Приводы клапанов ALM, ALX, ALE

DS 3.401
11/99
ALM, ALX, ALE
LINEAR ACTUATORS
Specification no. 477-X-XXX†
Satchwell Linear Actuators type 'AL' are reversing actuators having a
linear output, for direct coupling to Satchwell lift and lay seat-type
control valves or other seat valves requiring a linear driver over stroke
lengths of up to 38mm (1½"), within the limits of output thrust stated
overleaf and with compatible mounting arrangements.
These actuators are suitable for either two-position or modulating
control, dependent on the controller or other switching device providing
the input signal. The ALM is suitable for a mains power supply, the ALX
is 24V, and the ALE is 24V, but accepts a 0-10Vdc input signal.
The ALE actuator can be set to operate a low hysteresis when used for
tight control applications on microprocessor based controllers such as
the KMC and MMC.
† For the full specification number replace the 4Xs with the
appropriate figures from the 'TYPE' column in the table
on page 2.
FEATURES
• Direct coupling to Satchwell seat valves without extra
mounting brackets or linkage kits, saving site time
• Direct coupling to other makes of seat valves, where stroke,
thrust and mounting are compatible
• Universal for valve strokes, up to 38mm (1½"). Actuator stroke
is self-setting to suit valve stroke, including ALE by simple
adjustment
• Alternative stroke times, to suit application
• Manual operation or override facility built-in
• Standard or low hysterisis selection on ALE to cater for
different application types
• Case sealed to IP 54 as standard
• Auxiliary switch kit available, see 'Accessories'
MLI 3.401 - Mounting Instructions
Valves
DS 4.410 - VZ, VSF, VZF
DS 4.610 - MZ, MJF, MZF
An Invensys company
DS 3.401
2 - 10
11/99
SPECIFICATIONS
TYPES
STROKE
POWER SUPPLY:
ALM 1601
ALX 1201
ALX 1251
ALE 1302
ALE 1327
ALE 1352
ALE 1376
Standard
Standard
Short
Standard
Standard
Short
Standard
220 to 240V +10% to -15%,
50/60 Hz
24V ±10%, 50/60 Hz supplied by a
transformer conforming to EN 60742
24V ±10%, 50/60 Hz
supplied by a transformer
conforming to EN 60742
4.5 VA
3.5 VA
3.5 VA
9.5 VA
12 VA
9.5 VA
12 VA
5A
0.75A
0.75A
–
–
–
–
RUNNING SPEED:
1.8 s/mm (46 s/in)
2.5 s/mm (64 s/in)
5.0 s/mm (127 s/in)
8.5 s/mm (216 s/in)
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–
–
•
–
–
–
•
–
–
•
–
–
–
–
•
–
•
–
–
–
–
•
–
•
–
–
–
MAXIMUM STROKE:
16 mm (5/8")
38mm (1½")
–
•
–
•
•
–
–
•
–
•
•
–
–
•
THRUST
311N
538N
–
•
–
•
•
–
–
•
–
•
•
–
–
•
POWER
CONSUMPTION:
LIMIT & TRANSFER
SWITCH RATING:
AUXILIARY
SWITCHES
Two 5A, 250V
Adjustable
Use kit 831-1-211
Two 5A,
250V
Adjustable
Use kit
831-1-211
Pulsed - Mains
(220 to 240Vac) Voltage
INPUT: CONTROL
SIGNAL (for
modulation)
One 5A,
250V
Fixed
Built-in
Pulsed - 24V
One 5A,
250V
Fixed
Built-in
Two 5A, 250V
Adjustable
Use kit
831-1-211
0-10Vdc
APPLICATION
Modulating control from any
Two-position control from
thermostat, time switch or other controller having a pulsed
switching device having (220/ 24V output.
240Vac) mains rated
changeover contacts.
Modulating control from any
controller having a 3-wire
mains output (220 to 240Vac).
ASSOCIATED
CONTROLLERS:
CMC, CSMC
CSC
Two 5A, 250V
Adjustable
Use kit 831-1-211
Modulating control from any controller providing a 0-10Vdc
positioning signal.
