EM-282D-JS1 is a full bridge DC-motor starter. It is designed for joystick controlled DC-motor applications. The driver has adjustable acceleration and deceleration ramps, which enable the smooth starts and stops. Adjustable current limit protects the motor against overcurrent and it can also be used as an end-stop. This device has also two settable speeds, separate speed ranges for forward and reverse direction. Control input is specially designed for joystick control. The joystick range calibration is done automatically, when calibration function is activated. Calibration detects forward, reverse and midpoint positions. FAULT terminal has simultaneously both input and output functions, the pin is normally high, but is pulled down in overheat and conditionally also in current trip situation. If FAULT-line is pulled down externally it will cause a stop and prevent it from starting again. For example, it is possible to link fault pins of several units together and achieve a syncronous stop.
There are also special settings as start-kick which can be used in case the device is in danger of being jammed. Limit input can be individually set for NPN or PNP logic.
This D-version has added Rs-485 serial port for Modbus communication possibility.
The parameter's settings can be done with various EM- interface units. Operation of the controller and some of its functional values can also be monitored with interface units.
| TECHNICAL DATA (EM-282 pcb -D ver.1 prog JS1 v1.7) | |
|---|---|
| Supply voltage (nom.) | 12-48Vdc (abs. limits 10-60V) |
| Shutdown voltage | 10V |
| Overvoltage limit adjustable | 15-60V |
| Idle current (typ.) | 20mA |
| Motor current max. cont. | 100A (at 24Vdc and 25°C amb. temp) |
| 80A and 100A with fan installed (at 24Vdc and 60°C amb. temp) | |
| Motor currents are about 20% lower with 16kHz PWM freq. | |
| At 48V supply voltage, motor current is typically 15% less | |
| Braking load current (pin 16) | Max cont. 50A, peak 100A |
| Current limit adjustable | 1-200A |
| NOTICE! | Current limit is 20% boosted during start ramp. |
| Overtemp. limit | 100°C |
| Start and stop ramp | Adjustable 0-5s |
| PWM frequency | 2kHz / 16kHz |
| Joystick input scale | 0-5 or 0-10V (if DIP 1 is ON) |
| Input control logic | High = 4-30V, Low = 0-1V |
| Control input impedance | Typ. 10kΩ |
| Control input response time | Typ. 5ms |
| Fault output | NPN open collector, max 42V / 0.5A |
| Fault input active | Uin < 1V (NPN with 100k pull-up) |
| RS-485 bus | Half duplex, ModbusRTU, 9.6/19.2 kbps |
| Motor and supply connectors | 16mm² |
| Control connectors | 1mm² |
| Dimensions | 180 x 122 x 60mm |
| CE certification | Tested for industrial environment (EMC) |
| Operating ambient temperature (Ta) | -40...60°C |
| Weight | 750g |
