Schischek ExMax CTS Series User manual

EXPLOSIONPROOF
ExMax - ... - F1
ExMax - ... - SF1
ExMax - ... - BF1
ExMax - ... - CTS
ExMax - ... - VAS
ExMax-...-F1
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-S-F1_en
V07 – 19-Oct-2021
Subject to change!
Compact. Easy installation. Universal. Cost effective. Safe.
Product views and applications
Description Highlights
Safety damper Ball valve Throttle valve
Electrical, explosion proof rotary actuators with integrated Ex-i circuit (optional)
On-off control mode, 24…240 VAC/ DC, 95° angle of rotation incl. 5° pretension
8 Nm, 15 Nm with safety operation: fast spring return ~ 1 s*
ATEX tested in acc. with directive 2014/34/EU for zone 1, 2, 21, 22
Type Torque Supply Motor running time Spring return* Control mode Feedback Wiring diagram
ExMax- 8 - F1 8 Nm 24...240 VAC/DC 3 / 15 / 30 / 60 / 120 s/90° ~ 1 s/90° On-off – SB 2.4/2.5
ExMax- 15 - F1 15 Nm 24...240 VAC/DC 3 / 15 / 30 / 60 / 120 s/90° ~ 1 s/90° On-off – SB 2.4/2.5
ExMax- 8 - SF1 8 Nm 24...240 VAC/DC 3 / 15 / 30 / 60 / 120 s/90° ~ 1 s/90° On-off 2 × aux. switches SB 2.4/2.5 + 3.2
ExMax- 15 - SF1 15 Nm 24...240 VAC/DC 3 / 15 / 30 / 60 / 120 s/90° ~ 1 s/90° On-off 2 × aux. switches SB 2.4/2.5 + 3.2
ExMax- 8 - BF1 8 Nm 24...240 VAC/DC 3 / 15 / 30 / 60 / 120 s/90° ~ 1 s/90° On-off 2 × aux. switches + Ex-i tripping circuit SB 2.4/2.5 + 7.4
ExMax- 15 - BF1 15 Nm 24...240 VAC/DC 3 / 15 / 30 / 60 / 120 s/90° ~ 1 s/90° On-off 2 × aux. switches + Ex-i tripping circuit SB 2.4/2.5 + 7.4
ExMax- ... - CTS Types as above with aluminium housing and seawater resistant coating (cable glands brass nickel-plated)
ExMax- ... - VAS Types as above with stainless steel housing for aggressive ambient (cable glands brass nickel-plated)
ExMax ¼ turn actuators – size S
►For all types of gases, mists, vapours and dusts in zones 1, 2, 21 and 22
►Universal supply unit from 24…240 VAC/DC
►5 different motor running times 3–15–30–60 –120 s/90°, adjustable on site
►On-off control with fast spring return function
►Ex-i circuit for direct connection of the ...Pro-TT-... safety temperature trigger
(type ...-BF1)
►2 integrated auxiliary switches, switching at 5° und 85° (type ...-SF1 and ...-BF1)
►100 % overload protected
►Compact design and small dimension (L × W × H = 210 × 95 × 80 mm)
►Direct coupling to the damper shaft with double square connection 12 × 12 mm
►95° angle of rotation inclusive 5° pretension
►Robust aluminium housing (optional with seawater resistant coating) or in stainless steel
►IP66 protection
►Simple manual override included + preparation for comfortable manual override
►Gear made of stainless steel and sinter metal
►Weight only ~ 3,5 kg
►Integrated heater for ambient temperatures down to −40 °C
►Integrated safety temperature sensor
►Integrated equipment for manual adjustment (push button, lamp, switch)
►Preparation for adaptable and adjustable auxiliary switches type ...Switch
The ExMax actuators are a revolution for safety, control and shut-off
dampers and other motorized applications for HVAC systems in chemical,
pharmaceutical, industrial and offshore/onshore plants, for use in Ex-areas
zone 1, 2 (gas) and zone 21, 22 (dust).
Highest protection class (ATEX) and IP66 protection, small dimensions,
only 3,5 kg weight, universal functions and technical data, an integrated
heater and an optional stainless steel housing guarantee safe operation
even under difficult environmental conditions. High quality brushless
motors guarantee long life.
All actuators are programmable and adjustable on site. Special tools or
equipment are not required. Motor running times are selectable on site.
The integrated universal power supply is self adaptable to input voltages
in the range of 24...240 VAC/DC. The actuators are 100% overload
protected and self locking.
...Max-...-F1 actuators are equipped with spring return fail safe function.
Additionally the ...Max-...-SF1 and ...-BF1 actuators are equipped with
2 integrated, potential free auxiliary switches each and ...Max-...-BF1
comes with an intrinsically safe tripping circuit for connecting the ...Pro-TT-...
safety temperature trigger. Standard shaft connection is a double square
direct coupling with 12 × 12 mm.
Different accessories are available to adapt auxiliary switches, terminal
boxes or adaptions for ball valves and throttle valves and other armatures.
*at temperatures below −20 °C, depending on the load, the spring return period can be up to 20 sec. If fast spring return below −20 °C is required, please contact our sales support.
Please note that nominal values are also subject to tolerances.
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EXPLOSIONPROOF
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-S-F1_en
V07 – 19-Oct-2021
ExMax-...-F1 ExMax-...-SF1 ExMax-...-BF1
Special options ... -CTS ... -VAS
Torque motor (min.) 8 Nm 15 Nm 8 resp. 15 Nm 8 resp. 15 Nm
Torque spring (F) min. 8 Nm min. 15 Nm min. 8 resp. 15 Nm min. 8 resp. 15 Nm
Torque blockade In blockade and end positions torques are higher than above specified torques for motor and spring.
Dimensioning of external load Upon spring return the external load should be max. 80 % of torque spring (F), but
min. 2 Nm min. 5 Nm min. 2 resp. 5 Nm min. 2 resp. 5 Nm
Supply voltage / frequency 24...240 VAC/DC ± 10 %, self adaptable, frequency 50...60 Hz ± 20 %
Power consumption max. starting currents see Extra information (in acc. with voltage, I start >> I rated ), approx. 5 W holding power, approx. 16 W for heater
Protection class Class I (grounded)
Angle of rotation and indication 95° incl. ~ 5° pretension, mechanical value indication
Working direction Selectable by left/right mounting to the damper/valve shaft
Motor running times 3 / 15 / 30 / 60 / 120 s/90° selectable on site
3 sec. mode – motor In acc. with the supply voltage and external torque 3 to 4 s/90° angle of rotation
Motor Brushless DC motor
Control mode On-off
Spring return (F) Spring return upon voltage interruption or opening of line 3, response time up to 1 sec. after voltage interruption
Spring return running time (F) ~ 1 s/90° (at temperatures below -20 °C, depending on the load, the spring return period can be up to 20 s.)
Safety operations at 1 sec. (F) min. 1,000 acc. to construction of damper and ambient. Consider minimum external load!
Ex-i tripping circuit ...-BF1 Intrinsically safe circuit to connect the ExPro-TT-... safety temperature trigger directly to the actuator with M12 quick connection
Aux. switches ...-SF1, ...-BF1 2 integrated auxiliary switches, switching at 5° and 85° angle of rotation, potential free. Grid fuse-protection is recommended!
Umax/ Imax AC = 250 V/5 A; Umin AC/DC = 5 V; After one-time operation with U > 24 V AC/DC or I > 100 mA: Umin AC/DC = 12 V
Umax/ Imax DC = 48 V/1 A; Imin AC/DC = 5 mA; Imin AC/DC = 100 mA
Axle of the actuator Double square 12 × 12 mm, direct coupling, 100 % overload protected
Electrical connection Cable ~ 1 m, wire cross section 0.5 mm², equipotential bonding 4 mm².
Connections in hazardous areas require an Ex-e terminal box!
