Electronic drivers type E-ME-L
analog, Eurocard format, for proportional valves with two transducers
Table G150-11/E
E-ME-L drivers control the current to
the solenoid of Atos proportional valves
with position transducer, regulating the
spool position or the flow according to
the electronic reference signal, adju-
sted by transducers’s feedbacks.
Features:
• bias regulation
• scale and dissymmetrical ramps
regulation
• voltage (standard) or current
(/I option) reference signal
• voltage (standard) or current
(/C option) feedback signal
• test point for reference and feedback
control on front panel
• factory pre-setted
• Eurocard format (DIN 41494 - plug-in
unit)
• electronic filters on input and output
lines
• CE marking granting the conformity
to the EMC Directive (Electro ma gne -
tic compatibility)
• both sides of the card with shielded
cover with E faston connector
Applications:
Position or flow open or closed-loop
regulation systems, according to the
block diagram .
2
2 BLOCK DIAGRAM
G150
USER FUNCTIONS AND CONTROL OPTIONS USER INTERFACE
SUPPLY 24V
REFERENCE SIGNALS
ENABLE SIGNALS
SPOOL FEEDBACK
SPOOL FEEDBACK
SOLENOID SUPPLY
OUTPUT INPUTS
DEAD BAND ADJUST SPOOLS POSITION CONTROL
RAMP GENERATOR OUTPUT PROTECTION
FEEDBACK
FAULT SENSE
ELECTRONIC DRIVER E-ME-L-01H
E-ME
E-ME = electronic driver
in Eurocard format
L = driver for -L proportional valve with
two transducers
01H = for single solenoid proportional valves
Options:
- = standard with rising and falling ramps
/C = suitable to receive current feedback signals
4 ÷ 20 mA (available only for ex-proof and
armoured valves)
/I = suitable to receive current reference signal
4 ÷ 20 mA
Series number
Set code (see 4.4)
L–**01H /*–
1 MODEL CODE
–
www.atos.com
EXTERNAL
GENERATOR
CLOSE LOOP
CONTROL
(AXES CARD)
REFERENCE
RAMPS
DEAD BAND
MAIN STAGE
PILOT STAGE
MAIN STAGE FEEDBACK
PILOT STAGE FEEDBACK
ACTUATOR FEEDBACK
TRANSDUCER
DRIVING CURRENT
FLOW
PRESSURE
ACTUATOR
POSITION
SPEED
ACCELERATION
FORCE
CURRENT
AMPLIFIER
PROPORTIONAL VALVE
COIL S1
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