EM-337A-SPF is a parallel synchro controller for 4 DC-motors. The controller has four H-bridge power stages. The driver works with actuators that can offer pulse feedback signal. The control can be done with analog set signal and or alternatively with Rs-485 bus. This -SPF firmware version uses a analog SET signal, then driver works like servo driver and positioning actuators to the same value as the set value. The range of set value can be adjust with parameters.
The built-in synchronization control will keep all motors in the same speed and position. If synchronous error exceeds the set difference limit, all motors will be stopped. Device includes adjustable acceleration and deceleration ramps, which produce the smooth starts, stops and direction changes. Load compensation also enables good operation with asymmetric loads. Adjustable current limits can be set to protect motor and mechanics against overcurrent (over sized forces).
| Technical Data | |
|---|---|
| Supply voltage | 10-35Vdc (Nom. 12-24Vdc) |
| Undervoltage shutdown | 8V |
| Overvoltage limit | 38V |
| Idle current | < 20mA |
| Motor current (@ 2kHz / 16kHz) | 4x10A / 4x5A (continuous use) |
| 4x15A / 4x7A (25% duty cycle) | |
| 4x20A / 4x8A (10% duty cycle) | |
| 4x25A (max. in start) | |
| Current limit (adjustable) | 1-25A |
| Overtemperature limit | 90°C |
| Overtemperature shutdown (power stage) | 120°C |
| PWM frequency | 2kHz or 16kHz |
| Input control logic levels | "NPN" ON = 0-1V, OFF = 4-30V or open |
| "PNP" ON = 4-30V, OFF = 0-1V or open | |
| Control input impedance | Typ. 47kΩ or 10kΩ |
| Pulse input frequency | Max. 700Hz / input channel |
| Pulse inputs pull-up/down | 10kΩ |
| Fault output (NPN open collector) | Max. 30V / 50mA |
| 5V auxiliary output | Max. 20mA |
| Position output | 0-5V (R_out 1kΩ) |
| Position input | 0-5V or 0-10V |
| Brake output (NPN) | Max. 4A |
| RS-485 (half-duplex) | 9.6 or 19.2 kbps |
| Supply connectors | 4mm² |
| Motor/control connectors | 2.5mm² / 1.5mm² |
| Weight | 190g |
| Recommended operating temperature (Ta) | -40...60°C |
| CE Electromagnetic Compatibility | EN-55022B, EN 61000-6-2/-4-2...6 |
| Dimensions and housing options | |
| Card | 142 x 73 x 28mm |
| DIN-rail base installation | 145 x 127 x 50mm |
| Fibox PC150/60 | 180 x 130 x 60mm |
| Fibox PC175/100 (incl. 300VA supply) | 180 x 180 x 100mm |