Start and Span adjustments, also DA/RA switch included.
Refer to 'Operation'.
MMC, CXR, CXT, IAC, URC MMC, KMC, DRTE, DDTE, DSTE, DWTE, MMC, KMC,
CZT, BAS, IAC
BAS, IAC
–
CSC
VSF up to 25mm
ASSOCIATED
VZ up to 2"
VALVES:
2 - Port: See DS 4.110
VSF up to 25mm
VZ up to 2"
3 - Port: See DS 4.610 MJF up to 50mm
MZ up to 2"
MZF up to 150mm
MJF up to 25mm
MZ up to 2"
VSF 32 to
50mm
VZF 65 to
150mm
MJF 32 to
50mm
MZF 65 to
150mm
VSF up to 25mm
VZ up to 2"
–
–
–
–
Reversing - modulating
Stroke Time:
See table above
Protection Class:
IP 54
Mounting Attitude:
See 'Installation Instructions' on page 5
Ambient Temperature Limits:
Operating: -20 to 50°C
Storage: -40 to 70°C
Max. Ambient Humidity:
Operation & Storage: 95% rh non-condensing
Manual Operator and Override:
Standard feature with all types
Auxiliary Switches: Kit 831-1-211 available for internal mounting.
Two voltage-free change-over switches rated 5A, 250V. Adjustable,
one from position 0 to 5, the other from position 5 to 10 (see Table on
page 2 for usage).
Spindle Adaptor: Kit 862-1-402, ¼" 32-UNEF female x 3/8" 24-UNF
male. One supplied with each actuator, except ALX 1251 and
ALE 1352, for which it is not required.
–
–
VSF 32 to
50mm
VZF 65 to
150mm
–
–
MJF 32 to
50mm
MZF 65 to
150mm
MJF up to 25mm
MZ up to 2"
Action:
ACCESSORIES
VSF 32mm to 50mm
VZF 65 to 150mm
MJF 32 to 50mm
MZF 65 to 150mm
11/99
3 - 10
DS 3.401
LINKAGE KITS
VALVE
MANUFACTURER
SPECIFICATION
VALVE
LNK 1501
Landis & Gyr
LNK 1502
Honeywell
VVF52
V5011A
LNK 1503
Fisher
Y Body ¾" to 1½", A Body 1½"
LNK 1504
Fisher
Y Body 2" to 3", A Body 2" to 4"
LNK 1505
Hymatic
1700 ¾" to 1½", 1450 1¼", 1400R 1½"
LNK 1506
Hymatic
1400R 2" to 3", 1700 2" to 3"
LNK 1521
Siebe
VB up to 2"
Note: Actuators ALX 1251 and ALE 1352 are short stroke actuators
and cannot connect to any valves using the linkage kits detailed in the
above table.
CONSTRUCTION
Case:
Mild steel baseplate with moulded polycarbonate housing and removable terminal cover (fire resistant
to UL94V-0).
Mounting Bracket:
Die cast aluminium
Protection Class:
IP 54
Drive:
Operates on screw-jack principle, driven by a reversible synchronous motor via a gear train.
Motor:
Split phase, capacitor reversing type, continuously rated.
Gear Ratio:
Standard speed
Medium speed
Fast speed
Super Fast speed
Spindle Coupling:
Freely rotating coupling, screwed:
/8" 24-UNF, female (ALM 1601, ALX 1201, ALE 1302, 1327, 1376)
¼" 32-UNEF, female (ALX 1251, ALE 1352)
(8.5 s/mm) 89:1
(5.0 s/mm) 51:1
(2.5 s/mm) 51:1
(1.8 s/mm) 27:1
3
Manual Operator & Override:
Hand operator with gear train disengagement feature.
Position Indicator:
Spindle anti-rotation plate moves against stroke scale on mounting bracket. Marked 0 to 10,
representing 0 to 100% stroke. Fix scale to suit valve stroke, see 'Commissioning'.
