Generator accessories

DER2/A - digital generator voltage regulator
three-phase sensing and according to DIN ISO 8528-5: G3 (EMV immunity)

- specially required for high EMV immunity in consumers in the form of
  Frequency inverters, servo-converters, switched-mode power supplies, DIN ISO 8528-5 design: G3 
- specially for three-phase actual value measurement and average control of the output voltage
  three-phase asymmetrical load

· Fully digitally controlled controller based on DSP
· Machine-integrated installation
· Suitable for all self-regulating generators
· Power connection to fast-on connector 20-pole
· Winding protection of the supply with fuse 5A (fast)
Signal connections (Pext, 60Hz Jumper, APO) to a separate connector mini
  Fast-on 10-polig
· Ambient temperature: -25°C... +70°C
· Supply voltage: 40 Vac... 270 Vac (from auxiliary winding),
  Output voltage or PMG
· Maximum DC output: 4 Adc
· Frequency range: 12 Hz... 72 Hz
· Sensing three-phase or single-phase for all connections (Y-D-YY-DD)
· Automatic one-phase or three-phase recognition
· Setting the average value
· Field for voltage setting (sensing) from 75 Vac to 300 Vac
· Precision of voltage control: ±1% from zero load to nominal load below static
  Conditions at any varying power factor and frequency values
  between -5% and + 20% against the nominal value.
· Voltage accuracy: ± 0,5% under constant conditions (load, temperature).
· Transient power drop and overvoltage in the range ± 15%
· Recover time of the voltage ± 3% of the set value in less than 300 m/sec.
· Programmable soft start
· Parameters: VOLT, STAB, AMP, Hz adjustable with trimmers (basic setting); 50/60Hz with
  "Jumper" (basic setting); All parameters can also be programmed on the software side
· Analog remote control of the output voltage by means of external
  Signal 0... 2,5 Vdc or -10...10 Vdc
Analogue remote control of the output voltage by means of an external potentiometer
  (25 kOhm or 100 kOhm)
· Low-speed protection with an adjustable threshold and adjustable gradient
· Alarm in case of overvoltage and undervoltage
Excitation overcurrent protection with delayed intervention
Treatment of short circuits caused by switch-on shocks (start of the asychnron motors)
· Open collector output (not isolated) signals the intervention
  the protective devices (insulation at optimum DI1-Modul) with programmable
  Activation regarding the individual alarms and the possibility of intervention delay
· Storage of irregular operating conditions (type of alarm, number of events),
  Duration of the last event, total time
· Storage of the controller operating time
· Compatible with the communication software of the DSR terminal (for adjustment)
  the parameters or to read out the operating conditions and alarm messages

The DER2/A is a voltage regulator for synchronous generators, designed for stand-alone operation and calibration. To use its maximum power, the controller should be considered as part of at least a two-part system:
the DER2/A (control unit) and monitoring unit.

The monitoring unit may consist of a PC, another "synoptic" device or both. Control is not done in real time, but allows programming and visualization of all functional parameters of the DER2/A.
The controller has a USB interface on the board.

The DSR is a fully digitally controlled voltage regulator based on DSP (Digital Signal Processor), which combines functions such as voltage regulation, generator protection and diagnostics in a single board. An optional digital communication interface DI1 enables the connection of the DSR controller to a higher-ordered PC or SPS. A IF321 optional interface allows a measurement of three phases of the generator. The free "DSR Terminal" software is user-friendly designed as a window-based graphical user interface.

- Variable voltage supply: From 40 Vac to 270 Vac
Maximum continuous output current of 4 Adc
Ambient temperature: From -25 °C to +70 °C
- Voltage and software sensing measurement on True RMS
- Voltage control accuracy: ± 1%
- single-phase or three-phase measurement with optional board
- Control of 15 Hz to 72 Hz
-4 trimmers for standard settings (Volt, staff, amp, Hz)
- Under speed protection with adjustable threshold and "slope level"
  For variable speed applications
- Protection of excitation via current.
Precise treatment of short circuit
Precise treatment of start asynchronous motors
Possibility of analog remote control of the output voltage
- Hardware or software bridge for 60 Hz
- Non-volatile memory for settings and alarms
Default settings for standard generators
- Adjustable parameters based on the need of the customer.
Serial interface (optional external board)
Allarm's list: - Checksum EEprom - Overvoltage
- Low voltage - Short Circuit - OVER Eccitation - under Speed - Speed OVER

The new EasyReg Advanced software allows you to set up and operate our D350, D550 and D700 regulators in the best conditions.
Only suitable for our KSA synchronous generators.

Download the EasyReg Advanced Software
https://acim.nidec.com/generators/leroy-somer/downloads/softwares/easyreg-advanced