Schischek ExMax User manual

EXPLOSIONPROOF
ExMax - ... - Y
ExMax - ... - YF
ExMax - ... - CTM
ExMax - ... - VAM
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-M-Y_en
V01 – 19-Sep-2018
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
3-pos. / 0...10 VDC / 4...20 mA control mode, with feedback, 24...240 VAC/DC, 95° angle of rotation
50/75 Nm, 100 Nm without and 30 Nm, 50 Nm with safety operation (spring return)
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- 50.75 - Y 50 / 75 Nm 24...240 VAC/DC 40 / 60 / 90 / 120 / 150 s/90° – 3-pos., 0...10 VDC, 4...20 mA 0...10 VDC, 4...20 mA SB 4.0+4.1
ExMax-100 - Y 100 Nm 24...240 VAC/DC 40 / 60 / 90 / 120 / 150 s/90° – 3-pos., 0...10 VDC, 4...20 mA 0...10 VDC, 4...20 mA SB 4.0+4.1
ExMax- 30 - YF 30 Nm 24...240 VAC/DC 40 / 60 / 90 / 120 / 150 s/90° ~ 20 s/90° 3-pos., 0...10 VDC, 4...20 mA 0...10 VDC, 4...20 mA SB 4.0+4.1
ExMax- 50 - YF 50 Nm 24...240 VAC/DC 40 / 60 / 90 / 120 / 150 s/90° ~ 20 s/90° 3-pos., 0...10 VDC, 4...20 mA 0...10 VDC, 4...20 mA SB 4.0+4.1
ExMax- ... - CTM Types as above with aluminium housing and seawater resistant coating (cable glands brass nickel-plated)
ExMax- ... - VAM Types as above with stainless steel housing for aggressive ambient (cable glands brass nickel-plated)
ExMax ¼ turn actuators – size M
►For all types of gas, mists, vapours and dust for use in zone 1, 2, 21 and 22
►Universal supply unit from 24…240 VAC/DC
►5 different motor running times 40–60–90 –120–150 s /90°, adjustable on site
►2 different spring return running times ~ 20 s/90°, selectable on site
►3-pos. and 0...10 VDC, 4...20 mA control mode with or without spring return function
► Feedback signals 0...10 VDC and 4...20 mA
► Reverse function
►30– 50–75 –100 Nm actuators in the same housing size
►100 % overload protected
►Compact design and small dimension (L × W × H ~ 288 × 149 × 116 mm)
►Direct coupling to the damper shaft with double square connection 16 × 16 mm
►95° angle of rotation inclusive 5° pretension
►Robust aluminium housing (optional with seawater resistant coating)
or in stainless steel
►IP67 protection
►Simple manual override included + preparation for comfortable manual override
►Gear made of stainless steel and sinter metal
►Weight only ~ 9,5 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
►Wide range of accessories
The ExMax actuators are a revolution for safety, control and shut-off
dampers, VAV systems, ball valves, throttle valves 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 IP67 protection, small dimensions,
only 9,5 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 and torques as well as
spring return times, according to the actuator type, are selectable or
adjustable on site. The integrated universal power supply is self adaptable
to input voltages in the range of 24...240 VAC/DC. Furthermore it is
possible to perform control signal inverting and compulsion control by
certain connections. The actuators are 100 % overload protected.
...Max-...-YF actuators are equipped with spring return fail safe function.
Standard shaft connection is a double square direct coupling with
16 × 16 mm.
Different accessories are available to adapt auxiliary switches, terminal
boxes or adaptions for ball valves and throttle valves and other armatures.
1 / 4

EXPLOSIONPROOF
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-M-Y_en
V01 – 19-Sep-2018
ExMax-...-Y ExMax-...-YF
Special option ... -CTM ... -VAM
Technical data ExMax- 50.75 -Y ExMax- 100 -Y ExMax- 30 -YF ExMax- 50 -YF
Approbations Special solutions and accessories
...-CTM Types in aluminium housing with seawater resistant coating,
...-VAM Types in stainless steel housing, parts nickel-plated
ExBox-Y/S... Ex-e terminal boxes for zone 1, 2, 21, 22
MKK-M Mounting bracket for boxes type ...Box-... directly on actuator
ExSwitch 2 external aux. switches, adjustable for zone 1, 2, 21, 22
HV-MK Comfortable manual override for ...Max actuators size M
AR-16-xx Reduction part for 16 mm square connection to 14 or 12 mm shafts
Kit-S8 Cable glands nickel-plated
Adaptions for dampers and valves on request
Torque motor (min.) 50 / 75 Nm selectable on site 100 Nm 30 Nm 50 Nm
Torque spring (F) – – min. 30 Nm min. 50 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. 10 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 40 / 60 / 90 / 120 / 150 s/90° selectable on site
Motor Brushless DC motor
Control mode Y 3-pos., 0…10 VDC, 4…20 mA in acc. with wiring, selectable on site. Galvanic separation between supply and Y-signal
Feedback signal U 0…10 VDC, 4…20 mA in acc. with wiring, selectable on site, both signals are available at the same time
Resistance of Y and U signals Input signal: YU0...10 VDC at 10 kΩ, YI4...20 mA at 100 Ω. Feedback signal: UU 0...10 VDC at 2.000...∞ Ω, UI4...20 mA at 0...800 Ω
Reverse function Bridge between wiring 3 and 4 (signal wise) gets a reverse function of Y and U
Compulsion control In modulation mode an On-off compulsion control can be performed by external connection/wiring independently from the modulating signal
Adjustment of Y and U In case of external mechanical limitation of the angle of rotation, it is possible to perform an adjustment drive started by touching the button
Spring return (F) – – spring return upon voltage interruption
Spring return response time – – up to 1 sec. after voltage interruption
Spring return running time (F) – – ~ 20 s/90°
Safety operations at 20 sec. (F) – – min. 10,000 acc. to construction of damper and ambient
Axle of the actuator Double square 16 × 16 mm, direct coupling, 100 % overload protected
Electrical connection 2 cable glands each ~ 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 7.1 + 7.4 mm ~ Ø 7.1 + 7.4 mm ~ Ø 7.1 + 7.4 mm ~ Ø 7.1 + 7.4 mm
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 (...-CTM) or stainless steel housing,
№1.4581 / UNS-J92900 / similar AISI 316Nb (...-VAM)
Dimensions (L × W × H) ~ 288 × 149 × 116 mm, for diagrams see Extra information
Weight ~ 9.5 kg aluminium housing, stainless steel ~ 15 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
Operation mode 80 % of ED are permitted (ED = duty cycle)
Accuracy electrically ~ 100 steps
Self adjustment If you select 40 sec. or 60 sec. mode for motor running time or rotation angle < 90° you need to start the self adjustment mode
Maintenance Maintenance free relative to function, maintenance must comply with regional standards, rules and regulations
Wiring diagrams SB 4.0 / 4.1 SB 4.0 / 4.1 SB 4.0 / 4.1 SB 4.0 / 4.1
Scope of delivery Actuator with 2 × 1 m cable, 4 screws M8 × 140 mm, 4 nuts M8, Allen key for simple manual override
Parameter at delivery 50 Nm, 90 s/90° 100 Nm, 90 s/90° 30 Nm, 90 s/90° 50 Nm, 90 s/90°
ATEX directive 2014/34/EU
EC type-approved PTB 04 ATEX 1028 X
IECEx certified IECEx PTB 07.0057X
Approval for gas II 2 (1) G Ex d [ia] IIC T6, T5
Types ...-CTM II 2 (1) G Ex d [ia] IIB T6, T5
Approval for dust II 2 (1) D Ex tD [iaD] A21 IP66 T80, T95°C
CE identification CE №0158
EMC directive 2014/30/EU
Low voltage directive 2014/35/EU
Enclosure protection IP67 in acc. with EN 60529
EAC № ТС RU С-DE.ГБ08.В.01510
2 / 4

EXPLOSIONPROOF
! !
ExMax- 50.75-Y ►
ExMax- 100-Y ►
ExMax- 30-YF ►
ExMax- 50-YF ►
50 Nm
100 Nm
30 Nm
50 Nm
▼
40 s / 90° ►
60 s / 90° ►
90 s / 90° ►
120 s/90° ►
150 s/90° ►
00
01
02
03
04
05
06
07
08
09
ExBox
a b
+
~
+
~
−
~
−
~
PE
PE
1
1
2
2
3
3
4
4
6
6
1
1
2
2
3
3
5
5
4
4
PA
PA
YmA
YmA
YVDC
YVDC
T
VDC/mA
T
VDC/mA
UmA
UmA
UVDC
UVDC
75 Nm
▼
S
T
www.schischek.com
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. [phone], Fax [phone], E-Mail [email protected]
ExMax-M-Y_en
V01 – 19-Sep-2018
ExMax-...-Y ExMax-...-YF
Special option ... -CTM ... -VAM
Electrical connection Parameters, adjustments and failure indication
Parameter selection
Functions, adjustments and parameters
Type
Running times Position of switch (S)
Torques
Example:
ExMax-50.75-Y
Requested parameter:
Torque 75 Nm
Motor running time 90 s/90°
Result:
Switch position 07
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.
