Protective carton and identification label

The photo shows the controller inside its protective product carton. Because the unit itself is not visible in this view, the complete order number and package label should be checked against the purchase request before dispatch.

Q1. Why choose a 20-point compact CPU?

It provides a practical balance for small machines with a limited sensor and actuator count, reducing unused I/O and cabinet space.

Q2. What must be verified for relay outputs?

Confirm the field-load voltage, steady current and inrush current. Use an interposing relay or contactor when a load exceeds the CPU contact rating.

Q3. Can this CPU be used for a future expansion project?

Review the final I/O list, communications and expansion requirements first. If the machine may grow substantially, selecting a higher-point CPU can reduce later redesign.

Q4. What information helps identify a replacement?

Send the full order number, terminal photos, supply voltage, project backup and existing I/O list so the replacement can be checked accurately.

Q5. Where is CR20 most commonly applied?

It is best suited to compact OEM equipment, auxiliary systems and localized control duties with straightforward digital sequences.

Q6. Does the packaging photo confirm the condition of the controller inside?

No. The packaging image helps verify the outer carton and visible label only. The controller condition, accessories and exact order number should be confirmed separately before shipment.