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EME365 DC Motor Starting and Control
An industrial DC motor starting and control training system for
studying DC motor starting and control with step rheostats with
manual and automatic exclusion and linear rheostats with a 4quadrant electronic drive.
The board is designed to be used either as a stand-alone training
system, or to expand experimentation of the EME360, EME361,
EME362 or EME363 industrial motor control training boards.
An integrated power supply is suitable for permanent magnet or
separately excited DC motors up to 500 W.
» DC motor starting circuit with:
» Constant field and step rheostat armature
» Manual exclusion with rotating commutator
» DC motor speed control circuit with:
» Electronic drive with constant field
» Closed loop speed control with armature voltage or
tachogenerator feedback
» DC motor starting circuit with constant field and linear
» DC motor inversion and speed control with a 4-quadrant
rheostat armature
» DC motor starting circuit with:
» Partially controllable field
» Field excitation relay Armature with step rheostat
electronic drive with constant field and armature voltage or
tachogenerator feedback, with programmable starting and
braking ramps
with timed automatic exclusion
© HFT Global Ltd 2012 all rights reserved
18 Back Lane, Hilton, Derbyshire, DE65 5GJ, UK
Company registered in England 08213416.
t. +44 (0) 8455 199 280/90
f. +44 (0) 8455 199 260
e. [email protected]
www.hft-global.com
» Painted metal bench-top unit
» 4mm safety connecting cables and jumpers
» 1x 4-Quadrant electronic drive for DC motors up to 500 W with
separate excitation:
» Input power: 230 Vac
» Armature and field output: 170 Vdc
» Functions with armature voltage or tachogenerator (0.06
V/turn) feedback
» Analogue input: ± 10 Vdc for external potentiometer
control with ramps
» 4x On-board trimmers for programming ramps
» Analogue input ± 10 Vdc for external control with no
ramps
» Digital input for drive
» Tachogenerator input: 60 Vdc / 1000 RPM
» Relay with NO contact for alarm output
» 1x Potentiometer: 10 kΩ for drive speed control
» 3x 2-pole relays:
» 25 A
» 24 Vac coil
» 1x NO and 1x NC auxiliary contact
» 1x 25 A 3-Step 1 way adder-type switch for manual DC motor
starting
» 1x Programmable electronic relay for over and under-current
(AC/DC):
» Auxiliary input: 230 Vdc
» Selectable current ranges: 1, 2, and 5 A
» NO-COM-C auxiliary contact
» 1x Monoblock pushbutton:
» RUN key with NO contact
» STOP keywith NC contact
» Spy lamp 24 V
» 1x Red emergency stop button with manual release and 2x NC
contacts
» 1x Lever selector: 6 A, 250 Vac for drive stand-by and Run modes
» 2x Multi-function multi-voltage timers:
» TON, TOFF, PULSE
» Multi-scale: 0.1 seconds - 10 days
» 1x 180 Vdc, 5 A power supply:
» Input: 230 Vac
» Overload and short-circuit protection
» Bipolar switch
» Spy lamp
» 1x 24 Vac PELV output with single-phase transformer:
» 115/230 V, 24 V - 50 VA, 50 - 60 Hz
» 2 A fast fuse protection
» 1x R120 linear toroidal rheostat for the field circuit:
» 0 - 300 Ω
» In = 0.65 A
» Microswitch at Rmin position
» 1x Panel mounted power output socket: 2-phase and earth, 5x
20 10 A fuses
» 1x Single-phase power supply cable
» 1x R175 linear toroidal rheostat for the armature circuit:
» 0 - 40 Ω
» In=2.1 A
» Microswitch at Rmax position
120 V single-phase 60 Hz (other
power voltages and frequencies
available on request)
© HFT Global Ltd 2012 all rights reserved
18 Back Lane, Hilton, Derbyshire, DE65 5GJ, UK
Company registered in England 08213416.
800 x 400 x 100 mm
21 kg
t. +44 (0) 8455 199 280/90
f. +44 (0) 8455 199 260
e. [email protected]
www.hft-global.com
» Educational User Guide with Experiments
» Set of 40x 4mm safety cables
» Set of 6x 4mm safety cables
» EME365a DC Motor for EME365 (500 W, 170 Vdc armature
and separate excitation)
» EME232 Tachogenerator
» Power supply: 120 V 60 Hz single-phase
© HFT Global Ltd 2012 all rights reserved
18 Back Lane, Hilton, Derbyshire, DE65 5GJ, UK
Company registered in England 08213416.
t. +44 (0) 8455 199 280/90
f. +44 (0) 8455 199 260
e. [email protected]
www.hft-global.com