E X P L O S I O N P R O O F
www.schischek.com
Schischek GmbH
Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. +49 9101 9081-0, Fax +49 9101 9081-77, E-Mail [email protected]
InMax-M-3P_en
V04 – 31-Oct-2018
InMax-...
InMax-...-F
InMax-...-S InMax-...-SF
Special option
... -CTM
... -VAM
Important information for installation and operation
Accessory InBox – adaptable terminal box
Accessory InSwitch – adaptable auxiliary switch
For electrical connection of ...Max actuators a terminal
box is required.
InBoxes are appropriate terminal boxes and placed at the
disposal. To adapt the ...Box directly to the actuator hous-
ing a mounting bracket type MKK-M is required.
InBox- 3P for ...Max-... and ...Max-...-F
InBox- Y/S for ...Max-...-S and ...-SF with integrated
auxiliary switches
For an end or inclined position indication it is possible to
retrofit external, adjustable auxiliary switches type InSwitch.
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.
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 must be complied with.
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 connection a terminal box is required (e.g. InBox-...).
Attention:
If the actuator is put out of operation all 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. 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. 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
All actuators are 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. Loss of voltage
In switch position 00, 01 and 05, 06 (motor running times 40 sec. and 60 sec.) and after
interrupted voltage the actuator (types 50.75, 100 and 150 and ...-S) moves in OFF
position then the actuators works regarding control signal.
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