Omron ZEN-10C1AR-A-V2

The Omron ZEN-10C1AR-A-V2 is a “Logic Relay” or “Nano-PLC.” It is designed to bridge the gap between traditional hard-wired relay logic and full-scale PLCs. It is ideal for small automation tasks like lighting control, pump sequencing, or basic machine safety.

The “V2” designation indicates the second-generation model, which includes expanded functionality like better precision for timers and counter-converters.

1. Catalog Number Breakdown

Understanding the specific codes in the model name is critical for correct wiring:

2. Key Technical Specifications

The ZEN is a “self-contained” unit, meaning you do not necessarily need a computer to program it.

• Inputs: 6 AC Inputs (100V–240V).

   

• Outputs: 4 Relay Outputs (up to 8A per point, 250V AC).

• Memory: Internal EEPROM stores the program; an optional ZEN-ME01 Memory Cassette can be used to copy programs between units.

• Real-Time Clock: Built-in with a calendar (ideal for weekly/monthly scheduling).

   

• Dimensions: Very compact (70mm wide), equivalent to about 4 standard circuit breakers.

   

3. Wiring and Physical Layout

Because this model is the “A” (AC) version, the inputs use the same voltage as the power supply.

• L / N Terminals: Main AC power input.

• I0 – I5: Input terminals. Note that these are activated by applying AC voltage (Phase) to the terminal.

• Q0 – Q3: Relay output terminals. Since these are “Dry Contacts,” you must provide the voltage you wish to switch (e.g., jump “L” to the common of Q0).

4. Programming Methods

The ZEN series is famous for its flexibility in how it can be programmed:

1. On-Device Programming: You can write the entire Ladder Logic program using the 8 buttons on the front and the small LCD. It is tedious for large programs but perfect for field adjustments.

2. ZEN Support Software: Using the ZEN-SOFT01-V4 software and a specialized ZEN-CIF01 cable, you can program the unit via a PC, which allows for easier documentation and simulation.

5. Troubleshooting Indicators

• LCD Backlight: Flashes when there is a system error or when the battery (for the clock) is low.

• Input/Output Status: The LCD shows a grid representing the state of I0–I5 and Q0–Q3. If a block is solid, that point is active.

• Password Protection: If you see a “Password” prompt, the program is locked. There is no master bypass; if the password is lost, the unit must be cleared (reset to factory), which deletes the program.