Limit & Transfer Switches:
ALM & ALX: Load dependent switches, self-adjusting to match valve stroke. Control signal transfers
from terminal 1 to 1T and 2 to 2T at respective limits of valve stroke (not electrically separate).
ALE: Limit switches operate as for other actuators, but are internally connected between electronics
card and motor windings. The transfer function is not necessary as multi-stage sequencing is derived
from the 0-10 Volt output signals from the MMC or other multi-stage controllers.
Electronic Positioner:
(ALE only)
Built-in printed circuit board connected by plug and socket for easy servicing. Internally connected to
1000 Ohm position feedback potentiometer, driven via gears from output shaft. Separate 0-10Vdc
output signal available to monitor position or as a service aid.
Terminals:
Accept 2 x 1.5mm² or 1 x 2.5mm² cable
Conduit Entries:
Three x 21mm dia. knockout (detachable plate). (Use only bottom two on ALE.)
Auxiliary Switches:
Available as add-on accessory, see 'specification'.
Note: ALX 1251 and ALE 1352 have one voltage-free single pole change-over switch rated 5A, 250V,
built-in. Operating point, non-adjustable, is just before limit switch at position '0'.
VALVE STROKE TIME
This table gives total stroke time related to type, size and stroke of valve with type of actuator used.
VALVE TYPE AND SIZE
VALVE
STROKE
VALVE STROKE TIME (Secs)
Actuator speed Actuator speed Actuator speed Actuator speed
8.5 s/mm
5.0 s/mm
2.5 s/mm
1.8 s/mm
VZ & MZ
½" & ¾"
VSF & MJF 15mm
9.5mm (3/8")
81
48
24
17
VZ & MZ
1"-2"
VSF & MJF 20, 25mm
15.9mm (5/8")
135
80
40
29
VSF & MJF 32-50mm
VZF & MZF 65-100mm
25.4mm (1")
216
–
64
46
VZF & MZF 125, 150mm
38mm (1½")
323
–
95
69
DS 3.401
4 - 10
11/99
OPERATION
WHEN ACTUATOR IS OPERATING BEWARE OF TRAPPING
FINGERS ETC.
The following adjustments are made on the electronic printed circuit
board, accessible behind the removable front cover.
The stroke of the 'AL' Linear Actuator is self-setting, using loaddependent switches, and is determined by the stroke of the valve. The
ALE requires only a simple adjustment. Consequently, all
specifications of actuator are universal and can be fitted to any seat
valve having a stroke length within its nominal range, see details under
'Specifications' on page 2 and 'Valve Stroke Time' on page 3.
ADJUSTMENT MARKED
Auto
position
Manual
position
The drive can be disconnected for manual operation. A button located
on the top surface of the enclosure is connected to a spring loaded
push rod assembly. When depressed this moves the 2nd gear out of
mesh, this mechanism can be locked in place by moulded ledges in the
housing. Adjacent to this is a manual operation key, which is clipped in
place on the top surface of the enclosure. The key can be fitted into a
slotted feature in the end of the main drive shaft, which protrudes
through the top surface of the enclosure. With the drive shaft
disconnected from the gearbox/motor the manual operation key can be
used to provide manual operation of the actuator.
ALM and ALX Actuators
The load-dependent switches perform a combined limit and transfer
function. The limit switches de-energise the actuator at the end of
stroke, whilst the transfer switches are used basically for sequence
operation in multi-stage applications. Where additional switching or
interlocking functions are required, use the add-on auxiliary switch
accessory or built-in auxiliary switch detailed under 'Specifications'.
When energised between terminals 1 and 3, the actuator moves its
spindle towards the fully extended position, to open a Satchwell 2-port
or 3-port valve to the heat exchanger.
Conversely, when energised between terminals 2 and 3, the actuator
moves its spindle towards the fully retracted position, to close the
valve.
The load-dependent limit switches transfer the control signal from
terminal 1 to 1T and from terminal 2 to 2T at the respective limits of
valve stroke.
ALE Actuators
The ALE incorporates an electronic positioner and provides
modulating control from any controller having a 0-10Vdc output. Using
the 'START' and 'SPAN' adjustments, the actuator can be set to make
a complete stroke over any span from 4 to 10 volts, starting at any point
within the signal range, providing the sum of 'START' Volts plus 'SPAN'
Volts does not exceed 10. The load-dependent limit switches operate
basically as described for the ALM and ALX, but are internally
connected between the electronics card and the motor windings.
Where additional switching or interlocking functions are required, use
the add-on auxiliary switch accessory or built-in auxiliary switch
detailed under 'Specifications'.
A separate 0-10Vdc output is available (terminal 11) for indicating
actuator position to a Building Management System or as a Service
and Commissioning aid.
ALE actuators can be set to operate a low hysteresis when used for
tight control applications on microprocessor based controllers. The
hysterisis is set by using a jumper link on the actuator PCB (see the
commissioning section for details). A low hysterisis setting gives 200
steps between 0 and 10Vdc input and the standard setting gives 25
steps.
Slide Switch
FUNCTION
Factory
set at:
Selects Direct or Reverse Action
signifies increase of actuator
position with increasing input
dc Volt signal.
signifies the reverse of this.
Potentiometer
START
(0-10V)
Sets the command signal voltage
at which the actuator
commences to move from zero
position.
0V
Potentiometer
SPAN
(4-10V)
Sets the change in command
signal Voltage which will cause
actuator to move through
complete stroke to positing 10.
10V
Potentiometer
STROKE Matches operation of actuator to
desired valve stroke.
16mm
ALE ACTUATOR POSITION FOR TYPICAL SETTINGS OF 'START',
'SPAN' AND 'ACTION'
Slide switch at
Actuator
Position
Signal Volts
Fig.1
Slide switch at
Actuator
Position
Signal Volts
AUXILIARY SWITCHES
An auxiliary switch kit 831-1-211, comprising two single-pole
changeover switches, is available as a separate accessory. The two
electrically-separate switches can be independently set, one to
operate at any point between positions 0 and 5 and the other between
positions 5 and 10.
(Not applicable to ALX 1251 or ALE 1352, which have one fixed
auxiliary switch built in).
11/99
5 - 10
DS 3.401
INSTALLATION
Observe the following IMPORTANT points:
WARNINGS WHEN OPERATING A VALVE HANDLING FLUID ABOVE 100°C, DO
NOT MOUNT ACTUATOR ABOVE VALVE, BUT TO ONE SIDE.
WHEN ACTUATOR IS OPERATING BEWARE OF TRAPPING
FINGERS ETC.
Do not switch on power supply until commissioning checks have
been completed - see page 7.
• Ambient temperature must be within limits -20 to 50°C.
• Do not install valve with actuator directly underneath it.
• Allow sufficient clearance for fitting and wiring, also minimum of
110mm between manual operator knob and nearest obstruction.
• Complete mechanical fitting of actuator to valve BEFORE
introducing steam into the pipeline (purging) or damage may
occur to the actuator spindle or valve plug.
Note: The following diagrams are typical internal views (ALX 1251
and ALE 1352 are not shown).
•
connecting electrical wiring. This avoids damage which may occur,
due to load-dependent limit switches not being operated.
• Steam Applications: Following a shutdown of the steam system • Ensure location is reasonably clean and dry.
it is important that the control valve is fully open before
• Do not apply power unless the actuator is fitted to a valve.
ACTUATOR FITTING INSTRUCTIONS
1. a. Actuators ALM 1601, ALX 1201 and ALE 1302, 1327, 1376 are supplied
with adaptor 'A' fitted, for direct coupling to valves with ¼" diameter spindle.
When coupling any of these actuators to valves with 3/8" diameter spindle,
first loosen locknut 'F' then remove and discard adaptor 'A'.
b. Actuators ALX 1251 and ALE 1352 have coupling 'E' to suit valves with ¼"
diameter spindle only. Adaptor 'A' is not applicable.
