Features and benefits
21 - 1600 A, 7.5 – 850 kW
(Versions for 200 – 690 VAC)
To make programming easy, the VLT Soft Starter MCD 500 has a four line, multi language graphical display and a logical keypad. This enables advanced setup and viewing of operational status. Three menu systems: Quick Menu, Application Setup and Main Menu provide optimal programming flexibility and ease of use.
AAC, Adaptive Acceleration Control, automatically employs the best starting and stopping profile for the application. This means that for every start and stop, the soft starter compares and adapts the process to the chosen profile best suited to the application.
Start and stop
• AAC adaptive acceleration control
• Current ramp
• Constant current
• Coast to stop
• TVR to stop
• AAC adaptive deceleration control
Three output relays, 1 programmable. Analogue output motor thermistor.
Protection at a glance
The MCD 500 provides superior protection, fully adjustable to the actual needs, enabling increased reliability, uptime and equipment lifetime expectancy.
• Adjustable bus bars allow for both
top and bottom entry (360-1600 A,
160-850 kW) – Reduced installation
cost and motor stress.
• Inside Delta (6-wire connection) –
Smaller soft starter can be selected.
• Log menus, 99 events and trip log
– eases analysis.
• Second-order thermal model –
allows motors to be used to their
full potential without damage from
• Internal bypass contactors (21-
215 A – 7.5-110 kW) – saves space
& wiring, low heat dissipation when
running, eliminates external fans.
• Auto reset – reduces downtime
• Auto-start/stop clock - application
• Compact size, amongst the
smallest in their class – saves space
For remote operation, the Control Panel VLT LCP 501 is a full-function unit that provides users with exactly the same level of control as the MCD 500’s built-in user interface. The LCP 501 is IP 65 protected and comes with a three meter cable and door mount kit - a perfect solution for Door mount for panels.
8 language, 4-line graphical display and keypad. Quick menu and application menu buttons for start, stop, reset and remote control. Inputs for 2 or 3 wire control.
Modules for serial communication
- Modbus RTU
- VLT® MCT10