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www.schischek.com

Schischek GmbH Germany, Mühlsteig 45, Gewerbegebiet Süd 5, 90579 Langenzenn, Tel. +49 (0)9101 9081-0, Fax +49 (0)9101 9081-77, E-Mail [email protected]

E X P L O S I O N P R O O F

S

T

10-position switch (S)
Push button (T)
3-colour LED

Switch – Push button – Lamp for adjustment, behind the blancking plug

SB 1.0

SB 1.1

SB 3.5 

B

A

Example: ExMax-50.75

Requested parameter:   

Torque 75 Nm

Running time motor 90 sec/90°

Result:   switch position (S) 07

Parameter selection

1

2

3

4

~

-

~

+

PE

heater

Type 

Torques

ExMax-   50.75  

     50 Nm    75 Nm 

ExMax- 100  

   100 Nm 

ExMax- 150  

   150 Nm    

ExMax-   30-F  

     30 Nm   

ExMax-   50-F  

     50 Nm

ExMax-   60-F  

     60 Nm

  

 

      

Running times   Position of switch S
 

40 sec./90° 

   00    05

 

60 sec./90° 

   01    06

 

90 sec./90° 

   02    07

  120 sec./90° 

   03    08

  150 sec./90° 

   04    09

Wiring of integral aux. switches

1

2

3

4

~

-

~

+

PE

heater

1 2

Integral aux. switches

potential free contacts

switching at 5° and 85°

Angle of rotation

max. 24 V/1 A, 240 V/0,25 A

< 5 °

3

4 5

> 85 °

6

Wiring of the actuator in acc. with

actuator type, see wiring diagrams 1.0/1 .1

Additional wiring of the integral aux. switches

1

2

3

4

~

-

~

+

24 to 240 VAC/DC

PE

heater

24 to 240 VAC/DC

24 to 240 VAC/DC

a

b

a

b

If 40 sec. or 60 sec. mode is selected, 

the self adjustment of angle of rotation 

must be started. 

Attention

!

!

If 40 sec. or 60 sec. mode is selected 

for motor and/or spring return, the self 

adjustment of angle of rotation must be 

started. 

Never use actuators in this mode 

without external torque/force. 

Attention!

!

!

PA

PA

PA

A) Self adjustment of Angle of rotation:

Switch (S) into position 02 (low torque) or 07 (high torque), then push button (T) for 

minimum 3 seconds. The actuator will drive into both end positions to be adjusted. 

LED indicates green. 

Adjusmtent time needs approx.  180 sec. (90 sec. On, 90 sec. Off). After that, switch 

S into position 00-09 in acc. with your required torque and running time.
B) Selection of running time and torque:

Put switch (S) into the correct/selected position in acc. to above table. 

The selected parameter will work at next operation of the actuator.

Adjustment can be done even without supply voltage. If supply voltage is available 

turn switch only if actuator is not running.
C) Additional information for 3-pos operation:

a closed, b open = direction I

b closed, a open = direction II

a and b closed    = Motor doesn't work

a and b opened  = Motor doesn't work

Direction (I and II) depends on left/right mounting of the actuator to the damper/valve.

You can change direction of the motor by changing electrical wiring terminal 3 and 4.

See extra information „EL-M“

Error indication

Function, adjustment and parameter

Wiring diagram ExMax-.... (without spring)

Wiring diagram  ExMax-..-F (with spring return)

Parameter, Adjustment – Failure indication

Wiring diagram type ExMax-...-M with integral aux. switches 

ExMax actuators are equipped with a universal supply unit working at a voltage range from 

24 to 240 VAC/DC

The supply unit is self adjustable to the connected voltage! 

The safety operation of the spring return function works if the supply voltage is cut. For 

electrical connection inside hazardous locations an explosion proof junction box is required. 

For permanently connected equipment is an external 5 A (time lag) circuit-breaker in the 

control cabinet required.

