Omron CJ1W-DA08V CJ Series Analog Output Unit

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Производитель: Omron
Номер продукта: CJ1W-DA08V
Страна происхождения:Япония
Тип продукта: Analog Output Modules
Оплата: Т/Т, Western Union
Вес: 2000г
Размеры: 110 mm x 90 mm x 31 mm
Порт отгрузки: Сямынь
Гарантия: 12 месяцев

Description

Configured for high-density voltage command applications, the Omron CJ1W-DA08V delivers eight independent analog output channels within a single-slot CJ-series form factor. This module serves as a critical interface between Omron CJ1G, CJ1H, or CJ2M CPU controllers and external field hardware such as variable frequency drives (VFDs), control valves, and actuators. Built-in configuration parameters permit localized range adjustments and scaling directly in the PLC memory map, optimizing loop performance and eliminating the need for external signal conditioners.

Key Features

Eight Independent Outputs: Provides high-density voltage command capabilities within a single PLC rack slot.
Selectable Signal Ranges: Individual configuration for each channel supporting 1 to 5 V, 0 to 5 V, 0 to 10 V, and -10 to 10 V.
Flexible Performance Modes: Configurable resolution settings of 1/4000 (standard mode) or 1/8000 (high-resolution mode).
Synchronized Conversion Rates: Achieves a 1 ms per point conversion speed in standard mode, and up to 250 us per point in high-speed mode.
Removable Terminal Block: Simplifies initial cabinet pre-wiring and facilitates rapid hot-swapping during maintenance cycles.

Target Applications

VFD Speed Control: Direct speed referencing for variable frequency drives via standard 0-10 V or 1-5 V analog inputs.
Proportional Valve Positioning: Dynamic control of hydraulic and pneumatic proportional valves in positioning loops.
HVAC Damper Actuation: Multi-channel modulation of air volume dampers and thermal control elements.
Test Bench Signal Simulation: Generating precise voltage references for automated test systems.

Technical Specifications

Parameter	Value / Specification
Manufacturer	Omron Industrial Automation
Model Number	CJ1W-DA08V
Output Channels	8 Voltage Outputs
Output Voltage Ranges	1 to 5 V, 0 to 5 V, 0 to 10 V, -10 to 10 V
Resolution Modes	1/4000 (Standard), 1/8000 (High-Resolution)
Conversion Speed	1 ms/point (at 1/4000), 250 us/point (at 1/8000)
Accuracy at 25 degC	+/-0.3% of Full Scale
Internal Current Consumption	140 mA at 5 VDC
External Power Requirement	24 VDC (+10% / -15%), 140 mA maximum
Connection Type	M3 Removable Terminal Block
Unit Allocation	1 Special I/O Unit Number
Country of Origin	Japan
Shipping Weight (Calculated)	0.35 kg
Package Dimensions (Calculated)	110 mm x 90 mm x 31 mm

Empirical Engineering Insights

Alternative Models & Compatibility

The CJ1W-DA08V is designed strictly for voltage output architectures. If your application demands loop-powered current outputs (e.g., 4-20 mA), you must utilize the CJ1W-DA08C companion module. Both modules occupy a single-slot footprint on CJ1 and CJ2 backplanes and use similar data memory allocations, simplifying engineering conversions during retrofits.

Application Pitfalls & Engineering Notes

Note that resolution and conversion speeds are system-locked. Setting the conversion resolution to 1/4000 restricts the conversion speed to 1 ms per point. Attempting to force a 250 us speed configuration within PLC memory while maintaining a 1/4000 resolution limit will generate an I/O configuration error. Additionally, ensure the external 24 VDC power supply is turned on before or simultaneously with the PLC CPU; failing to do so may register an output error flag on startup.

Commissioning & Wiring Tips

To mitigate electrostatic and electromagnetic interference in high-precision loops, always use twisted-pair shielded control cables. Terminate the shield exclusively to the functional ground (FG) terminal on the PLC panel side, leaving the field-device end floating. This prevents harmful ground loops from creating artificial offsets in your 0-10 V signals.

Installation Guidelines

CRITICAL WARNING:

De-energize the entire PLC system and any connected field instruments before sliding the CJ1W-DA08V module onto the DIN rail or attaching/removing the terminal block. Hot-plugging this unit or its external power terminals can result in permanent damage to internal bus transceivers or erratic control signals to downstream actuators.

Backplane Mounting: Align the module hooks with the lock holes on the adjacent CJ-series unit and slide the module firmly in place. Pivot the blue locking sliders at the top and bottom forward until they click.

External Power Wiring: Connect a clean 24 VDC source to the dedicated power terminals on the removable block. Ensure the power routing is fused and isolated from high-power inductive switching circuits.

Signal Connection: Torque the field signal wires to the M3 terminals, keeping analog wiring physically separated from high-voltage AC cables inside the wire trunking.

Key Features:

#Analog Output Modules #Omron CJ Series

Can the CJ1W-DA08V output current signals like 4-20mA?

No. The CJ1W-DA08V is designed exclusively for voltage outputs. For current outputs, use the companion CJ1W-DA08C module.

Why is the module showing an analog conversion error in the PLC DM area?

This usually indicates a conflict between resolution and conversion speed configurations. Speed and resolution are linked; selecting 1/8000 resolution forces the 250 us conversion speed.

Where should the cable shield be grounded for the analog signals?

Connect the shield only to the functional ground terminal on the PLC side. Keep the field-side shield floating to avoid ground loop current interference.

Глобальная экспресс-доставка

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Omron CJ1W-DA08V CJ Series Analog Output Unit