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.
Installation
supply *
24...240 VAC/DC ± 10 %
* electrical wiring see diagrams
Modulating / 3-pos. – with / without spring return SB 4.0
Modulating – with / without spring return (no enforcement) SB 4.1
Function and enforcement control of switch a and b in modulating mode:
▪a closed – Forced-ON (OFF) in acc. to left /right mounting of actuator
▪b closed – Forced-OFF (ON) in acc. to left /right mounting of actuator
Reverse function:
Bridge 3–4 reverses the
input and output signals
Reverse function:
Bridge 3–4 reverses the
input and output signals
Self adjustment:
To adjust the signal input /output to the angle of
rotation of the damper/valve the button (T) must
be pushed for a minimum of 3 sec.
Self adjustment:
To adjust the signal input /output to the angle of
rotation of the damper/valve the button (T) must
be pushed for a minimum of 3 sec.
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.
Ex area –
zone 1, 2, 21, 22 Safe area
A) Self adjustment of angle of rotation
Turn switch (S) to position 02 (low torque) or 07 (high torque). Press button (T) for
a minimum of 3 seconds. The actuator drives to both end positions and detects the
blocking positions. The LED flashes GREEN during adjustment.
The adjustment takes about 180 seconds (90 sec. “On”, 90 sec. “Off”).
B) Selecting motor running time and torque
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 operation.
C) Changing modulating operation to 3-pos. operation with feedback
Modulating mode: The LED lights GREEN, potential applied.
Press button (T) briefly 3 times:
▪ each for at least 0.2 seconds
▪altogether within max. 5 seconds
The LED changes from steady GREEN to steady YELLOW*.
D) Changing 3-pos. operation with feedback to modulating operation
3-pos. mode: The LED lights YELLOW*, potential applied.
Press button (T) briefly 3 times.
The LED changes from steady YELLOW* to steady GREEN.
E) Additional information for control in 3-pos. operation with feedback
a closed, b open = direction I a and b closed = motor doesn’t work
b closed, a open = direction II a and b open = motor doesn’t work
The rotation direction (I and II) depends on left/right mounting of the actuator to the
damper. To reverse the rotation direction (by motor) exchange the electrical wiring
of terminal 3 and 4.
In 3-pos. operation with feedback the Y-inputs are without function.
F) Inverting
Bridging signal wires 3–4 (cable B) inverts the function of input signals Y and feed-
back signals U.
* Note: “YELLOW” may vary from yellowish to orange.
Switch – Push button – Lamp
for adjustment
(behind the blanking plug)
10-position switch (S)
3-colour LED
Push button (T)
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-M-Y_en
V01 – 19-Sep-2018
ExMax-...-Y ExMax-...-YF
Special option ... -CTM ... -VAM
Important information for installation and operation
Extra information (see additional data sheet)
Additional technical information, dimensions, installation instruction, illustration
and failure indication
A. Installation, commissioning, maintenance
All national and international standards, rules and regulations for hazardous Ex-areas
must be complied. 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 regulationsmust be
applied. You have to cut the supply voltage before opening the terminal box!
The cablesof 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. IP67.
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 16 × 16 mm.
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. 3-position control mode
...Max actuators are in the best way suitable for the 3-pos. operation. To protect such
elements as gears and mounting elements against harmful influences like minimum
pulse time, ...Max actuators are protected via internal electronics. It ignores impulses
< 0,5 s, the cyclic duration must be min. 0,5 s. At changing direction the pause is 1 s.
E. 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.
F. 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 bei 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.
G. 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!
H. Synchron mode
Do not connect several actuators to one shaft or link mechanically together.
I. 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.
J. 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) and the LED indicator is performed intrinsically safe!
Accessory ExBox – adaptable Ex-e terminal boxAccessory ExSwitch – adaptable Ex-d auxiliary switch
For electrical connection of ...Max actuators inside the
hazardous area an Ex-e terminal box is required.
ExBoxes are appropriate terminal boxes and placed at
the disposal. To adapt the ...Box directly to the actuator
housing a mounting bracket type MKK-M is required.
ExBox- Y/S for ...Max-...-Y and ...-YF with integrated
auxiliary switches
For an end or inclined position indication it is possible to
retrofit external, adjustable, explosion proof auxiliary switches
type ExSwitch. The switch housing is mounted directly to
the actuator and the switches are linked to the actuator’s
square connector. The switches deliver a potential free
output and can be adjusted separately. They are connected
by the included cable tail.
4 / 4