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ExMax-...-BF
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.
On-off (1-wire) – spring return + Ex-i tripping circuit
24...240 VAC/ DC
Integrated auxiliary switches,
Grid fuse-protection recommended.
−
+
~
~
U < 90 V AC/DC
Attention!
U > 90 V AC/DC
At 1-wire control
mode the heater
does not work
in case of
open contact.
PE
1
2
3
4
5
On-off / 3-pos. – spring return + Ex-i tripping circuit
Integrated auxiliary switches,
24...240 VAC/ DC
Grid fuse-protection recommended.
−
+
~
~
U < 90 V AC/DC
U > 90 V AC/DC
PE
a
b
1
2
3
4
5
Ex-i intrinsic safe data – for temperature trigger ExPro-TT T 1.0
U
= 5,88 V
o
I
= 24,75 mA
o
P
= 37
mW
L
o
o
C
= 0
C
i
o
L
= 0
i
Attention
During commissioning apply a self adjustment drive.
Regard duty cycle at motor running times !
Never use spring return actuators without external load.
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
... -CTM
and I
change once
min
min
Ex-i tripping circuit for
ExPro-TT-... safety
min. max.
temperature trigger
2 AT 10 AT
5 AT 10 AT
< 5°
> 85°
6
7
8
9
10
1
2
Ex-i tripping circuit for
ExPro-TT-... safety
min. max.
temperature trigger
2 AT 10 AT
5 AT 10 AT
< 5°
> 85°
6
7
8
9
10
1
2
IIC
IIB
IIA
50 mH
50 mH
50 mH
43 μF
1000 μF
1000 μF
www.schischek.com
... -VAM
Parameters, adjustments and failure indication
Switch – Push button – Lamp
for adjustment
(behind the blanking plug)
10-position switch (S)
Push button (T)
3-colour LED
SB 7.2
Parameter selection
Example:
ExMax-30-BF
ExPro-TT
Requested parameter:
Torque
30 Nm
°C
Motor running time 90 s /90°
Test
Result:
button
Switch position 02
PA
Functions, adjustments and parameters
A) Self adjustment of angle of rotation
Turn switch (S) to position 02. 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 60 seconds (30 sec. "On", 30 sec. "Off").
B) Selecting motor running time and torque
SB 7.3
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) Function of the ExPro-TT-... in the Ex-i tripping circuit
When the ...Pro-TT's tripping circuit is opened the actuator runs into its end position
ExPro-TT
with spring return.
D) Additional information for control in 3-pos. operation
°C
a closed, b open
b closed, a open
Test
The rotation direction (I and II) depends on left / right mounting of the actuator to the
button
damper. To reverse the rotation direction (by motor) exchange the electrical wiring
of terminal 3 and 4.
PA
Installation
Ex area –
zone 1, 2, 21, 22
ExPro-TT
E X P L O S I O N P R O O F
Type
Torques
ExMax- 30 -BF
►
30 Nm
ExMax- 50 -BF
►
50 Nm
ExMax- 60 -BF
►
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
Safe area
Auxiliary switches *
ExBox
Supply *
24...240 VAC/DC ± 10 %
* electrical wiring see diagrams
S
T
05
06
07
08
09
= motor doesn't work
= motor doesn't work
see Technical data
ExMax-M-BF_en
V04 –
14-Jan-2019
3 / 4
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