Argo-Hytos EL6 User manual

EL6
Subject to change · EL6_9150_1en_02/2016
www.argo-hytos.com
Page 1
Digital Control Electronics Unit - Plug-in Version
Technical Features
›Digital electronics for open-loop control of a single proportional valve solenoid - plug-in version
›Independent adjustments (including ramp up and ramp down)
›Large, easy-to-use adjustments, readout on a 3-digit, 7-segment LED display
›Display of actual values direct adjustment (current & voltage)
›User selectable input type through menu setup (ex: 0 to 5V, 0 to 10 V, 4 to 20 mA)
›Wide range of supply voltage and ramp time (0 to 99.5 sec)
›Simple control with analog input, locally supplied reference voltage
›Energy efficient PWM circuit, no heat sink required
›Electronic limiting circuit/ short-circuit proof
›Reverse polarity, command input protection
›Load can be connected and disconnected live
›Mounting: DIN 43650-A/ISO 4400 solenoid terminal
The control electronics is intended for the open-loop control of proportional valves with one solenoid. Its great advantage is its miniature design
in form of a socket for a standardized DIN connector base.
The unit supplies a variable current proportional to the reference signal, independently of temperature or load impedance variations.
To optimizie valve control and minimize valve hysterezis the unit contains a PWM stage to supply the solenoid.
The card’s top surface contains two revolving selectors, a terminal block to connect supply and control wires, and a three-digit LED display.
The selector marked as “SELECT” is used to select the parameter to be adjusted. The second selector, marked as “ADJUST”, is used to set the desired
value. In basic operational mode, the display shows an input/output parameter value; in adjustment mode, the selected parameter abbreviation
and the value being set up are indicated. The correct input signal type must be selected before operation.
Solenoid data
Operating voltage V 9… 36 DC
Max. output current A 3
Control signal type 0 - 5 [V], 0 - 10 [V], 4 - 20 [mA]
Adjustable range of ramp functions s 0.05… 99.5
PWM / Dither frequency Hz 40 - 450
Linearity % 1
Operating ambient temperature °C (°F) -40... +75 (-40... +167)
Recommended cross-section of lead-in wires mm20.5... +0.75
Enclosure type of the solenoid to EN 60529 IP65
Mass kg (Ibs) 0.13 (0.29)
V 12 24
Max. coil excitation current
of proportional directional valves
PRM2-04
A
(Coil 16186100) … 1.7 (Coil 16186200)… 0.8
PRM2-06 (Coil 16187500) … 1.6 (Coil 16186800)… 1.0
PRM6-10 (Coil 16195800) … 1.9 (Coil 16196200)… 1.1
Attention: A cable with a circular cross-section and outside diameter of 4 to 6 mm should be used for the electronics supply,
only this way the declared degree of IP protection can be secured.
Functional Description
Technical Data

1
2
3
GND
IN
+VDC
GND
2
1
3
REF IN +VDC GND
2 1
3
9÷36 V DC
0 V
0÷10 V
4÷20 V
0÷5 V
0 V signal
1
2
3
GND
9-36 V
9-36 V
0-10V
0 V
+5 V
9-36 V
9-36 V 4-20 mA
9-36 V 4-20 mA
Subject to change · EL6_9150_1en_02/2016
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Wiring Diagram
Block Diagram
PROPORTIONAL VALVE
GAIN 1
RAMP UP/DOWN
OFFSET 1
DITHER
+9 / +36 V
PID
PWM
POWER SUPPLY
0 V
REFERENCE SIGNAL
0 +10 V / 40-20 mA / 0+5 V
0 V SIGNAL
Installation note:
1. The power supply voltage on the connector must be higher than the rated working voltage of the solenoid to be controlled.
2. The IP rating depends on proper installation by the user. A round cable of 4 - 6 mm (0.15 - 0.25 in) diameter must be used.
3. For „0 to 5 V DC“ and for „0 to 10 V DC“ command input drivers, it is recommended to use independent negative conductors for
power supply and analog output channel (PLC/PC) to maintain command signal accuracy due to voltage drop on long cables.
1) EXTERNAL INPUT SIGNAL CONNECTION
(”in” set to ”10”)
2) POTENTIOMETER CONNECTION
(”in” set to ”5”)
3) RAMP UP & DOWN ONLY OPERATION
(”in” set to ”5”)
4) EXTERNAL INPUT SIGNAL CONNECTION 4-20 mA
(”in” set to ”420”)
5) TWO WIRE TRANSMITTER INPUT CONNECTION 4-20 mA
(”in” set to ”420”)
Power supply
Power supply
Power supply
Power supply
Power supply
Command signal
Command signal
Command signal
Command signal
Command signal
Potentiometer
10kΩ
Fuse
Analog
output
Analog
output
2 wire
transmitter
REF
REF
Do not connect
Do not connect
Do not connect
From power supply

