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The LENZE EMZ9371BC is a compact, rugged keyboard panel designed as a local operator interface for LENZE drives, including the EPL, SMVector, and 8400 series. It enables manual control, parameter configuration, and status monitoring of connected drives via intuitive keypad operation and clear visual feedback. With a durable design and straightforward connectivity, this panel simplifies on-site drive setup, troubleshooting, and routine operation in industrial environments.
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Display & Input Features
- Display Type: 7-segment LED display (4 digits) for showing drive parameters, speeds, and fault codes.
- Indicators: 3 status LEDs (green for run, yellow for ready, red for fault) for quick visual status checks.
- Keypad: 6 membrane keys (▲/▼ for navigation, OK for confirmation, ESC for exit, F1/F2 for programmable functions) with tactile feedback.
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Electrical & Connectivity
- Connection: 7-pin M12 plug for direct connection to drive’s operator interface port (compatible with LENZE drive sockets).
- Power Supply: Derived from the drive (5VDC, max 50mA), no external power required.
- Communication: Proprietary interface for bidirectional data exchange with the drive (parameter read/write, control commands).
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Environmental & Physical Specifications
- Operating Temperature: 0°C to 50°C (32°F to 122°F).
- Storage Temperature: -20°C to 70°C (-4°F to 158°F).
- Humidity: 5%-95% RH (non-condensing).
- Protection Class: IP65 (front panel) for resistance to dust and water splashes.
- Dimensions: 60mm (W) × 40mm (H) × 25mm (D) (excluding connector).
- Weight: Approximately 80g.
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Simplified Drive Operation
- Intuitive keypad layout allows quick navigation through drive menus, parameter adjustment, and manual control (start/stop, speed setpoint changes).
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Direct Drive Integration
- Plug-and-play connection to LENZE drives via M12 connector eliminates complex wiring, reducing setup time.
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Durable Design
- IP65-rated front panel withstands industrial conditions (dust, moisture, and occasional splashes), ensuring reliability in harsh environments.
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Clear Status Feedback
- 4-digit LED display and color-coded status LEDs provide instant visibility of drive operation, fault codes, and parameter values.
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Cost-Effective Interface
- Offers a budget-friendly alternative to touchscreen HMIs for basic drive control needs, ideal for applications requiring local-only operation.
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Industrial Drive Control
- Used with LENZE EPL and 8400 series drives in conveyor systems, pumps, and fans for on-site speed adjustment and status checks.
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Machine Commissioning
- Facilitates initial drive setup (parameter configuration, motor tuning) during machine installation or maintenance.
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Troubleshooting
- Displays fault codes and real-time drive data (current, voltage) to quickly diagnose issues without additional tools.
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OEM Machinery
- Integrated into original equipment (packaging machines, mixers) to provide operators with local control over drive functions.
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Remote Enclosure Mounting
- Mounted in control cabinets or machine panels for convenient access to drive controls in hard-to-reach drive locations.
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Connection
- Ensure the M12 connector is fully seated and locked to prevent intermittent communication.
- Use only LENZE-specified cables (length ≤5m) to maintain signal integrity.
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Compatibility
- Verify compatibility with the target drive model (check LENZE drive manuals for supported operator panels).
- Update drive firmware to the latest version if the panel fails to communicate.
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Installation
- Mount the panel in a location protected from extreme temperatures, direct sunlight, or chemical exposure.
- Use the provided gasket for IP65 protection; tighten mounting screws evenly to maintain seal integrity.
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Operation
- Avoid pressing multiple keys simultaneously to prevent input errors.
- Refer to the drive manual for parameter ranges when adjusting settings to avoid drive damage.
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Maintenance
- Clean the keypad with a dry, lint-free cloth; avoid harsh chemicals that may degrade the membrane.
- Inspect the connector periodically for corrosion or damage, especially in high-humidity environments.

The structure and details of the product:

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