Baseline
Record supply voltage phase-to-phase, motor insulation suitability, rotation requirements and mechanical isolation status. A drive cannot correct a mismatched motor, seized load or unstable supply.
SVC-B · technical service matrix
Drive support begins with an auditable input set. Our engineers organize motor nameplate values, driven-equipment behavior, supply conditions, enclosure constraints and control architecture before a series or option is discussed.
Scope note: final settings, protective devices and conductor sizing remain subject to the project engineer, applicable electrical code and the manual for the exact drive type code.
| Stage | Required inputs | Engineering output |
|---|---|---|
| Duty review | Motor kW/HP, full-load current, base speed, service factor, torque curve and starts per hour | Normal- or heavy-duty frame basis, overload review and braking considerations |
| Power review | Rated voltage, frequency, available fault current, transformer data and grounding system | Input device questions, SCCR coordination inputs, reactor/filter considerations and conductor notes |
| Environment | Ambient temperature, altitude, contaminants, washdown exposure and cabinet ventilation | IP/NEMA enclosure direction, thermal derating checklist and cooling-path requirements |
| Controls | I/O list, safety function, command source, feedback and network protocol | Terminal map, option-card list, parameter workbook and commissioning sequence |
Record supply voltage phase-to-phase, motor insulation suitability, rotation requirements and mechanical isolation status. A drive cannot correct a mismatched motor, seized load or unstable supply.
Separate power and control conductors, terminate shields according to the product manual, verify protective earth continuity and check that safe torque off channels match the safety design.
Enter exact motor nameplate data, select command and reference sources, set acceleration and deceleration within process limits, then confirm minimum and maximum frequency.
Run uncoupled checks where permitted, record current and DC-bus behavior under representative load, test interlocks, capture fault history and retain a signed parameter backup.
Long motor leads may require dv/dt or sine filtering; high ambient temperature or altitude can reduce usable current; regenerative loads may need braking or active-front-end hardware. Harmonic performance also depends on source impedance and the complete installation, so a catalog efficiency figure alone does not predict system THD.
Attach the motor nameplate, one-line diagram, load description and preferred control network.