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MS-487VFD controller

Cofa do poprzedniego slajdu przenosi do następnego slajdu

Dedicated controller for rotary screw compressors with an engine power of up to 22 kW with frequency converter (inverter), equipped with:

  • supervision 1 x pressure, oil temperature and current measurement
  • preset selection from the list of supported inverter types
  • calendar of individual and cyclical work
  • one line of information about the status of all filters
  • auto restart system and remote operation mode (REM)
  • multi-variant motor protection system
  • Y valve test and safety valve test

It has 3 programmable outputs supporting: condensate drain, dryer, fan, oil heating, error output and control line.

Basic controller functions and parametersStatus / value
For compressors in the motor power range0 – 22 kW
Display size2,6”
Colour / monochrome displaymono
Control of motors without a frequency inverter / with a frequency inverter– / ●
Measurement and control of pressure: main / network / pressure switch● / – / ●
Motor current control: asymmetry /current measurement/ on/off per hour● / ● / ●
Motor temperature control: Thermic / KTY-84 / PTC● / – / –
Oil temperature check PT-100 / PT-1000● / –
Operation: Condensate drain (DRAIN)/ Drier (DRYER) / Fan (VE) / Heater Mode1 (H1) or Mode2 (H2)● / ● / ○ / ○
Support: ERROR / ACK output – Confirmation line output for REM remote operation● / ○
Oil (OF)/ Air (AF) / Separator (Sep) filter inspection○ / ○ / ○
AUTOTLSE automatic operation time optimization function–
Automatic restart function after voltage loss●
Network operation via Modbus (in modes: Auto, Const, Local) as: SLAVE / MASTER– / –
Remote operation mode (REM)●
Work calendar: scheduled individual, cyclical / network● / –
Optional MS-Connect 2 visualization and diagnostics system–
Access control to the user / service menu● / ●
Y valve tests/safety valve test● / ●
Defined / programmable service counters6/2
List of recent events / critical errors / non-critical errors● / ● / ●
Saving / restoring controller settings● / ●
24V short circuit detection–
Language versionsPL, RUS, EN, DE

● the controller has this function
– the controller does not have this function
○ the controller can optionally have this function

The controller has only one Modbus output, which is used to operate the frequency converter (inverter). Therefore, it does not support the MS-Connect2 visualization and diagnostics system and network operation. It can only be managed remotely within the REM input. If network operation or MS-Connect2 visualization and diagnostics system is required for a compressor equipped with an inverter, the MS-887VFD controller should be selected regardless of the compressor motor power because it has two Modbus outputs. For details of the MS-Connect2 system, go to the “Visualization and Diagnostics Systems” product category.

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