Derivative Action in PID Control Without Noise Problems
Learn what derivative action contributes to a PID loop, why it can amplify measurement noise and setpoint changes, and how filtering, sampling, and staged tests make D tuning safer.
Manufacturer: Lenze
Product No.: EMZ8201BB
Country of origin:Germany
Product Type: Variable frequency drives
Barcode: 85044095
Payment: T/T, Western Union
Weight: 100g
Dimensions: 7,60cm x 12,70cm x 10,20cm
Shipping port: Xiamen
Warranty: 12 months
The EMZ8201BB (EMZ8201BB) is a dedicated plug-in keypad operator terminal designed for the Lenze 8200-series (including 8200 vector and 8200 motec) frequency inverters. This interface module is an essential tool for on-site commissioning, parameterization, and real-time diagnostics of industrial motor drives. In B2B environments such as automated manufacturing cells, water treatment plants, and conveyor systems, the EMZ8201BB allows maintenance engineers to perform rapid adjustments and monitor drive status directly at the machine level without the need for a laptop. Featuring a clear liquid crystal display and an intuitive 8-button navigation layout, this terminal epitomizes Lenze’s commitment to user-centric industrial design. Although the 8200-series has entered its phase-out stage, the EMZ8201BB remains a critical legacy support component for ensuring the longevity and serviceability of existing automation infrastructure.
The EMZ8201BB is architected for "hot-plug" functionality, allowing it to be connected or removed while the inverter is powered, facilitating quick diagnostics across multiple drives. The hardware features a high-contrast display that provides real-time visualization of setpoint frequencies, actual motor speeds, and detailed error codes. The terminal is designed to plug directly into the standard AIF (Automation Interface) slot on the front of the 8200-series drives. Beyond simple monitoring, the unit includes an integrated memory function that can store and transfer complete parameter sets from one inverter to another, significantly reducing the time required for device replacement or mass commissioning of identical drive setups. Its ultra-lightweight 0.10 kg build and compact 7.60 x 12.70 x 10.20 cm dimensions make it an ideal portable tool for service technicians.
| Attribute | Specification Details |
| Model | EMZ8201BB |
| Brand | Lenze |
| Origin | Germany |
| Product Range | 8200-series (Vector / Motec) |
| Module Type | Keypad Operator Terminal |
| Interface | AIF (Automation Interface) |
| Display Type | LCD with Status Icons |
| Weight | 0.10 kg |
| Dimensions | 7.60 x 12.70 x 10.20 cm |
| Product Status | Phase-Out |
| Commodity Code | 85044095 |
| ECCN | N |
Can the EMZ8201BB be used to copy parameters between different power ratings in the 8200-series?
Yes. The terminal can store a parameter set from one 8200-series drive and upload it to another. However, after transferring to a drive with a different power rating, you must manually update the motor-specific data (e.g., rated current, power factor) to ensure the vector control remains accurate.
Does this terminal support password protection for drive settings?
The EMZ8201BB allows you to access and modify the password parameters (C0094) of the 8200-series drives. Once a password is set, the keypad will prompt for the code before allowing any critical parameter adjustments, preventing unauthorized changes to the machine's configuration.
Is it possible to mount this terminal on a cabinet door?
The EMZ8201BB is a direct-plug module. For cabinet door mounting, a separate remote mounting kit (such as the E82ZBB) is required, which includes a cable and frame to extend the connection from the drive to the exterior of the enclosure.
To install the EMZ8201BB, remove the protective cover from the AIF slot on the 8200-series inverter and press the terminal firmly into place until the locking tabs engage. If using the terminal for the first time, use the "Disp" button to toggle between actual frequency, output current, and motor load to verify the drive's operational status. When using the copy function to transfer data, ensure the target drive is in an "Inhibit" state (motor stopped) to prevent communication errors during the write process. For long-term installations in high-vibration environments, verify that the keypad is seated correctly to maintain a reliable electrical connection with the interface pins. If the display shows "OFF-P" upon connection, check that the 24V internal or auxiliary supply to the inverter control terminals is active.
Global Express Shipping
Returns & Warranty






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 .
| Color pattern |
White
|
| Country of origin |
Germany
|