The red LED indicates operation of the position transducer:
OFF - normal operation
ON - transducer fault or electrical connection failure. In this case
the current supply to the solenoid is shut off and the valve is set at
the rest position, the ENABLE LED switches off and the OK card
relay contact opens (6a - 6c pin)
1 - IDENTIFICATION CODE
UEIK-11RS*
SERIES 52
Power supply voltage = 24 V DC
Series No. (from 50 to 59 sizes and
mounting dimensions remain unchanged)
Eurocard type electronic
control unit
For single solenoid proportional valves
Position feedback control
3.1 - FAULT
89 315/107 ED
2/4
U E
I K - 11 R S
/ 52 - 24
3.4 - GAIN (Scale factor regulation)
The “GAIN” potentiometer enables regulation of the relation between
the set reference value and maximum current supplied to the
solenoid and therefore the hydraulic parameter controlled by the
valve.
The maximum current of the card is limited to 1A for RSQ version
and to 1,8A for RSD version. See par. 6 for default values.
Rotate clockwise to increase current.
2 - FUNCTIONAL SPECIFICATIONS
The card requires a power supply of 22-30 V DC and
20
÷
45 W
(pin 2a/2c - 4a/4c).
Power supply voltage must be rectified and filtered, with maximum
admissible ripple within the above voltage range.
2.3 - Reference signal
The card accepts voltage reference signals (0 ÷ +10V) or current
signals (4÷20 mA).
N.B: If the signal is transmitted by potentiometer, please verify
that this has a load of at least 200
Ω
.
See par. 9 for electrical connections.
The diagram shows characteristics of valve spool position
according to the reference signal.
3 - SIGNALS AND ADJUSTMENT
The yellow LED indicates card power supply:
ON - normal power supply
OFF - no power supply, faulty power supply or blown fuse
3.5 - OFFSET (Offset current regulation)
The “OFFSET” potentiometer enables regulation of the offset
current of the valve. It is used to eliminate the insensitivity zone
(dead zone) of the valve.
The regulation field is from 0 to 0,5A for RSQ version and from 0 to
0,9A for RSD version.
The offset current is activated when the reference signal exceeds
the threshold of + 150 mV (or 4,25 mA).
The offset is not active and only the polarization current equal to 25
mA is present beneath this threshold.
NOTE:
The variation of the set value of the offset current causes a
corresponding variation of the scale factor value.
Rotate clockwise to increase current.
The UEIK-11RS*/52 card is an electronic control unit Eurocard type
for closed loop control of single solenoid proportional valves with
positional feedback control.
The card controls the position of the valve spool according to the
reference input signal enabling linear regulation and reduced
hysteresis.
The front panel is fitted with LEDs to indicate card functions and
potentiometers to optimise control.
3.3 - ENABLE
2.2 - Electrical protection
The card is protected against overvoltage and polarity inversion.
A 3,15A fast-acting fuse is fitted for power circuit protection.
2.1 - Electric power supply
3.2 - POWER ON
From 22 to 30 V DC (pin 24c) enable command is required for card
operation.
The condition of the card enable is shown by both a visible LED on the
front panel and as a contact available for the user on pins 6a and 6c.
The green LED indicates:
ON - card enabled
OFF - card disabled
Q
: version for flow contrl valves type RPCER1/52
D
: version for directional valves type DSE3F-S*