Electrical connection

ExMax-50…150 ExMax-30…60-F
Special makes  

ExMax-…-S/SF  

ExMax-…-CTM

Summary of Contents for ExMax CTM Series

Page 1: ... 90 120 150 sec at 90 without On off 3 pos SB 1 0 ExMax 100 100 Nm 24 240 VAC DC 40 60 90 120 150 sec at 90 without On off 3 pos SB 1 0 ExMax 150 150 Nm 24 240 VAC DC 40 60 90 120 150 sec at 90 without On off 3 pos SB 1 0 ExMax 30 F 30 Nm 24 240 VAC DC 40 60 90 120 150 sec at 90 20 sec at 90 On off 3 pos SB 1 1 ExMax 50 F 50 Nm 24 240 VAC DC 40 60 90 120 120 sec at 90 20 sec at 90 On off 3 pos SB ...

Page 2: ...et wrench slow motion enough torque force is required Attention with manual operation of actuators with spring return danger of injury exists with release let go the socket wrench Integral heater integral heater controlled for ambient temperature down to 40 C Housing material Aluminium die cast housing painted optional in amercoat painted CTM Dimensions L W H 286 150 116 mm for diagramm see extra ...

Page 3: ...en push button T for minimum 3 seconds The actuator will drive into both end positions to be adjusted LED indicates green Adjusmtent time needs approx 180 sec 90 sec On 90 sec Off After that switch S into position 00 09 in acc with your required torque and running time B Selection of running time and torque Put switch S into the correct selected position in acc to above table The selected paramete...

Page 4: ...ature below 20 C See extra information EL M F Excess temperature In acc to the ATEX rules and regulations Ex actuators must be protected against excess temperature An internal thermostat guarantees the temperature class in the event of failure If this thermostat is working the actuator must be sent to the factory ExMax actuators are equipped with an additional temperature sensor to stop the actuat...

Page 5: ...of needed cable cross section A at a cable length of L A 0 0714 l L Uv 18V The EL data sheet contains additional information for ExMax and RedMax actuators of the size M for the optimization and simplification in regard to planning installation and initial startup It provides influences of external factors in reference to the safe initiation of the actuators as well as technical references and pro...

Page 6: ...ors without external torque force min 10 Nm Attention If you use this type of wiring the heater does not work in case of open contact Attention If you use this type of wiring the heater does not work in case of open contact Attention If you use this type of wiring the heater does not work in case of open contact Integrated aux switches max 24 V 3 A 240 V 0 5 A switching at 5 and 85 Supply at aux s...

Page 7: ...y on the clamps 1 and 2 Following parameters are to be considered by ambient temperaure 10 C 1 After mounting the actuator must bei immediately electrically connected 2 The actuator will only be activated after the operating temperature has reached at least 20 C 3 The adjustment options are only ensured after this heating up period IV Mechanical protection 1 The actuator must be operated with an o...

Page 8: ...re remounting on the damper shaft Consider additional information ME M of the assembly instructions A modulating actuator Y works with reduced angle of rotation and already reaches its end positions before 0 V 4 mA respectively before 10V 20mA l At start up no self adjustment of angle of rotation was accomplished l Accomplish self adjustment of angle of rotation in accordance with assembly instruc...

Page 9: ...unting For outdoor installation it has to be certain that the actuator is protected against direct sun exposure warmth and UV rain and snow by employing an enclosure roof Supply voltage is to be applied immediately after mounting in order to assure integrated heating at start Since explosion proof actuators must have internal safety temperature limiters these may not be exposed neither at storage ...

Page 10: ... In case of spring return function the safety postion must be selected by turning the actuator 180 Mounting 1 Affix tap hole M8 in accordance with drill template on the damper or to a mounting bracket 2 Adjust drive shaft of the actuator with the socket wrench that the drive stands perpendicular to the damper before pluging actuator on to the damper shaft 3 Plug actuator onto damper shaft and fix ...

Page 11: ...ten the remaining screws 6 Mount temperatur limiter type ExPro TT InPro TT 7 Mount terminal box 8 Connect sensor on actuator Note the drive shaft is selflockingly produced and may only be mechanically adjusted either with the provided socket wrench or the optional accessory HV M manual override External applied force to the shaft can lead to mechanical damage of the actuator Mounting instructions ...

Page 12: ... Switch 1 Screw mounting bracket MKK M to the actuator A then screw terminal box to the mounting bracket B Mounting bracket MKK M can be mounted every 90 Terminal box mounted above the actuator Terminal box mounted beside the actuator 2 2 B A 4 Mounting of ExSwitch RedSwitch InSwitch accessory to the actuator Mounting of terminal boxes type ExBox RedBox InBox via mounting bracket type MKK M to the...

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