M91-T4-R6-ZK1 UNITRONICS Central control module

Description

M91-T4-R6-ZK1 UNITRONICS Central control module

Product Dimensions：

Product Description

The M91-T4-R6-ZK1 features a monochrome STN LCD display with a resolution of 128 x 64 pixels and a 15-key membrane keypad. It integrates digital and analog I/O directly on the back of the controller, eliminating the need for separate modules in basic applications. The “ZK1” designation typically refers to specialized regional or customized labeling/firmware versions, but it maintains the core hardware architecture of the standard M91 series, supporting ladder logic programming and HMI screen design within a single software environment (U90 Ladder).

Product Parameters

• Display: 128 x 64 pixel STN LCD, backlit (yellow-green)

• Keypad: 15 keys, including programmable function keys and numeric pad

• Digital Inputs: 12 inputs (24VDC), including support for high-speed counters (up to 10kHz)

• Analog Inputs: 2 inputs (10-bit resolution), supporting 0-10V, 0-20mA, or 4-20mA

• Relay Outputs: 6 relay outputs (250VAC / 30VDC, 5A max resistive load)

• Memory: 36K Ladder Logic capacity; 1024 registers (Integers), 256 Bits, 64 Timers

• Communication: 1 x RS232/RS485 port (supports MODBUS RTU Master/Slave)

• Power Supply: 24VDC

• Protection Rating: IP65/NEMA4X (Front panel when mounted)

Product Advantages

• Space Saving: Integrating the PLC and HMI into one chassis significantly reduces the footprint inside the control cabinet and reduces wiring complexity.

• Cost Efficiency: Reduces hardware costs by eliminating the need for separate display units and communication cables between the PLC and HMI.

• Unified Programming: Both the logic and the screen interface are developed in the U90 Ladder software, ensuring seamless tag integration and faster development cycles.

• High-Speed Capabilities: Despite its size, it supports high-speed counting and shaft-encoding, making it suitable for simple motion sensing or flow metering.

• Rugged Design: The front panel is built to withstand industrial environments, offering protection against water and dust.

Important Considerations

• Memory Limits: This is a compact controller; ensure your ladder program and screen complexity do not exceed the 36K memory limit.

• Relay Lifespan: While relay outputs are versatile, they have a finite mechanical life. For high-frequency switching applications, consider using external solid-state relays or a transistor-output PLC model.

• Serial Port Configuration: The communication port is shared between RS232 and RS485. Ensure the internal jumpers are set correctly for your specific communication protocol before powering on.

• Analog Resolution: The 10-bit analog inputs are sufficient for general level or pressure sensing but may not be suitable for high-precision laboratory measurements.

Product Applications

The M91-T4-R6-ZK1 is ideal for localized machine control and OEM equipment, such as:

• Water Treatment: Controlling small pumping stations, chlorination systems, and simple filtration units.

• HVAC Systems: Managing air handling units, boiler control, and environmental monitoring.

• Packaging Machinery: Controlling simple bagging machines, labeling equipment, and conveyor junctions.

• Food & Beverage: Small-scale pasteurization control, mixing vats, and oven temperature management.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：