Tverter K1 Series Manual Pdf 2021 |verified| Jun 2026
| Parameter | Value | | :--- | :--- | | | 380–460 VAC (±10%) | | Output Voltage (3-Phase) | 0 to Input Voltage | | Control Method | Sine Wave PWM (Pulse Width Modulation) | | Protection Functions | Over-voltage (OV), Over-current (OC), Over-heat (OH), under-voltage (LV), phase loss, short circuit, ground fault | | Frequency Range | 0 to 400 Hz (Programmable) | | Frequency Accuracy | Digital: 0.01% of max frequency / Analog: 0.4% of max frequency |
Typically constructed with an IP20 open-chassis framework or standard metal heatsink plate meant for closed-panel installation. Safety and Pre-Installation Requirements
| Fault Code | Display | Meaning | Probable Causes | Recommended Actions | | :--- | :--- | :--- | :--- | :--- | | | OC-A | Over Current during Acceleration | 1. Acceleration time set too short. 2. Inappropriate V/F pattern. 3. Motor capacity exceeds drive rating. | 1. Extend acceleration time. 2. Select optimal V/F pattern. 3. Use a larger rated drive. | | OC-d | OC-d | Over Current during Deceleration | 1. Deceleration time too short. 2. Load inertia too high. 3. Braking settings incorrect. | 1. Extend deceleration time. 2. Add an external braking resistor. 3. Adjust braking parameters. | | OC-C | OC-C | Over Current during Constant Speed | 1. Load changes excessively. 2. Input power fluctuates. 3. Motor or cable short circuit. | 1. Inspect mechanical load. 2. Install a line reactor. 3. Check motor and cables. | | OC-S | OC-S | Over Current during Starting | 1. Motor short-circuited. 2. Motor has ground fault. 3. Drive transistor module damaged. | 1. Check and repair motor. 2. Repair grounding. 3. Replace drive. | | CPF | CPF | CPU Software Error | 1. High electronic noise (EMI). 2. Internal program error. | 1. Install RC suppressor on contactor/brake coils. 2. Cycle power; if persists, contact support. | | EPR | EPR | EEPROM Error | 1. EEPROM is damaged or has failed. 2. Parameter write error. | 1. Try resetting to factory defaults. 2. If recurring, EEPROM chip needs replacement. | | OV | OV | Over Voltage | 1. Deceleration time too short. 2. Load inertia too large. 3. Input voltage is too high. | 1. Extend deceleration time. 2. Add a dynamic braking resistor. 3. Check and correct input voltage. | | LV/LV-C | LV or LV-C | Under Voltage | 1. Input voltage too low or unstable. 2. Power supply issue. | 1. Check input voltage. 2. Use longer acceleration time. 3. Install an input reactor. | | OH | OH | Heat Sink Over-Heat | 1. Ambient temperature too high. 2. Ventilation poor. 3. Fan failure or blocked airflow. | 1. Improve ventilation and cooling. 2. Clean heat sink and check fan. 3. Lower ambient temperature. | | OH1 | OH1 | Braking Resistor Overload | 1. Deceleration time too short. 2. Frequent run/stop cycles. 3. Load inertia too large. | 1. Prolong deceleration time. 2. Prolong run/stop cycle. 3. Reduce braking load. |
The K1 series was developed as a high-performance, digital inverter for motor control, prized for its reliability in demanding environments. However, finding its history today is a digital scavenger hunt. Because the K1 drives , most of their technical life is recorded in physical booklets that have since been lost or digitized only by dedicated community members. Over the years, the drive was sold under several names: Taian Electric : The original manufacturer. Motortronics : Held exclusive US rights for a time.
: Very common results for "K1 manual" from 2023–2025. tverter k1 series manual pdf 2021
High-voltage industrial hardware carries inherent risks. The 2021 manual update reiterates structural safety baselines to prevent equipment damage or personal injury: T-Verter K1 Seires VSD | PLCtalk - Interactive Q & A
While the content is there, the presentation varies in quality.
T-Verter K1 Series Manual: A Comprehensive Guide (2021 Edition)
Regular maintenance ensures the longevity of your Tverter K1 drive: | Parameter | Value | | :--- |
(now part of TECO) before the internet became a standard for document archiving. Rebranding History In the United States, Motortronics
These drives are commonly found in applications including:
is available on Scribd, detailing installation, wiring, and safety procedures. Quick Start & Setup
The inverter has a series of function codes (parameters) that configure its behavior. Here are some of the most common ones: Motor capacity exceeds drive rating
| Fault Code | Description | Likely Cause & Solution (from manual) | | ---------- | -------------------------------- | ------------------------------------------------------- | | | Overcurrent during acceleration | Short circuit at motor terminals; increase accel time. | | OU | Overvoltage during deceleration | Braking resistor too small; extend decel time (P0.05). | | SC | Short circuit (module fault) | Check motor insulation; replace IGBT module. | | OL | Motor overload | Increase P1.02 (motor current) slightly; reduce load. | | LU | Low voltage (undervoltage) | Check input supply; voltage sag. | | OH | Overheat (heatsink >85°C) | Clean fans; improve ventilation. | | CE | RS485 communication error | Check wiring and P9.00 (baud rate mismatch). |
). Never connect the primary source power directly to output terminals
: High-efficiency microprocessor-driven digital scalar control.
While the original T-Verter hardware is a legacy product, the "2021" search often leads users to a modern namesake: the (often associated with brands like TOMATECH or Shanghai Step Electric ). These newer K1 manuals provide the updated protocols needed for modern automation, including: