ESBE Series ALFxx4 24V Actuator Installation Guide

ESBE Series ALFxx4 24V Actuator Installation Guide

INSTALLATION

1. Mounting positions:
   A=Allowed mounting position with fluid temperature between –20ºC to +120ºC.
   B= Allowed mounting position with fluid temperature between
   0ºC to +150ºC C=Not allowed mounting position.
   
   

2. Mount flange nut (A) and then the square nut (B) on top of spindle.

3. Bring the actuator into desired position by activating and turning the manual knob (more information on page 6), or reposition the valve itself.

4. Put the actuator on top of the valve. Fasten it to the neck of the valve by means of the U-bolt. Firmly tighten all nuts!

5. A: Stroke indicator B: Anti rotation guide

MANUAL OVERRIDE

There is a manual operation handle on the actuator. When handle is lowered manual operation is active, the power supply to the motor power stage circuitry is cut and the motor stop. The actuator can be operated manually and the valve positioned accordingly. The manual operation handle latches in position until it is raised again, then board and motor will be powered again. At the end of this operation the actuator moves to initial position (on the basis of DIP 1 setting) then it follows the control signal. When the manual override handle is engaged, the green and the red LED are on.

The actuator is supplied with the manual operation handle lowered/active.

CONNECTOR DESCRIPTIONS

To avoid damages to electronic components caused by the PCB bending, do not press too much while fixing the terminal block.

| DESCRIPTION| FUNCTION| MIN WIRE AREA| MAX WIRE LENGTH
---|---|---|---|---
V+| 16 VDC| Voltage output (Max load 25mA)| 0.5 mm2| 200 m
M| 0V (Common)
U| 2-10VDC| Feedback output signal (Max load 2mA)| 0.5 mm2| 200 m
M| 0V (Common)
Y| 0-10VDC*| Modulating control signal| 0.5 mm2| 200 m
M| 0V (Common)
Y1| | 3-point floating control signal| 0.5 mm2| 200 m
Y2|
Ln| 0V| Power Supply| 1.5 mm2| __ 75 m
L1| 24VAC/DC

See Chapter 5 and DIP switch 4−6 for available modulating control signal types.

ELECTRICAL CONNECTION

ALFxx4 contain a half-wave rectifier power supply. It shall not be powered with transformers that are used to power other devices using non isolated full-wave rectifier power supply. Use cable gland PG13,5 model (not supplied)

1. 3-point floating control mode

In floating control mode is only DIP switch 2 applicable. In floating control mode is DIP switch 7 used only to force manual calibration. During floating control mode the automatic calibration is not active.

1a. 3-point floating control mode (Sink connection)

Connect wires, pict. A. Connect (Ln+Y1) to extend (open) or (Ln+Y2) to retract (close) in floating control mode (Sink connection). Connect feedback signal if needed, pict. A. Start a calibration

1b. 3-point floating control mode (Source connection)

Connect power wires according to picture B. Connect (L1+Y1) to extend (open) or (L1+Y2) to retract (close) in floating control mode (Source connection). Connect feedback signal if needed, pict. B. Start a calibration

2. Modulating / proportional control mode

Connect power and control signal according to picture C. Connect feedback signal if needed, pict. C. Set the DIP switches according to information in chapter 5. Start a calibration.

DIP SWITCHES

It is not necessary to remove power supply to change DIP switch settings, but the 24V power supply must be consider. Before the cover on the actuator is removed and DIP settings are changed, the power to the actuator must be disconnected or manual operation handle active. After DIP settings are changed power up the actuator or inactivate manual operation  handle to activate the new settings

control mode, see picture D
3| –| Sequence control mode
4| Modulating control signal 0-10 VDC| Modulating control signal 2-10 VDC
__5| Sequence control signal 0-5 VDC with DIP switch 4 in OFF modeSequence control signal 2-6 VDC with DIP switch 4 in ON mode| Sequence control signal 5-10 VDC with DIP switch 4 in OFF mode Sequence control signal 6-10 VDC with DIP switch 4 in ON mode
6| Voltage input signal (VDC)| Current input signal (4-20mA) Note: DIP switch 4 must be in ON mode
7| Automatic Calibration: the actuator updates the stroke range if an unexpected mechanical stop is detected for at least 10 seconds| Manual Calibration: the actutor calibration is started moving the switch from OFF to ON; if the switch is left in ON the actuator will never update the calibrated stroke value even when an unexpected endpoint is detected

DIAGNOSTIC / ALARM FUNCTION

N°| LED| ERROR| WHEN| ACTUATOR BEHAVIOUR| TYPICAL TROUBLE SHOOTING CONDITION| RESET P ROCEDURE
---|---|---|---|---|---|---
| | | | Automatic Calibration SW7 OFF| Manual Calibration SW7 ON| |
1| RED ON| Calibrated stroke valve less than 5 mm| Calibration/ first installation| The actuator pushes/ pulls 5 times (unexpected stall) trying to remove the possible obstacle. After5 tries alarm is signalled (RED Led ON) and the actuator moves to initial position. Doesn’t respond to control signal. Stroke value is not updated beacuse out of range| The actuator pushes/pulls 2 times against endpoint during calibration. Alarm is signalled (RED led On) and the actuator moves to the initial position. Doesn’trespond to the control signal.| Valve with a strokelength lower than 5 mm| Remove power and power up again
2| RED ON| Stroke longer than 30/60 mm| Calibration/ first installation| The actuator exits the 30/60 mm stroke range and moves toward the new stroke limit signalling an anomaly (RED led on). The actuator doesn’t calibrate the stroke| The actuator pushes/pulls 2 times against endpoint during calibration. Alarm is signalled (RED led On) and the actuator moves tothe initial position and then it doesn’t reposnd to the control signal.| Valve with a stroke length longer than 30/60mm| Remove power and power up again
3| REDquick blinking+ GREEN ON| Unexpected stallwithin the calibrated stroke range| Normal operation| The actuator tries 5 times against the new stall condition. After 10 sec. the actuator updates the new stroke lenght. During these 10 sec. RED led is ON| The actuator tries 5 times against the new stall condition. After 10 sec. the actuator doesn’t update the new stroke lenght| Valve stuck| Inverted control signal
4| REDquick blinking+ GREEN ON| Stroke longer than expected| Normal operation| The actuator moves toward the new stall condition with a lower speed; after 10 sec. the actuator updates the new stroke value; During these 10 sec. RED led is ON| The actuator moves toward the new stall condition with a lower speed. After 10 sec. the actuator doesn’t update the new stroke value| Stem connection looseor valve damaged| Inverted control signal
5| REDslow blinking| Low Power Voltage| Normal operation| The actuator is still working but performance cannot be guaranteed| The actuator is still working but performance cannot be guaranteed| 1. Wrong transformersize| Correct Voltage Power
2. Unstable power
6| REDslow blinking| High Power Voltage| Normal operation| The actuator is still working but performance cannot be guaranteed| The actuator is still working but performance cannot be guaranteed| 1. Wrong transformersize| Correct Voltage Power
2. Unstable power

Quick = 2 flash / second
Slow = 1 flash / second
LED´s are placed on circuit board and are only visible when actuator cover is removed.

ACTUATOR STATUS

stroke read
3| Red Green Blinking| The actuator is reading the stroke or it is going to initial position
4| Red Green On| Manual operation active, the actuator ignores the control signal. ATTENTION! The PCB is electrically supplied

ESBE AB
Bruksgatan 22
SE‒333 75 Retile
www.esbe.eu

Mtrl.nr. 98141092 Ritn.nr. 6305 • vers C • Rev. 2023‒08‒10

References

• ESBE | Welcome to ESBE – world-class hydronic solutions

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