Subject to change · EL6_9150_1en_02/2016
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Page 3
Set up Procedure
Settings and Range
Optional features
Attention:
- Prior to setting up parameters, you must select the proper input signal type for your system.
The standard is preset to an input signal from 0 to 10 V.
- Applying an improper input signal type may be damage the driver unit and may cause the system to fault to the „Error“ status mode.
1. At power up, the display will show either the output current signal or the input signal (default display setting shows the output signal).
The decimal point will be flashing.
2. Rotate „SELECT“ to enter the set-up mode. Parameter abbreviation is indicated on the display.
3. When you reach the setting you want to modify, rotate „ADJUST“ up or down to the desired value.
4. To modify another setting, rotate „SELECT“again and repeat.
5. The driver is fully functional during the set-up procedure with any adjustments taking effect immediately.
6. In order to write the new settings in the memory and return to normal mode of operation, rotate „SELECT“ until the display shows „SR“
and then rotate „ADJUST“ from 0 to 1 or wait for 100 seconds.
7. If you do not want to save the new settings you have just modified, you must disconnect the Driver form the power supply
before the end of the 100 seconds to restore previous settings.
8. After saving the parameters to memory, the decimal point will be flashing and the driver display will be back showing either the output current
signal or input signal depending on your „di“ selection.
9. To start over completely, you can restore the factory settings by rotating „SELECT“ to „rFP“ and then
rotate „ADJUST“ up from 0 to 10 for the display to reset.
(NOTE for Step 9: You may have to adjust your input signal type again if you reset to factory settings).
Pcd: PASSWORD, adjust code for password protection settings for lock or unlock
Loc: LOCK, locks driver to LOCKED state with password set in Pcd
UnL: UNLOCK, unlocks driver with correct password set in Pcd. Only available in LOCKED mode!
Parameter
Abbreviation Parameter Adjustable Range
Hi HIGH, maximum current output 0.20 - 3 A
Lo LOW, minimum current output 0 - 2.99 A
rUP RAMP UP, time for output to increase from min. to max. 0 - 99.5 s
rdn RAMP DOWN, time for output to decrease from max. to min. 0 - 99.5 s
Cdb dead band – output current to the coil is zero, until the control signal exceeds a threshold
of insensitivity (the threshold is expressed in % of the control signal maximum value) 0 - 5 %
dFr DITHER FREQUENCY, 40 (40Hz) to 450 (450Hz) 40 - 450 Hz
in
5
10
420
Input control signal type selection
- Voltage signal
- Voltage signal
- Current signal
0 - 5 V
0 - 10 V
4 - 20 mA
di
0
I
Signal value indication for checking or problem solving purposes
- Command signal [V] or [mA]
- Output signal [A]
Flashing decimal point is an indicator for present display mode:
- Fast flashing decimal point, several flashes per second indicates – command signal (di = 0)
- Slow flashing decimal point, 1 per second indicates) – output signal (di = I)
- No flashing decimal point or no decimal point indicates display in SETTING/ADJUST
SR SAVE SETTINGS
rFP RESET FACTORY PARAMETERS
Err
0
1
2
ERROR DETECTION STATE, short circuit, reverse polarity protection and detection
- Error 0 - no errors
- Error 1 - overcurrent in driver likely due to short circuit in solenoid
- Error 2 - current exceeding 20 mA in „4 to 20 mA“ input mode
CLr CLEAR ERROR, clears driver of error state
Note: When adjusting the Hi and Lo parameters, the Hi parameter value cannot be adjusted below the Lo parameter value as well the Lo parameter
value cannot exceed the Hi parameter value.

M3
18
(0.71)
109 (4.29)
20
(0.79)
32 (1.26)
5 (0.20)
52 (2.05)
40 (1.57)
18 (0.71)
A
DETAIL A
M 2:1
213
0% 3% 5% 25%
1,00
2,00
3,00
0,00
100 Hz 200 Hz
0 50 100
0.00
1.00
2.00
3.00
010
500
0
5
0 V
4 mA
2.00
1.00
5 or 10 V
20 mA
0.00
0 V
4 mA
2.00
1.00
5 or 10 V
20 mA
3.00
0.00 0.00
1.00
2.00
3.00
0
510
3.00 3.00
Subject to change · EL6_9150_1en_02/2016
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Range Characteristics
Dimensions in millimeters (inches)
Adjustment of ramp up:
(Ramp up) / parameter „rUP“ (from min. to max.)
time for output to increase, 0to 99.5 s
Adjustment of ramp down:
(Ramp down) / parameter „rdn“ (from max. to min.)
time for Output to Decrease 0to 99,5 s
Adjustment deadband:
(Command deadband) / parameter „Cdb“
output disabled if command signal
less than deadband
0 to 5% of the maximum command signal
Dither Frequency
(Dither frequency) / parameter „dFr“
Frequency selectable in a range from 40 to 450 Hz
Command signal [V or mA] Time [s]
Time [s] Command signal [V or mA] Time [ms]
Solenoid current [A]
Adjustment of maximum:
(High) / parameter „Hi“
maximum current output, 0.20 to 3.00 A
Adjustment of minimum:
(Low) / parameter „Lo“
maximum current output, 0.00 to 2.99 A
Command signal [V or mA]
Solenoid current [A]