2. Remove lug nut 'C' from valve bonnet, locate actuator mounting bracket over
valve bonnet, replace lug nut and tighten, with actuator correctly positioned to
give clear access for conduit entry and wiring.
3. For size 125 and 150mm valves, remove and discard lug nut and fix actuator
mounting bracket to valve bonnet, using the four screws 'D' supplied.
4. Lift valve spindle into actuator coupling 'E' or adaptor 'A', as applicable and
screw on fully. Do not over-tighten. Lock using nut 'B' supplied. Use manual
operator to position coupling 'E' to required extension, as necessary,
particularly when assembling to small size valves, but avoid over-extending or
retracting actuator spindle to prevent malfunction or damage.
5. If subsequently removing the actuator to service valve gland, for example, it is
IMPORTANT to isolate power supply to controller or actuator or otherwise
select the 'Manual' position on the manual operator push button. This will avoid
malfunction or damage due to actuator spindle being accidentally driven
beyond its normal stroke limits.
WARNING
LABEL
Fig.2
WIRING
1. Remove cover 'A' and conduit plate 'B' (see Fig.3). Fit flexible
conduit to plate, allowing sufficient length to permit removal of the
actuator.
2. Connect cables in accordance with system wiring diagram or refer to
diagram inside cover in conjunction with controller diagram. Earth
actuator, where applicable, using the top (ALM, ALX) or bottom
(ALE) terminal screw. Observe 'Wiring precautions' (page 7). Keep
wiring clear of internal moving parts.
3. Replace conduit plate and cover.
Caution
Do not switch on power supply until commissioning checks 1 to 6
have been completed.
A
Fig.3
DS 3.401
6 - 10
11/99
FITTING AUXILIARY SWITCHES - KIT 831-1-211
WARNING AUXILIARY SWITCHES MAY BE AT MAINS POTENTIAL.
Note: When used with the ALE actuator, fit auxiliary switch kit AFTER
carrying out stroke setting procedure. See 'Commissioning'.
8. Now energise actuator, or use manual operator, to run actuator in
1. Remove cover.
opposite direction to position at which second switch is required to
2. Undo fixing screw of main terminal block bracket 'A' and reposition
operate, then repeat the setting procedure, as items 5 & 6.
adjacent to conduit entry (Fig.4). Use the locating hole to position
9. Connect cables in accordance with system wiring diagram. Ensure
bracket and tighten fixing screw. (Not applicable to ALE).
that all wiring is kept clear of internal moving parts. Replace cover.
3. Push the switch operating rod 'C' into the large hole in the base of
4.
5.
6.
7.
the actuator case (see Fig.5) until it clicks into the anti-rotation
bracket (G above).
Fit auxiliary switch kit bracket 'B' in original position of main
terminals, adjacent to vertical switch operating rod 'C' (Fig.5). Use
the locating holes provided and tighten fixing screws.
Note that micro-switches are adjustable, one (S1, S2 & S3) between
actuator positions 0 and 5, the other (S4, S5 & S6) between
positions 5 and 10.
To adjust the switches, energise actuator (if commissioning in
progress) at correct voltage and run to position at which one switch
is required to operate. Alternatively, use manual operator facility.
Loosen micro-switch fixing screws 'D' and slide assembly with
terminal block to point at which vertical operating rod 'C' just
operates switch (Fig.6). Hold assembly in this position and re-tighten
fixing screws.
Fig.4
Fig.6
Fig.5
11/99
7 - 10
DS 3.401
COMMISSIONING
WARNING WHEN ACTUATOR IS OPERATING BEWARE OF TRAPPING
FINGERS ETC.
BEFORE SWITCHING ON POWER SUPPLY:
ALM and ALX Actuators
1. Check that all control equipment is correctly located and fitted.
2. Check ambient temperature conditions.
3. Check that actuator has been correctly assembled to valve, up to
the stage when electrical power is called for.
4. Remove terminal cover and check that all control circuit wiring is
correct and in accordance with the overall control system wiring
diagram. Check that the electrical supply voltage is correct.