Diameter of cable ~ Ø 6.2 mm ~ Ø 6.2 mm ~ Ø 6.2 + 7.4 mm ~ Ø 9.3 mm
2 cables in version ...-SF1
Cable gland M16 × 1.5 mm
Manual override Use delivered socket wrench, max. 4 Nm
Heater Integrated, controlled heater for ambient temperature down to −40 °C
Housing material Aluminium die-cast housing, coated. Optional with seawater resistant coating (...-CTS) or stainless steel housing,
№1.4581 / UNS-J92900 / similar AISI 316Nb (...-VAS)
Dimensions (L × W × H) 210 × 95 × 80 mm, for diagrams see Extra information
Weight ~ 3,5 kg aluminium housing, stainless steel ~ 7 kg
Ambients Storage temperature −40…+70 °C, working temperature −40…+40 °C at T6 and −40…+50 °C at T5
Humidity 0...90 % rH, non condensing
Operating 3 sec. motor run time In 3 s mode the motor will work only after 1 minute of voltage supply. While open/close operation (open voltage supply and shut it down)
motor works only with speed of 15 s/90°
≥15 sec. motor run time at 15 / 30 / 60 / 120 s 100 % of ED is permitted (ED = duty cycle)
Maintenance Maintenance free relative to function, maintenance must comply with regional standards, rules and regulations
Wiring diagrams SB 2.4/2.5 SB 2.4/2.5 SB 2.4/2.5 + 3.2 SB 2.4/2.5 + 7.4
Scope of delivery Actuator, 4 screws M4 × 100 mm, 4 nuts M4, Allen key for simple manual override
Parameter at delivery 8 Nm, 30 s/90° 15 Nm, 30 s/90° 8 resp. 15 Nm, 30 s/90° 8 resp. 15 Nm, 30 s/90°
Approbations
Technical data ExMax- 8 - F1 ExMax- 15 - F1 ExMax-... - SF1 ExMax-... - BF1
ATEX Directive 2014/34/EU
EU-Type Examination EPS 17 ATEX 1 132 X
IECEx Conformity IECEx EPS 17.0065X
Marking Gases II 2 (2) G Ex db [ib Gb] IIC T6, T5 Gb
Types ...-CTS II 2 (2) G Ex db [ib Gb] IIB T6, T5 Gb
Marking Dusts II 2 (2) D Ex tb [ib Db] IIIC T80°C, T95°C Db
Ex-i circuit data see table (T 1.0)
CE Marking CE 0158
EMC Directive 2014/30/EU
Low Voltage Directive 2014/35/EU
Enclosure Protection IP66 in acc. with EN 60529
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EXPLOSIONPROOF
ExMax- 8 -...F1 ►
ExMax- 15 -...F1 ►
8 Nm
15 Nm
▼
3 s/90° ►
15 s/90° ►
30 s/90° ►
60 s/90° ►
120 s /90° ►
00
01
02
03
04
05
06
07
08
09
ExBox
S
T
a
a
a
+
~
+
~
+
~
+
~
−
~
−
~
−
~
−
~
PE
PE
PE
PE
1
1
1
1
2
2
2
2
3
3
3
3
PA
PA
PA PA
4
1
7
4
5
2
6
3
8
5
9
6
< 5°
< 5°
> 85°
> 85°
1 2
°C
ExPro-TT
U < 90 V AC/DC 2 AT 10 AT
U > 90 V AC/DC 5 AT 10 AT
U < 90 V AC/DC 2 AT 10 AT
U > 90 V AC/DC 5 AT 10 AT
Uo= 5,88 V
Io= 24,75 mA
Po= 37 mW
Ci= 0
L i= 0
IIC IIB IIA
Lo50 mH 50 mH 50 mH
Co43 μF 1000 μF 1000 μF
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-S-F1_en
V07 – 19-Oct-2021
ExMax-...-F1 ExMax-...-SF1 ExMax-...-BF1
Special options ... -CTS ... -VAS
Electrical connection Parameters, adjustments and failure indication
Parameter selection
Functions, adjustments and parameters
Type
Running times Position of switch (S)
Torques
Example:
ExMax-15-BF1
Requested parameter:
Torque 15 Nm
Motor running time 30 s/90°
Result:
Switch position 02
Installation
Ex area –
zone 1, 2, 21, 22 Safe area
Supply *
24...240 VAC/DC ± 10 %
* electrical wiring see diagrams
Switch – Push button – Lamp
for adjustment
(behind the blanking plug)
10-position switch (S)
Push button (T)
3-colour LED
All actuators are equipped with a universal supply unit working at a voltage range from
24...240 VAC/DC. The supply unit is self adjusting to the connected voltage!
The safety operation of the spring return function works if the supply voltage is cut or line 3
opened. For electrical connection inside hazardous areas an Ex-e terminal box, certificated
in acc. with ATEX is required (e.g. ExBox).
