BTD1 analogue servo drive (Max. output: 260 VAC / 50 A) with IGBT bridge. Ideal for driving 4-quadrant brushless synchronous motors
The BTD1 servo drive is ideal for driving synchronous servomotors (permanent magnet brushless) equipped with a speed transducer, with voltages up to 260 V and maximum currents up to 50 A.
The BTD1 features internal analogue circuits with an IGBT bridge and 4-quadrant operation with no deadband at zero speed: the motor shaft is rigidly held even at standstill.
Settings are adjusted using trimmers, DIP switches and test points; diagnostics are indicated by green and red LEDs.
Further information
Maximum output current: 6 A to 50 A
Maximum output voltage: 1.2 × three-phase supply voltage (MAX 260 V)
Single-phase service supply: 220 V ±10% - 50 mA max., protected by external 250 V - 500 mA fuses
Three-phase power supply: 50 V to 240 V, protected by external fuses as per the user manual
Single-phase power supply available on request
The BTD1 electric drive supports synchronous motors (brushless permanent magnet motors) with speed sensors. The table below lists the brands and models of some of the supported motors.
| Brand | Model |
| ACM | 155, BRL 152 |
| ABB (Isoflux) | Series 64 and 74 – Series 8 |
| AEG | BHT |
| ALLEN BRADLEY | F-4050 |
| AXOR | SSAX |
| BAUMULLER | DS56, DS71, DS100, DS100M, DS400M |
| BALDOR | BSM |
| BOSCH | SD, ISE |
| BREGENHORN BUTOW | S5 |
| BRUSATORI | BR |
| CONTROL TECHNIQUES | DUTY MAX, MSB, E3A, H-S100, |
| D. ELECTRON | DSM |
| DRIVE SYSTEM | Serie BLT |
| DYNAMO MOTOR | 130-750 |
| ECS | - |
| FANUC | 5-0, 4-0, 3-0, 2-0, 1-0, 0, 5, 10, 20M, 20, 30, 30R, alpha12/3000, alpha6/3000 |
| GEORGI KOBOLD | KSY |
| GETTYS | M477, M474 |
| HDT LOVATO | B10, B14, B20 |
| KOLLMORGEN | - |
| INDRAMAT | MAC |
| ISOFLUX | Series 6, Series 7 |
| LAFERT SELCA | Series T, Series S |
| MAGNETIC | BL |
| MAVILOR | BL, MA |
| MITSUBISHI | HA |
| MOOG | FAS |
| NUM | BMG, BMH, BMS, BPG |
| OKUMA | BL |
| OSAI (Allen Bradley) | Serie F |
| PANASONIC | MH, MA |
| PARKER | RX |
| RCV | UL5, UL7 |
| RELIANCE ELECTRIC | F |
| ROTOR | SBA |
| SANYO DENKI | BL, SUPER, BM |
| SBC | MB, SBA |
| SEIDEL KOLLMORGEN | SM |
| SELCA | - |
| SICME | NGBE |
| SIEMENS | 1FT1, 1FT5, 1FK7, |
| STOEBER | - |
| TECH FAB | ESA |
| TEKNIC | M |
| VIKERS | FAS, FAS-T, FASTACT |
| YASKAWA ELECTRIC | - |
| YE-LI E&M CO. | YBL |
If your engine is not listed here, please contact us to check its compatibility.
The speed transducers supported by the BTD1 converter are:
- 5 V TTL encoders with line driver + Hall effect sectors
- Resolvers
- Brushless tachogenerators
For other types of transducers, please contact the Alter Elettronica technical department.
NOTE: Please specify the type of transducer when placing your order.
- The main functions of the BTD1 drive are:
- Differential input for the speed reference
- Adjustable and disableable ramp on the speed signal
- Analogue input for external setting of the current limit
- Analogue output proportional to motor speed
- Analogue output proportional to motor current
- Opto-isolated logic controls: 15–30 Vdc, 10 mA max
- LEDs indicating operating status and alarms
- Digital input to perform “Reset stored alarms” from the drive
- "Converter Operational" signal via NO relay contact
- "Simulated Encoder" output: 1024 pulses/revolution, 5 V line driver (not for brushless motors equipped with a tachometer)
- Three-phase line reactance
- Three-phase line filter
- External fuse holder
- Ultra-fast fuses
- External braking resistor
- Capacitive module for DC-BUS
