Original Leroy Somer D510C AVR Automatic Voltage Regulator with Software
The D510C is a digital voltage regulator, which monitors and regulates the alternator output voltage. It is designed for alternators with SHUNT, AREP or PMG excitation.
The D510C is an AVR which can be configured using the Easyreg® software.
There are 4 possible regulation modes :
– Voltage, P.F., kVA, manual.
The I/O can be configured :
– 2 x I : analog.
– 1 x O : analog.
– 2 x I : digital.
– 3 x O : digital.
1 dry contact.
1 USB port.
DB9 plug for CAN.
It complies fully with the requirements of IEC standard 60034-1 and UL 708 and CSA certifications.
| Voltage regulation | ± 0.25% |
| Function | regulation of voltage, PF, kVAR and manual regulation |
| Response time depending on PID settings | |
| Rated field current | 6 A |
| Maximum field current | 15 A/10 s |
| Power supply range for voltage sensing | up to 530 V |
| Protection | – Short-circuit / Loss of voltage reference / Overvoltage / Overexcitation / High Temperature / – Speed drop / Diode fault / Stator current unbalance / Current limitation. |
| Engine assistance | |
| Soft start | 0 – 100 s |
| U/F adjustable from 0.5 to 3 in increments of 0.1 | |
| LAM | 0 to 30% |
| Gradual increase | 0.1 to 30 s/Hz |
| Grid code function |


