An over-current protection fuse < 10 A has to be provided by installer.
Note: the initial current is appr. 2 A for 1 second.
Integrated auxiliary switches signal the rotation angle’s position. U
min
and I
min
change once
the switches were operated with higher voltage or current.
Ex-i intrinsic safe data – for temperature trigger ExPro-TT T 1.0
On-off SB 2.4 On-off (1 wire) SB 2.5
Wiring of integrated auxiliary switches SB 3.2
On-off – spring return + Ex-i tripping circuit SB 7.4
Ex-i tripping circuit for
ExPro-TT-... safety
temperature trigger
Test
button
Attention!
At 1-wire control
mode the heater
does not work in
case of open contact.
24...240 VAC/DC
24...240 VAC/DC
24...240 VAC/DC
24...240 VAC/DC
Attention
During commissioning apply a self adjustment drive.
Regard duty cycle at motor running times!
Never use spring return actuators without external load.
Auxiliary switches *
see Technical data
Integrated auxiliary switches,
Grid fuse-protection recommended.
min. max.
Integrated auxiliary switches,
Grid fuse-protection recommended.
min. max.
A) Self adjustment of angle of rotation
ATTENTION: To adjust the angle of rotation connect only wire 1 and 2.
Do not connect wire 3.
Apply supply voltage to wire 1 and 2. Turn switch (S) to position 02. Press
button (T) for a minimum of 3 seconds. The actuator drives to the first end posi-
tion, detects the blocking position and performs a spring return to the starting posi-
tion. The LED flashes GREEN during adjustment. After that disconnect from the
mains and connect wire 3.
The adjustment takes about 31 seconds (30 sec. “On”, 1 sec. “Off”).
B) Selecting motor running time
Adjust parameters only if actuator is in idle state or without applied potential.
Turn switch (S) to the position required for the intended operation acc. to table
above. The selected parameters will be carried out at the actuator’s next opera-
tion.
C) Function of the ExPro-TT-... in the Ex-i tripping circuit
When the ...Pro-TT’s tripping circuit is opened the actuator runs into its end posi-
tion with spring return.
D) Additional information for control in On-off operation
a closed = actuator opens
a open = spring return
The rotation direction (clockwise/counter clockwise) depends on left/right
mounting of the actuator to the damper.
3 / 4

EXPLOSIONPROOF
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-S-F1_en
V07 – 19-Oct-2021
ExMax-...-F1 ExMax-...-SF1 ExMax-...-BF1
Special options ... -CTS ... -VAS
Important information for installation and operation
Extra information (see additional data sheet)
Additional technical information, dimensions, installation intruction, illustration
and failure indication
A. Installation, commissioning, maintenance
All national and international standards, rules and regulations for hazardous Ex-areas
must be complied with. Certified apparatus must be installed in accordance with manufacturer
instructions. If the equipment is used in a manner not specified by the manufacturer, the
safety protection provided by the equipment may be impaired. For electrical installations
design, selection and erection, EN/IEC 60079-14 can be used.
For electrical connection an Ex-e terminal box is required (e.g. ExBox-...).
Attention: If the actuator is put out of operation all Ex rules and regulations must be
applied. You have to cut the supply voltage before opening the terminal box!
The cables of the actuator must be installed in a fixed position and protected against
mechanical and thermical damage. Connect potential earth. Avoid temperature transfer
from armature to actuator! Close all openings with min. IP66.
For outdoor installation a protective weather shield against sun, rain and snow should be
applied to the actuator as well as a constant supply at terminal 1 and 2 for the integrated
heater. During commissioning apply a self adjustment drive.
Actuators are maintenance free. An annual inspection is recommended. For electrical
installations inspection and maintenance, EN/IEC 60079-17 can be used. Ex-actuators
must not be opened by the customer.
B. Manual override
Manual override only if supply voltage is cut. Use delivered socket wrench with slow
motions, usage can be tight.
Attention: Releasing or letting go the Allen key too fast at manual operating actuators
with spring return causes risk of injury!
C. Shaft connection, selection of running time
Actuators are equipped with a direct coupling double square shaft connection of 12 × 12 mm.
For round shafts adaptors/clamping connection (accessories, e.g. KB-S) are available.
