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MS-887VFD ATC controller

Cofa do poprzedniego slajdu przenosi do następnego slajdu

This flagship controller for rotary screw compressors with a motor power of up to 500 kW with a frequency converter, monitoring the oil temperature in the PT-1000 standard, is equipped with:

  • supervision of 2 x pressures, oil and motor temperature
  • network management of up to four compressors
  • calendar of individual, cyclical and network operation
  • separate lines of information about the status of all filters
  • 24V short circuit detection and protection
  • auto restart system and remote operation mode (REM)
  • multi-variant motor protection system
  • Y valve test and safety valve test

It has 6 programmable outputs to handle, among others: condensate drain, dryer, fan, oil heating.

NETWORK OPERATION

Regardless of the power and types of compressors, master control allows you to synchronize the operation of the compressor assembly and avoid interruptions in the supply of compressed air in the event of a failure or stoppage of one of the compressors. The possibility of selecting a control algorithm in a “sequence” or “cascade” guarantees continuity of operation while ensuring a reduction in the load on each compressor and saving electricity thanks to a controlled distribution of the working time of individual machines.

Basic controller functions and parametersStatus / value
For compressors in the motor power range0 – 500 kW
Display size3,5”
Colour / monochrome displaycolor
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” product category.

Related products

MS-4CMPXv2 master controller

MS-Connect2 visualisation system