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ExMax-...
ExMax-...-F
Special option
Electrical connection
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.
Integrated auxiliary switches signal the rotation angle's position. U
the switches were operated with higher voltage or current.
Wiring diagram ExMax- ... (without spring return)
On-off / 3-pos.
SB 1.0
24...240 VAC/ DC
−
+
~
~
PE
a
b
1
2
3
4
Wiring diagram ExMax- ... -F (with spring return)
On-off / 3-pos.
SB 2.2
24...240 VAC/ DC
−
+
~
~
PE
a
b
1
2
3
4
Wiring diagram ExMax- ... -S and ... -SF
Wiring of integrated auxiliary switches
24...240 VAC/ DC
−
+
~
~
PE
a
b
1
2
3
4
Wiring of actuator acc. to type and
application see diagrams above
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. +49 9101 9081-0, Fax +49 9101 9081-77, E-Mail info-de@schischek.com
ExMax-...-S
... -CTM
and I
min
min
Attention
During commissioning apply
a self adjustment drive.
Regard duty cycle at
motor running times !
Never use spring return
actuators without external load.
PA
On-off (1 wire)
24...240 VAC /DC
−
+
~
~
Attention !
At 1-wire control
mode the heater
does not work in
PE
case of open contact.
PA
1
2
3
4
Integrated auxiliary switches,
Grid fuse-protection recommended.
min. max.
U < 90 V AC/DC
2 AT 10 AT
U > 90 V AC/DC
5 AT 10 AT
< 5°
> 85°
1
2
3
4
5
6
Wiring of the integrated, potential free
auxiliary switches
www.schischek.com
ExMax-...-SF
... -VAM
Parameters, adjustments and failure indication
Switch – Push button – Lamp
for adjustment
(behind the blanking plug)
10-position switch (S)
Push button (T)
change once
3-colour LED
Parameter selection
Example:
ExMax-50.75
Requested parameter:
Torque
Motor running time 90 s /90°
Result:
Switch position 07
Functions, adjustments and parameters
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").
SB 2.3
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) Additional information for control in 3-pos. operation
a closed, b open
b closed, a open
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.
PA
Installation
SB 3.0
Ex area –
zone 1, 2, 21, 22
▪ Do not open the cover when circuits are live
▪ Connect potential earth
PA
▪ Close all openings to ensure enclosure protection
▪ Clean only with damp cloth, avoid dust accumulation
E X P L O S I O N P R O O F
Type
ExMax- 50.75
►
50 Nm
ExMax- 100
►
100 Nm
ExMax- 150
►
150 Nm
75 Nm
ExMax- 30 -F
►
30 Nm
ExMax- 50 -F
►
50 Nm
ExMax- 60 -F
►
60 Nm
▼
Running times
Position of switch (S)
40 s / 90°
►
00
60 s / 90°
►
01
90 s / 90°
►
02
120 s / 90°
►
03
150 s / 90°
►
04
= direction I
a and b closed
= direction II
a and b open
Auxiliary switches *
ExBox
Supply *
24...240 VAC/DC ± 10 %
S
T
Torques
75 Nm
▼
05
06
07
08
09
= motor doesn't work
= motor doesn't work
Safe area
see Technical data
* electrical wiring see diagrams
ExMax-M-3P_en
V04 –
14-Jan-2019
3 / 4
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