Toshiba DICW01G031 | 3-Phase AC Inverter Drive · 1HP 200V Class In Stock

Description

Product Introduction

If you are trying to squeeze a variable speed drive into a control panel that is already bursting at the seams, the Toshiba DICW01G031 is the answer. This unit belongs to the VF-S11 series, which is famous for its “slim” design—only 68mm wide for this power rating. It takes standard 3-phase 200V input and converts it to a variable frequency output to control motor speed smoothly.What makes the DICW01G031 stand out is its versatility. It supports both V/f control and sensorless vector control, meaning you get high torque at low speeds without needing an encoder. It’s rated for 0.75 kW (1 HP), which is the sweet spot for small conveyors, fans, and packaging machines. Also, it comes with a built-in braking transistor, so you don’t need to buy an external brake resistor for quick stops—just wire it up and go.

Key Technical Specifications

Installation & Wiring Guide

Phase 1: Preparation (Estimated Time: 15 mins)

1. Safety First: Ensure the main power is OFF. Even though it’s a small drive, the DC bus capacitors hold a lethal charge.
2. Tool Check: You need a Phillips screwdriver, wire strippers, and a multimeter.
3. Verify Parts: Check the nameplate. Ensure it says DICW01G031 and 200V Class. Using a 400V unit on a 200V line (or vice versa) will destroy it.

Phase 2: Removal of Old Drive (Estimated Time: 20 mins)

1. Label Wires: Label R/L1, S/L2, T/L3 (Input) and U/T1, V/T2, W/T3 (Output). Also label the control terminals (FWD, REV, COM).
2. Disconnect: Remove power and motor wires.
3. Unmount: Unscrew the old drive from the DIN rail or panel.

Phase 3: Installation of New Drive (Estimated Time: 30 mins)

1. Mounting: Slide the DICW01G031 onto the DIN rail. It clicks into place. Ensure there is 10mm clearance above and below for airflow.
2. Power Wiring: Connect the 3-phase input to R/L1, S/L2, T/L3. Connect the motor to U/T1, V/T2, W/T3. Warning: Do not connect power to the output terminals (U, V, W)—this will instantly blow the inverter.
3. Grounding: Connect the ground wire (green/yellow) to the ground terminal. This is critical for noise reduction.
4. Control Wiring: Connect your start/stop signals to the control block. The default logic is usually “Sink” (NPN), but can be changed to “Source” (PNP) via a jumper or parameter if needed.

Phase 4: Power-up & Jog Test (Estimated Time: 20 mins)

1. Pre-Check: Use a multimeter in diode mode to check input/output terminals for shorts before applying power.
2. Power On: Apply power. The LED operator should light up and show “0.00”.
3. Parameter Reset: If the drive was used before, do a parameter clear (reset to factory default) to wipe old settings.
4. Jog Test: Set the frequency to 10Hz via the potentiometer or keypad. Press FWD. The motor should spin up smoothly. Listen for unusual noise.

Quality Control Process (SOP Transparency)

We treat these Toshiba drives with care because the plastic casings can be brittle if dropped.

1. Inbound Inspection: We check the date code on the label. We verify the model number DICW01G031 matches the internal part number. We look for signs of heat stress (discoloration) on the heatsink.
2. Live Functional Test: We mount the drive on a test bench. We connect a 0.75kW test motor. We run the motor at 10Hz, 30Hz, and 60Hz. We measure the output voltage balance (should be within 3% phase-to-phase).
3. Electrical Parameters: We measure the DC bus voltage (should be approx. 280-320 Vdc for 200V class). We check the charging resistor to ensure it hasn’t burned out (common in old stock).
4. Control Logic Test: We trigger the FWD and REV terminals to ensure the relay logic works. We test the analog input (0-10V) to ensure the speed follows the voltage.
5. Final Packaging: We pack it in an anti-static bag and use bubble wrap. We include the manual if available.

Installation Pitfalls Guide (“Lessons Learned” Voice)

I’ve repaired hundreds of these VF-S11 drives. Here is how to keep yours alive.

1. Input Power Mismatch: The DICW01G031 is a 200V class drive. If you hook it up to 480V power (common in US factories), it will explode. Double-check your facility voltage. If you have 480V, you need a 400V class drive (like the DICW01G021).
2. Output Wiring Short: Never short the output terminals U, V, W to ground or each other while running. The IGBTs are sensitive. If you are testing, use a motor or a reactor, not a dead short.
3. Loose Screws: Vibration loosens the terminal screws. A loose power screw causes arcing, which burns the terminal block. Torque them down properly during installation.
4. Cooling Fan Clearance: The fan is on the bottom. If you mount this drive flat against a plate with no gap, it will overheat and trip on “OL2” or “OH” faults. Give it air.
5. Brake Resistor Confusion: This model has a built-in braking transistor, but it does not include the braking resistor itself. If you need dynamic braking, you must wire an external resistor to the P/+ and PB terminals. If you don’t connect one, the drive will trip on Overvoltage (EOU2) during deceleration.