EA47 : CompletePower™ Drives

Technology: Brushless Servo-PWM
Quadrants: 4
Nominal Current: 9 and 18A

For BLDC Motors. Up to 1260W.
This four-quadrant brushless DC servo amplifier is fully enclosed in a rugged aluminum case which can be DIN-rail mounted of panel mounted for easy integration. The drive can be configured in a variety of torque and speed control modes with the mode of operation being set by simple DIP switches. Both the 98A and 18A versions of this drive have an adjustable current limit and can be powered by the same 9 - 70 VDC range of supply voltage. The drive is protected against over-current and over-temperature and motor short-circuit and incorporates state of the art MOSFET technology for maximum efficiency. Connectivity is tool-free with RJ45-CAT5 connectors for control/feedback inputs and push-type terminals for supply power and motor connections.

EA47 Technical Drawings


EA47 Specifications

Model Numbers Power Supply Voltage
Aux Voltage
Continuous Current
Peak Current
Max Power
Frequency of
Power Output Stage
EA4709 9 - 70 5 - 24 9 18 630 with heatsink 50 97
EA4718 9 - 70 5 - 24 18 36 1260 with heatsink 50 97

Control Inputs
Set Value -10 to +10 VDC
Enable TTL / +24 VDC
Features Selected by Dip Switches
PWM-, Hall-, Enc-, Torque not set/set
Phase 120/60
Enable on / off
Set value via Offset offset/ext
Ipeak on/off
Auxillary Voltage Sources 5V/50mA
Auxillary Voltage Sources 10 VDC/10mA
Monitor I 0.5V/1A
Monitor n 10VDC/nmax
Error open collector / push pull / TTL / 24V
LEDs green = power / yellow = error
Function of Potentiometers offset / nmax / gain / ramp time
Mechanical Specs
Dimensions (L x W x H) inches / (mm) (119) X (85) X (27.5)
Mounting Hole Distance (mm) 112 X 50
Weight in ounces / (grams) (220)
Operating Temperature (°C) -10 to +45
Storage Temperature (°C) -40 to +85
Humidity Range Not Condensing (% rH) 20% to 80% Relative, Non-condensing
Operation Mode
Operation Mode speed-control by hall
speed-control by encoder
torque control