5. Note: Wiring errors not only cause malfunctions; they may also
damage controllers and/or actuators.
6. Replace terminal cover. Set manual override push button to 'Auto'
position.
7. Now switch on power supply.
8. Check that the actuator functions correctly by operating the
controlling switch or adjusting the controller set value above and
below the temperature (or humidity) currently existing at the sensor
(or simulated). This must be within the scale limits.
ALE Actuators
BEFORE SWITCHING ON POWER SUPPLY:
• Check that all control equipment is correctly located and fitted.
• Check ambient temperature conditions.
• Check that actuator has been correctly assembled to valve, up to the
stage when electrical power is called for.
• Remove terminal cover and check that all control circuit wiring is
correct and in accordance with the overall control system wiring
diagram. Check that the electrical supply voltage is correct.
Note: Wiring errors not only cause malfunctions; they may also
damage controllers and/or actuators.
Setting the Actuator
The following instructions MUST be followed to initially set the actuator
stroke and each time the actuator is transferred to a different valve.
Set all adjustments as follows (see Fig.8):
Adjustment
Setting
START 'C'
10
SPAN 'D'
10
STROKE 'A'
max. (fully clockwise)
DA/RA SWITCH 'B'
+ (DA)
HYSTERESIS JUMPER 'G' A-B or B-C
If the actuator forms part of a multi-stage system in which several
actuators operate in sequence, wait until the appropriate stage is
reached.
9. Whilst checking actuator travel over full stroke of valve, run
actuator to fully retracted position. Select self-adhesive indication
scale to match valve stroke, from set of four scales provided. Fix
scale along outside edge of actuator mounting bracket, in position
where it will be most clearly visible, lining up top edge of antirotation plate on actuator spindle with position '0' on scale (Fig.7).
10. If auxiliary switches are fitted, remove terminal cover to check for
correct operation and switching functions. Replace terminal cover.
Fig.8
1. Set manual override push button to 'auto' position.
2. Remove wire from terminal 9, ensuring a 0Vdc supply.
Fig.7
ALM, ALX WIRING PRECAUTIONS
WARNING ALM ACTUATORS AND AUXILIARY SWITCHES (WHERE FITTED)
ARE AT MAINS POTENTIAL. OBSERVE LOCAL WIRING
REGULATIONS, EARTHING REQUIREMENTS AND ALL USUAL
SAFETY PRECAUTIONS.
Wiring from actuator Max. length of 1.5mm²
to controller*:
cable unscreened
24V/240V~ Supply
100m
Max. resistance
per conductor
5Ω
* When wiring to BAS outstations refer to the appropriate outstation
data sheet for the wiring precautions.
For longer lengths, increase cable size and observe max. resistance.
Screen feedback wiring, or use MICC or run in a separate conduit,
when applicable.
Caution
Do not connect ALM or ALX actuators in parallel.
3. Switch on 24V supply. The actuator drive screw will run until it is
fully retracted (position 0) operating its limit switch.
4. Wait until the drive screw has stopped moving before continuing.
5. Loosen the pot fixing screw 'H'. By sliding the pot assembly
towards you, disengage gear 'E' from the main drive shaft. Turn the
pot gear 'E' by hand in the anti-clockwise direction (when viewed
from above) until the end stop is reached. Gently slide the pot
assembly back into position so that the pot gear 'E' engages with
the main drive shaft. Do not apply too much force in meshing the
gears as over pressure will result in reduced life. Re-tighten the
location fixing screw 'H'.
6. Check that the voltage between terminal 7 and 11 is 0.1V ±100mV.
7. Reconnect wire to terminal 9.
8. Adjust controller set value to give 10Vdc output.
9. Check that the Voltage between terminals 7 and 9 is approximately
10Vdc.
10. Change the 'START' setting from '10' to '0'. The actuator drive
screw will now run until it is fully extended (position 10).
