Quanzhou Ausenist Technology Co., Ltd PMSM Water Pump VFD Configuration for OEM Pump Manufacturers
Engineering reference rendering; it is not a photograph of a named OEM production line.
A PMSM water pump requires a VFD with the correct motor-control mode and a verified parameter set. Rated voltage, current, frequency and speed are not enough by themselves; the supplier may also need pole pairs, back-EMF or flux-related data, resistance, inductance and permitted speed range. AUSENIST YS620 and YS820 configurations can support PMSM and induction-motor pump projects, subject to motor and application validation.
Reference Design at a Glance
| Item | Reference Requirement |
|---|---|
| Reference market | Turkey OEM pump manufacturer |
| Pump | 4kW vertical multistage constant-pressure pump |
| Motor | 380V PMSM |
| Control | Built-in PID with pressure transmitter |
| Suggested series | AUSENIST YS620 or YS820 PMSM-capable configuration |
| OEM scope | Preset parameters, housing/label options and documentation |
| Validation | Motor test, hydraulic test and protection test |
What Information Is Required?
- Complete PMSM motor data sheet and nameplate.
- Pole pairs, rated speed and maximum permitted speed.
- Phase resistance, inductance and motor-control data available from the motor supplier.
- Rotor-position or sensorless control requirement.
- Pump curve, pressure/flow range and minimum safe speed.
- Pressure-sensor signal and protection sequence.
- Annual quantity, branding, language, connector and packaging requirements.
Selection Example
For a 4kW, 380V PMSM pump, select the VFD by motor current and control compatibility. Enter the manufacturer’s PMSM data and complete the approved identification or tuning procedure with the pump in a safe test condition. Limit speed to the motor and pump’s permitted range, then tune the pressure loop on a hydraulic test bench.
If reliable PMSM data is unavailable, do not copy parameters from another motor with the same kW. Two 4kW PMSM designs can require different control values.
OEM Validation Sequence
- Confirm electrical and mechanical motor data.
- Verify motor rotation and current at low speed without hydraulic overload.
- Test the complete pump across its permitted flow range.
- Tune PID, sleep/wake and dry-run functions.
- Test sensor loss, blocked flow, overload and power recovery.
- Freeze the approved parameter version and keep a change record.
- Validate any private-label keypad text, manual and packaging before mass production.
Why This Configuration?
PMSM control depends on the actual motor’s electrical characteristics. A controlled OEM parameter-release process prevents undocumented changes between samples and bulk orders. Supporting both PMSM and induction-motor configurations can also help a pump manufacturer standardize its VFD family, but each approved motor still needs its own validated parameter set.
Expected Result and Acceptance Checks
Expected behavior is stable starting, controlled current, correct rotation and repeatable pressure control across the approved pump range. Acceptance records should include motor temperature, current, speed, pressure, flow, low-demand sleep/wake and protective trips. No efficiency or energy-saving figure should be published without a defined test method and measured data.
Common Mistakes
- Treating PMSM setup as identical to induction-motor setup.
- Copying parameters between motors based only on kW.
- Running automatic identification with an unsafe pump condition.
- Allowing speed above the pump or motor limit.
- Changing firmware or parameters without version control after approval.
AUSENIST Solution
AUSENIST can review PMSM and induction-motor data, provide a suitable YS620 or YS820 configuration, prepare preset parameters and support OEM/ODM labels, language and documentation. Customization is confirmed through technical review and sample validation; it is not an unrestricted promise for every motor or certification requirement.
FAQ
Can one AUSENIST VFD family support PMSM and induction motors?
Supported configurations can cover both motor types, but the correct motor mode and validated parameter set must be selected.
Is a motor nameplate enough for PMSM setup?
Often not. Additional electrical parameters may be required from the motor manufacturer.
Can AUSENIST preset parameters before shipment?
Yes, after the motor, pump and control configuration has been validated and the approved parameter version is defined.
Send us your pump motor range, PMSM data sheet, voltage, application and annual demand. We can recommend suitable VFD models, parameter settings and OEM solutions.