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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]

info-Max-M_en

V01 –  26-Mar-2015

Extra information for ...Max – size M

●  No power supply attached
●  The actuator is operated at ambient temperature 

beyond specifications and the internal temperature 

fuse shuts down irreversibly 

● 

Actuator does not receive sufficient supply voltage 

● 

Cable to long, voltage drop in the supply line to large

● 

The actuator has been mounted at temperatures 

< −20 °C

 and did not reach is operating temperatur 

of at least

 −20 °C 

● 

3-pos. control signal is wired on both entrances

● 

Required torque is greater than actuators torque

● 

Control signals are not attached or 

attached on a wrong conductor

● 

Actuator is incorrectly mounted and is blocked 

by an external stop unit

● 

Interchanged supply lines

● 

The actuator is operated at a too high ambient 

temperature and the internal temperature sensor 

responded 

●  ...-

BF actuators require a temperature trigger 

type ...Pro-TT or FireSafe

● 

The conversion of constant mode to 3-pos. mode 

was not set

● 

Actuators have an angle of rotation of 95° incl. 

5° pretension. While assembling the pre-load 

was not considered

● 

At start up no self-adjustment of angle of rotation 

was accomplished 

●  Attach power supply and turn on
●  Caused by inadmissable operation and for safety relevant reasons 

the actuator drove into an irreversable condition and must be ex-

changed. accompanying new installation the ambient temperature 

has to be reduced accordingly

● 

Increase line cross section or power supply

● 

Increase line cross section or power supply

● 

Ensure that a constant voltage supply is applied on conductor 1–2 

● 

Wait until the required operating temperature is achieved by the 

actuators internal heating system.The actuator will start operating 

independently 

● 

Readjust / correct circuit

● 

Adjust a higher torque at the actuator if possible otherwise 

exchange for a type with higher torque

● 

Examine rule and adjusting signals and connect in accordance 

with diagram

● 

Dismount actuator and testdrive without load for operability. Then 

install actuator accordingly so that the power transmission of the 

actuator runs the armature/damper without external blockade or 

torsion

●  Switch wires: 1 must be connected to (−, N) and wire 2 to (+, L) 

● 

Shut off actuator and let temperature decrease, reduce ambient 

temperature by suitable measures e.g. ventilation or other mount-

ing position of the actuator

●  Connect trigger, LED changes to GREEN, actuator is 

ready-to-operate

● 

Recalibrate the actuator in accordance with assembly instructions

● 

Dismount actuator off the damper, use enclosed socket wrench to 

draw up approx. 5° over the hand operated control device before 

remounting on the damper shaft. Consider assembly instructions!

● 

Accomplish self adjustment of angle of rotation in accordance with 

assembly instruction

01

 

 Actuator does not work

LED does not light

02

 

 Actuator does not work

LED lights RED

03

 

 Actuator does not work

LED lights GREEN

04

 

 Actuator does not work

LED is blinking RED

05

 

 Y-drive in 3-pos. mode cannot gear 

into intermediate positions

06

 

 Actuator sits diagonally on 

square damper shaft 

07

 

 A modulating Y-actuator working with 

reduced angle of rotation, reaches its 

end positions already at > 0 V/4 mA 

resp. < 10 V/20 mA

08

 

 LED flashes irregularly and 

actuator does not work

 Problem handling / Error indication

  Problem 

Possible cause 

Course of action

6 / 6

Содержание ExMax-50.75

Страница 1: ...alibration These control elements are to be found cable laterally behind the two middle sectioned dummy plugs For operation these must be removed The calibration can be achieved despite lining up power supply at the actuator The explosion prevention is not impaired thereby However it has to be of great concern that the dummy plugs must be rescrewed in order to comply with the IP protection class T...

Страница 2: ... 180 Furthermore it is to be considered that the actuators have a total angle movement of approx 95 in order to realize a pretension on the control element damper or the like Therefore the actuator sits tilted on the damper shaft Attention Mount with appropriate safety precautions only The drive shaft may only be mechanically adjusted either with the provided socket wrench or the optional accessor...

Страница 3: ...igger is mounted directly to the duct or damper wall with pre assembled tapping screws The position of the safety elements must guarantee free air flow Pro TT is mounted to the actuator by means of quick fastener M12 Connection of safety temperature trigger Pro TT Mounting 1 Affix tap holes M8 in accordance with drill template on the damper or to a mounting bracket 2 Adjust drive shaft of the actu...

Страница 4: ... M A Screw mounting bracket MKK M with 4 screws to actuator B Screw terminal box to mounting bracket Mounting of terminal boxes Box to actuator via mounting bracket MKK M accessory Terminal box mounted above the actuator Terminal box mounted beside the actuator Mounting bracket can be mounted every 90 A Place square connection part on actuator s shaft B Mount Switch and fix it with screws Mounting...

Страница 5: ...occur due to line resistances As a consequence with 24 VAC DC the actuator receives a too low tension and does not start In order to prevent this the cross section of the inlet line is to be dimensioned accordingly The accompanying formulas allow the calculation of the necessary line cross section respectively maximal permitted conduit length respectively utilizing the existing line cross section ...

Страница 6: ...s section or power supply Ensure that a constant voltage supply is applied on conductor 1 2 Wait until the required operating temperature is achieved by the actuators internal heating system The actuator will start operating independently Readjust correct circuit Adjust a higher torque at the actuator if possible otherwise exchange for a type with higher torque Examine rule and adjusting signals a...

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