11. Wait until the drive screw has stopped moving before continuing.
12. Adjust the 'STROKE' setting in an anti clockwise direction until
Voltage measured between terminals 7 and 11 is 9.9V ±100mV.
13. Select and fix the appropriate self-adhesive stroke indication label
to the actuator bracket. The relevant stroke length can be found on
the appropriate Satchwell data sheet for the valve being used.
14. Re-set 'START', 'SPAN' and 'DA/RA' adjustments as required, to
suit control system. DO NOT alter 'STROKE' setting. Re-check
operation by adjusting controller set value so that actuator runs to
position '0'. If limit switch does not operate, adjust 'START' setting
very slightly anti-clockwise for 'DA' switch mode (clockwise for 'RA'
switch mode) until limit switch does operate. Now adjust controller
set value so that actuator runs to position '10'. If limit switch does
not operate, adjust 'STROKE' setting very slightly clockwise for DA
and anti-clockwise for RA until limit switch does operate. Re-adjust
controller set value as required, to suit control system.
DS 3.401
8 - 10
15. Set the required hysterisis for the actuator using jumper 'G'. Low
hysteresis (200 steps) is used for tight control applications using
microprocessor based controllers and standard hysteresis (25
steps) is used for analogue controllers and standard applications.
See the table below for details:Jumper 'G' set to
A-B
200 Steps
Jumper 'G' set to
B-C
25 Steps
10Vdc
0Vdc
0Vdc
MMC, KMC, IAC, BAS
DRTE, DDTE, DWTE,
CZT
10Vdc
Yes
Yes
No
Yes
16. Fit, set and check auxiliary switches, if used, as described for ALM
and ALX (section 9).
17. Replace terminal cover.
ALE WIRING PRECAUTIONS
WARNING IF AUXILIARY SWITCHES ARE FITTED AND USED AT MAINS
POTENTIAL, OBSERVE LOCAL WIRING REGULATIONS,
EARTHING REQUIREMENTS AND ALL USUAL SAFETY
PRECAUTIONS.
Wiring from actuator Max. length of 1.5mm²
to controller*:
cable unscreened
24V/240V~ supply
100m
0-10Vdc signal
100m
Max. resistance
per conductor
5Ω
50Ω
* When wiring to BAS outstations refer to the appropriate outstation
data sheet for the wiring precautions.
For longer lengths of 24 Volt supply wiring, increase cable size and
observe maximum resistance, also run separate return from terminal 7,
as Fig.12.
Terminals 7 and 10 are both at ground potential, provided for
convenience of wiring.
Where screening is required, use either screened cable, MICC or
cables run in a separate conduit.
11/99
11/99
9 - 10
DS 3.401
CONNECTION DIAGRAMS
BASIC DIAGRAM FOR ALM MAINS ACTUATORS
Signal on 1 drives towards '10'
Signal on 2 drives towards '0'
BASIC DIAGRAM FOR ALX 24 VOLT ACTUATORS
Signal on 1 drives towards '10'
Signal on 2 drives towards '0'
Note: Do not connect
ALM actuators in parallel
Note: Do not connect
ALX actuators in parallel
Controller
Thermostat or other
switching device
Auxiliary Switch
ALX 1251 only
S4 makes to S5 at position '0'
Non-adjustable
WARNING MAINS VOLTAGE ISOLATORS MUST CONFORM TO EN 60335-1.
Fig.9
BASIC DIAGRAM FOR ALE ACTUATORS
WARNINGS AUXILIARY SWITCHES MAY BE AT MAINS POTENTIAL.
MAINS VOLTAGE ISOLATORS MUST CONFORM TO EN 60335-1.
24VAC DEVICES MUST BE SUPPLIED BY A TRANSFORMER
Fig.10
CONFORMING TO EN 60742.
SEPARATE 24 VOLT POWER SUPPLY TO ALE
Controller
Controller
Ring Main
Auxiliary Switch
ALE 1352 only
Auxiliary Switch
ALE 1352 only
S4 makes to S6 at position '0'
Non-adjustable
S5 makes to S6 at position '0'
Non-adjustable
WARNINGS AUXILIARY SWITCHES MAY BE AT MAINS POTENTIAL.
