EM-241C-48V DC-Motor Controller

EM-241C-48V is a full bridge DC-motor starter for nominal voltage 24, 36 or 48V. It is designed to work with DC-motor in applications where some special functions are needed. Starter has adjustable acceleration and deceleration ramps, which make possible the smooth starts and stops. Adjustable current limit protects motor against overcurrent and it can also be used as an end-stop. This device has also two settable speeds, which are usefull in positioning applications. Control inputs FW and BW start the forward and backward run. STOP is for the motor soft shut-down but there are also available individual limit inputs for FW and BW directions. SPEED-2 input activates preset speed-2, but it can also be used as input for analog speed control signal 0-5V. STOP input can be set to work as current limit setting. FAULT terminal has at the same time input and output function, 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 the new start. For example, it is possible to link fault pins of several units together and achieve a synchronous stop. C-version includes wo new parameter: freewheel options for realease the rotor of motor. and pwm frequency select, but notice, that in silence 16kHz pwm frequency. the output current is smaller!
There are two selectable control modes, continuous and impulse. In continuous mode the motor runs as long as the control is active. In impulse mode a short comand starts the motor, and only a new impulse will change the status. There is also few special settings start-kick and auto reverse. The card has selectable input logics. Inputs are divided in two groups, control and limit -inputs. Groups can be individually set for NPN or PNP logic.
For parameters setting there is next options: EM-236 interface unit, EM-268 with EmenTool-Lite PC-program and EM-326 with EmenTool-App application for smartphone


TECHNICAL DATA
Supply Voltage RangeNom. 24-48V / Max. 20-60V
Overvoltage LimitAdjustable 15-65V
Start-up Voltage14V
Shutdown Voltage12V
Continuous Current Output
(Ta < 50°C) PWM = 2kHz10A @ 100% speed / 7A @ 5-99% speed
PWM = 16kHz7A @ 100% speed / 4A @ 5-99% speed
Peak Current (5s)25A @ 2kHz PWM / 20A @ 16kHz PWM
Current LimitAdjustable 0.1–25A (Start Max 30A)
Overheat Limit100°C
Ramp AdjustmentStart/Stop adjustable 0–5s
PWM Frequency2kHz / 16kHz
Speed Input (Speed-2)0-1...0-5V = 0–100% PWM (Param. 4 adjustable)
I-Limit Input (Stop Input)0–5V = 0–20A
Input Control LogicHigh = 4–30V, Low = 0–1V
Control Input ImpedanceTyp. 47kΩ
Limit FW / BW Input ImpedanceTyp. 10kΩ
Control Input Response TimeTyp. 5ms
Fault OutputNPN Open Collector, Max. 30V / 50mA
Fault Input ActivationUin < 1V (NPN)
Motor & Supply Connectors2.5mm
Control Connectors1mm
Dimensions (Module)42 × 72 × 25mm
Dimensions (DIN-Rail Base)45 × 80 × 45mm
EMC ComplianceCE-tested for industrial environment
Operating Temperature (Ta)-40...60°C
Weight75g

Product files

EN_em-241C-48V.pdf (183.97 KB)
EM-241C_ApplicationNote.pdf (86.85 KB)
EN_em-Rail_bases.pdf (2,833.53 KB)
ENemmetenc.pdf (354.19 KB)
EM-241C_3D.zip (2,566.25 KB)
Stock: 273 pcs.
57,00 €
VAT 0%

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Device design, programming, and laboratory testing

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