VFD500M
Primary candidate for compact, low-power machine panels; supply class and motor current are matched within the shared model window.
Open technical pageCompact vector AC drive
Delta MS300 and Veikong VFD500M: compact vector-drive comparison
Compare MS300 and VFD500M in small machine panels by supply, motor type, STO, built-in logic, EMC, I/O and temperature conditions.
Short answer
What does this page recommend?
A technical alternative, not a drop-in substitute
VFD500M is a technical candidate for small motors in space-constrained panels, but MS300's PM motor, STO, PLC and communication options cannot be treated as equal under one 'compact drive' label. The shared supply and current window must be found first.
Veikong
ProControl products to evaluate first
The exact configuration is selected after engineering review.
VFD200
Economical second family for basic speed control; it is considered only after advanced safety, motor and network requirements are checked.
Open technical pageTechnical comparison
Similar requirement, different architecture
The table explains product architectures; it is not an exact order-code selection.
| Validation area | Delta MS300 | Veikong / ProControl candidate |
|---|---|---|
| Supply and shared range | MS300 has several single/three-phase voltage and power variants; the exact catalogue row determines selection. | The VFD500M official page publishes 0.4–4 kW at 1-phase 200–240 V and 0.75–7.5 kW at 3-phase 380–480 V; only shared current is compared. |
| Motor technology | Delta publishes MS300 as a compact family supporting IM and PM motor control. | The VFD500M page describes vector and V/f control; compatibility with a specific PM motor is not claimed without evidence from the exact-model manual. |
| Built-in logic | MS300's built-in PLC can execute part of the machine sequence in the drive. | VFD500M basic logic, PID, sleep and process functions are tested against requirements; the Delta PLC program is not transferred. |
| STO and protection | The MS300 family is offered with STO; terminals and certification depend on the exact variant. | If certified STO evidence is unavailable for VFD500M, the safety circuit is rebuilt with an external contactor/motor-isolation architecture. |
| EMC and temperature | For MS300, filter, side-by-side mounting and temperature derating are assessed by selected model. | The VFD500M official page states integrated C3 EMC and 50 °C operation; derating is also calculated from cable length and panel temperature. |
| I/O and commissioning | MS300 uses Delta's parameter structure with USB, communications and I/O resources. | VFD500M's published capacity of 5 DI, 2 AI and 1 AO is mapped to the signal list; scaling and fault-reset tests are run. |
Suitable scenario
When is it worth evaluating?
- Compact conveyors, packaging auxiliary axes and fan applications
- New machines using Modbus RTU with limited I/O
- Low-power retrofits where panel layout and safety circuit can be redrawn
Migration gate
Before making a decision
- Verify mains phase, voltage and motor full-load current.
- Document MS300 PM-motor, STO, PLC and fieldbus use separately.
- Confirm VFD500M model current, braking unit and EMC class.
- Test I/O count, analogue signal range and Modbus register map.
- Perform thermal calculation and loaded operation test for the 50 °C panel scenario.
Frequently asked
Clear answers about alternatives and migration
Is this a drop-in replacement?
No. It is not a direct substitute until exact model, electrical, protocol-role, mechanical, software and certification checks pass.
What should I provide for selection?
The exact existing code, diagram or I/O list, PLC/network data, supply, environment and special functions in use.
Can the PLC program inside MS300 be loaded into VFD500M?
No. Commands, timers, I/O and fault logic must be rewritten for the PLC or the documented functions of VFD500M.
Official manufacturer sources: Delta MS300 official product page · Delta MS300 official catalogue · Veikong VFD500M official product page
This content compares manufacturer-published data under the same project requirement; it does not guarantee direct substitution or project compatibility. ProControl engineering must validate exact model, revision, protocol, electrical, safety and environmental conditions.
Validate the match with an engineer
Share the exact existing code, I/O list, network and environment so we can identify the right solution without assumptions.