MAINS VOLTAGE ISOLATORS MUST CONFORM TO EN 60335-1.
24VAC DEVICES MUST BE SUPPLIED BY A TRANSFORMER
Fig.11
CONFORMING TO EN 60742.
WARNINGS AUXILIARY SWITCHES MAY BE AT MAINS POTENTIAL.
MAINS VOLTAGE ISOLATORS MUST CONFORM TO EN 60335-1.
24VAC DEVICES MUST BE SUPPLIED BY A TRANSFORMER
Fig.12
CONFORMING TO EN 60742.
TWO-STAGE SEQUENTIAL OPERATION
from one 0-10 volt command signal incorporating dead zone
STAGE 1
(Heating)
STAGE 2
(Cooling)
Controller
Dead
Zone
Set 'Switch' to
Set 'START' to
Set 'SPAN' to
0V
4V
6V
4V
Controller Output Signal
OUTPUT DIAGRAM
STAGE 1
(Heating)
STAGE 2
(Cooling)
AUXILIARY SWITCH 831-1-211
Adjustable over
range 0-5
230Vac
Auxiliary
Switches
Adjustable over
range 5-10
S4 makes to S6 at '0', or set position
S1 makes to S2 at '10', or set position
WARNINGS AUXILIARY SWITCHES MAY BE AT MAINS POTENTIAL.
MAINS VOLTAGE ISOLATORS MUST CONFORM TO EN 60335-1. Fig.14
Fig.13
DS 3.401
10 - 10
11/99
DIMENSION DRAWING
Allow 110mm for removing
actuator from valve
3-21mm
conduit
entries
Dimension in mm
Refer to 'Maximum Stroke' details
Short Stroke Version
*H = 265mm (height)
Standard Stroke Version
*H = 310mm (height)
Weight: 2.2Kg approx,
Weight: 2.4Kg approx,
Satchwell Control Systems Limited
Farnham Road
Slough
Berkshire SL1 4UH
United Kingdom
Telephone +44 (0)1753 550550
Facsimile +44 (0)1753 824078
www.satchwell.com
An Invensys company
WARNINGS CERTAIN MODELS (AND AUXILIARY SWITCHES WHERE FITTED) ARE
AT MAINS POTENTIAL. LOCAL WIRING REGULATIONS AND USUAL
SAFETY PRECAUTIONS MUST BE OBSERVED. NOTE EARTHING
REQUIREMENTS.
MAINS VOLTAGE ISOLATORS MUST CONFORM TO EN 60335-1.
WHEN ACTUATOR IS OPERATING BEWARE OF TRAPPING FINGERS
ETC.
Cautions
• 24Vac devices must be supplied by a transformer conforming to
EN 60742.
• Observe installation instructions on page 5.
• Observe wiring precautions on page 7.
• Do not apply power unless the actuator is fitted to a valve.
• Do not switch on power supply until commissioning checks have
been completed - see page 7.
• Ensure wires are not inadvertently crossed over. Wiring errors not
only cause malfunctions; they may also damage controllers and/or
actuators.
• Steam Applications: Following a shutdown of the steam system it is
important that the control valve is fully open before introducing
steam into the pipeline (purging) or damage may occur to the
actuator spindle or valve plug.
• Observe maximum and minimum ambient temperatures.
• Check thrust requirements and maximum differential of pressure of
valve to be driven. Do not exceed rated output thrust.
• Interference with those parts under sealed covers renders the
guarantee void.
• Design and performance of Satchwell equipment are subject to
continual improvement and therefore liable to alteration without
notice.
• Information is given for guidance only and Satchwell do not accept
responsibility for the selection and installation of its products unless
information has been given by the company in wiring relating to a
specific application.
© 1995 Satchwell Control Systems Limited (revised November 1999)
All rights reserved. Unauthorised copying of any part of the contents is prohibited.
Printed in England. 11/99