigned by slot position. The expansion unit shows up in the CX-Programmer I/O table without manual setup.
Can the CP1W-16ER switch 230 VAC solenoid coils?
Yes, up to 2 A per point at 250 VAC. For inductive AC loads, fit an RC snubber across the coil to extend relay life past the datasheet minimum.
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