The housing of the actuator is axially symmetrically built to select Open-close direction
of the spring return function by left-right mounting. Using the 10-position switch different
motor running times and spring return running times can be selected on site in acc. to
the actuator type.
D. Temperature trigger ...Pro-TT-...
The actuator ...Max-...-BF1 will work only with the temperature trigger ExPro-TT-...
E. Operation with 3 sec. motor running time
Note following:
1. The 3 sec. motor running time mode is only available in switch position 0 and 5 and
at a constant supply voltage applied for a minimum of 1 minute on terminal 1 and 2.
2. The actuator opens at voltage on terminal 3 (resp. closes) and closes at voltage on
terminal 4 (resp. opens) – depending on mounting position of the actuator.
3. The max. duty ratio is 10 % resp. 1 cycle / minute. Between two fully 3 sec. cycles in
the same direction there must be a minimum intermission of 1 minute. Trying to run
the actuator in the same direction in less than the required minimum of 1 minute the
function will be blocked for the rest of the idle period. Later the release for the next
cycle is made automatically by an internal timing relay.
4. Same function is applied on spring return actuators, fail safe operation is regarded
same as a motor running cycle.
5. Trying to use the 1 wire On-off methode in switch position 0 and 5, software changes
the motor running time temporarily and automatically to 15 s/90° to protect the actuator
for overheating due to uncontrolled duty ratio.
F. Spring return
Spring return function works only if the supply voltage for terminal 1 or 2 is cut. In the
event of an electrical interruption, the spring returns to its end position even if supply
voltage is available again during return function. Thereafter operation will continue.
G. Operation at ambient temperatures below −20 °C
All actuators are equipped with a regulated integrated heating device designed for
employments down to −40 °C ambient temperature. The heater will be supplied automatically
by connecting the constant voltage supply on the clamps 1 and 2.
1. After mounting the actuator must be immediately electrically connected.
2. The heater switches on automatically when actuator reaches internally −20 °C. It
heats up the actuator to a proper working temperature, then heater switches off
automatically. Actuator will not run during heating process.
3. The adjustment options are only ensured after this heating up period.
H. Excess temperatures
In acc. to the ATEX rules and regulations Ex actuators must be protected against excess
temperature. The internal thermostat works as a maximum limiter and, in the event of
failure at incorrect temperatures, shuts off the actuator irreversible. An upstream connected
temperature sensor stops the actuator before reaching its max. temperature. This safety
feature is reversible, after cooling down the actuator is completely functional again. In
this case the failure must be eliminated immediately on site!
I. Synchron mode
Do not connect several actuators to one shaft or link mechanically together.
J. Mechanical protection
Actuators must be operated with a minimum external load.
After installing the actuator to the damper/armature a self adjustment drive has to be
performed in order to protect the damper/armature against mechanical overload.
During operation the actuator reduces briefly its speed (motor power) before reaching
the end position for a “gentle” blockade/stop.
K. Intrinsically safe circuits
The actuator has a flameproof enclosure acc. to EN 60079. The supply of the push
button (adjustment drive), the 10-position switch (adjustment of torque and running time),
the LED indicator and the sensor connection ExPro-TT is performed intrinsically safe !
L. Routine tests of fire dampers
For periodic inspection of fire dampers cut off the supply line (current of actuator).
The test button at ExPro-TT-... is only used for test purposes of actuator’s function.
Special solutions and accessories
...-CTS Types in aluminium housing with seawater resistant coating
...-VAS Types in stainless steel housing, parts nickel-plated
Adaptions for dampers and valves on request
ExMax-...-S3 Ambient temperature up to +60 °C (T4), 110...240 VAC/DC, 25 % ED
ExPro-TT-... Safety temperature trigger for fire dampers
ExBox-... Ex-e terminal boxes for zone 1, 2, 21, 22
MKK-S Mounting bracket for boxes type ...Box-... directly on actuator
ExSwitch 2 external aux. switches, adjustable for zone 1, 2, 21, 22
KB-S Clamp for damper shafts Ø 10...20 mm and □10...16 mm
AR-12-xx Reduction part for 12 mm square connection to 11, 10, 9 or 8 mm shafts
BSH-S Mounting holder for actuators in fire danger areas
Kit-S8 Cable glands nickel-plated
4 / 4