Executing complex automation tasks with precise positioning control, the Omron CQM1-CPU43-EV1 serves as an integrated central processing unit designed for the Sysmac CQM1 platform. This controller integrates built-in high-speed counting and pulse output features directly onto the processor board, eliminating the need for dedicated external positioning modules in compact machinery configurations. Operating on a stored program system, it manages up to 256 I/O points across 11 expansion units while maintaining low execution cycle times for high-speed industrial operations.
| Parameter | Specification |
|---|---|
| Manufacturer | Omron |
| Model | CQM1-CPU43-EV1 |
| Maximum I/O Capacity | 256 points (Maximum of 11 expansion units) |
| On-board CPU I/O | 16 points (1 word) |
| Current Consumption | 980 mA at 5 VDC |
| Instruction Execution Speed | Basic instructions: 0.50 to 1.50 microseconds; Special (MOV): 24 microseconds |
| User Memory | Ladder diagram processing; 6,144 words of user Data Memory (DM) plus 512 read-only words |
| Pulse Inputs | Encoder Inputs Phase A, Phase B (5 mA typical); Pulse Input Phase Z (12 mA typical) |
| Pulse Input Operating Voltage | 24 VDC (plus/minus 10%) |
| Pulse Output Frequency | 50 kHz max. (NPN open collector, 30 mA, 5 to 24 VDC plus/minus 10%) |
| Battery Backup Life | 5 years typical (maintain clock and retentive memory areas) |
| Shipping Weight | 2.5 kg |
| Terminal Function | Electrical Parameters | Signal Processing Logic |
|---|---|---|
| High-Speed Input A / B | 24 VDC, 5 mA | ON voltage: 20.4 VDC minimum; OFF voltage: 4.0 VDC maximum |
| High-Speed Input Z | 24 VDC, 12 mA | ON voltage: 20.4 VDC minimum; OFF voltage: 4.0 VDC maximum |
| Pulse Output CW / CCW | 5 to 24 VDC, 30 mA max. | NPN Open Collector; Leakage: 0.1 mA max.; Residual Voltage: 0.4 V max. |
The CQM1-CPU43-EV1 serves as an upgraded alternative to the standard CQM1-CPU41-E and CPU42-E units, which do not offer integrated dual-channel 50 kHz high-speed counter inputs or physical pulse outputs on the main board. When swapping a legacy CQM1 processor with the CPU43-EV1, verify that your ladder logic is reconfigured to use the expanded system DM area parameters (DM 6611 and DM 6612) to properly initialize the pulse input settings and avoid initialization errors during startup.
When running high-speed positioning operations with a stepping motor driver connected to the pulse outputs, the maximum stable switching frequency is reduced from 50 kHz to 20 kHz due to back-EMF and torque load constraints. Additionally, ensure that your external 24 VDC power supply is highly regulated; voltage dips below 20.4 VDC will prevent the Phase A/B encoder inputs from registering state transitions, resulting in tracking slippage and axis positioning faults.
Always use high-quality shielded twisted-pair (STP) cabling for all high-speed counter (Phase A, B, and Z) inputs. Ground the cable shields at the PLC ground terminal only; connecting shields at both ends creates ground loops that inject high-frequency electrical noise, distorting the 50 kHz pulse trains. To prevent inductive kickback from damage to the internal NPN open-collector transistors, ensure flyback diodes are installed across external inductive DC loads connected to the auxiliary PLC outputs.
CRITICAL WARNING
Disconnect all power sources to the PLC rack before attempting hardware installation, module replacement, or wiring configuration. Failure to fully de-energize the assembly can cause fatal shock hazards, localized electrical arcing, or severe damage to the sensitive integrated pulse input circuitry of the CPU board.
Mount the CPU unit securely onto the backplane or DIN rail, ensuring the unit locks firmly into place using the integrated chassis sliders.
Ensure a fresh backup battery is plugged into the CPU connector; when replacing batteries during operation, complete the exchange within 5 minutes of removal to prevent RAM program loss.
Wire the 24 VDC power supply to the input common, keeping power cables separated from high-voltage motor lines to prevent cross-talk on critical inputs.
Global Express Shipping
Returns & Warranty
Manufacturer: Omron
Product No.: CQM1-CPU43-EV1
Country of origin:Japan
Product Type: PLC CPU Modules
Payment: T/T, Western Union
Weight: 2500g
Shipping port: Xiamen
Warranty: 12 months
Executing complex automation tasks with precise positioning control, the Omron CQM1-CPU43-EV1 serves as an integrated central processing unit designed for the Sysmac CQM1 platform. This controller integrates built-in high-speed counting and pulse output features directly onto the processor board, eliminating the need for dedicated external positioning modules in compact machinery configurations. Operating on a stored program system, it manages up to 256 I/O points across 11 expansion units while maintaining low execution cycle times for high-speed industrial operations.
| Parameter | Specification |
|---|---|
| Manufacturer | Omron |
| Model | CQM1-CPU43-EV1 |
| Maximum I/O Capacity | 256 points (Maximum of 11 expansion units) |
| On-board CPU I/O | 16 points (1 word) |
| Current Consumption | 980 mA at 5 VDC |
| Instruction Execution Speed | Basic instructions: 0.50 to 1.50 microseconds; Special (MOV): 24 microseconds |
| User Memory | Ladder diagram processing; 6,144 words of user Data Memory (DM) plus 512 read-only words |
| Pulse Inputs | Encoder Inputs Phase A, Phase B (5 mA typical); Pulse Input Phase Z (12 mA typical) |
| Pulse Input Operating Voltage | 24 VDC (plus/minus 10%) |
| Pulse Output Frequency | 50 kHz max. (NPN open collector, 30 mA, 5 to 24 VDC plus/minus 10%) |
| Battery Backup Life | 5 years typical (maintain clock and retentive memory areas) |
| Shipping Weight | 2.5 kg |
| Terminal Function | Electrical Parameters | Signal Processing Logic |
|---|---|---|
| High-Speed Input A / B | 24 VDC, 5 mA | ON voltage: 20.4 VDC minimum; OFF voltage: 4.0 VDC maximum |
| High-Speed Input Z | 24 VDC, 12 mA | ON voltage: 20.4 VDC minimum; OFF voltage: 4.0 VDC maximum |
| Pulse Output CW / CCW | 5 to 24 VDC, 30 mA max. | NPN Open Collector; Leakage: 0.1 mA max.; Residual Voltage: 0.4 V max. |
The CQM1-CPU43-EV1 serves as an upgraded alternative to the standard CQM1-CPU41-E and CPU42-E units, which do not offer integrated dual-channel 50 kHz high-speed counter inputs or physical pulse outputs on the main board. When swapping a legacy CQM1 processor with the CPU43-EV1, verify that your ladder logic is reconfigured to use the expanded system DM area parameters (DM 6611 and DM 6612) to properly initialize the pulse input settings and avoid initialization errors during startup.
When running high-speed positioning operations with a stepping motor driver connected to the pulse outputs, the maximum stable switching frequency is reduced from 50 kHz to 20 kHz due to back-EMF and torque load constraints. Additionally, ensure that your external 24 VDC power supply is highly regulated; voltage dips below 20.4 VDC will prevent the Phase A/B encoder inputs from registering state transitions, resulting in tracking slippage and axis positioning faults.
Always use high-quality shielded twisted-pair (STP) cabling for all high-speed counter (Phase A, B, and Z) inputs. Ground the cable shields at the PLC ground terminal only; connecting shields at both ends creates ground loops that inject high-frequency electrical noise, distorting the 50 kHz pulse trains. To prevent inductive kickback from damage to the internal NPN open-collector transistors, ensure flyback diodes are installed across external inductive DC loads connected to the auxiliary PLC outputs.
CRITICAL WARNING
Disconnect all power sources to the PLC rack before attempting hardware installation, module replacement, or wiring configuration. Failure to fully de-energize the assembly can cause fatal shock hazards, localized electrical arcing, or severe damage to the sensitive integrated pulse input circuitry of the CPU board.
Mount the CPU unit securely onto the backplane or DIN rail, ensuring the unit locks firmly into place using the integrated chassis sliders.
Ensure a fresh backup battery is plugged into the CPU connector; when replacing batteries during operation, complete the exchange within 5 minutes of removal to prevent RAM program loss.
Wire the 24 VDC power supply to the input common, keeping power cables separated from high-voltage motor lines to prevent cross-talk on critical inputs.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Japan
|
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