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Dimensions
S21
A1
S11
S22
S12
X2
X1
A2
Y1
13
23
Y4
Y3
Y2
START
PWR
NC88
OUT
STEM
S2
S1
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L
2
L
1
L
3
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2
Made in Italy
Y
1
A
2
A
1
S
2
1
K
3
2
3
K
1
1
4
1
3
X
2
Y
4
Y
3
X
1
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1
2
4
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2
S
1
2
S
1
1
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2
S
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ly:
2
4
V
A
C
/D
C
+
1
5
%
,
-1
0
%
(
A
C
5
0
÷
6
0
H
z)
S
a
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ty
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tp
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(1
3
-1
4
,
2
3
-2
4
):
3
A
,
2
5
0
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8
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4
8
Operating instructions for safety control unit mod. NC8 8
STEM S.r.l. via della Meccanica, 2 I-27010 Cura Carpignano Pavia Italia Tel. +39 0382 583011 Fax +39 0382 583058 www.stemsrl.it [email protected]
3
M
14
24
S
T
A
R
T
(r
e
s
e
t)
S1, S2
START
Power
S1, S2
START
LED DISPLAYS
Inputs S1, S2, START: CLOSE
Inputs S1, S2, START: OPEN
Outputs 13/14, 23/24 and Y1/Y2: CLOSE
Outputs 13/14, 23/24 and Y1/Y2: OPEN
Function
Supply Voltage
on
off
on
green
green
-
OUT
off
State
on
Color
(ON)
-
green
OUT
LED
PA 6.6
OUT=off: 50 OUT=on: 100
EN 81-50:2014
EN12015, EN12016, EN 61000-6-2, EN 61000-6-3, EN 55011:1999
3 (MAX)
3,3
60 (MAX)
55 (MAX)
750
10
2,5 x 10 (250 Vac, 3 A cos
φ
=1)
5
7
250
1
24 +15%, - 10% (AC 50 ÷ 60 Hz)
115 x 105 x 22,5 / 180
IP20
3
A
W
mA
Vdc
VA
V AC
V ac/dc
Hz
mA
ms
ms
mm / g
AC-15: 0,9A, 250V
TÜV n° EDES 007
kPa
°C
kPa
°C
EN 81-20:2014, EN 81-50:2014
cycles
cycles
TECHNICAL DATA
Parameter
Value
Units
Pressure: 86 ... 106
Relative humidity: 5% ... 95%
Temperature: -25 ... +70
Pressure: 86 ... 106
Relative humidity: 4% ... 100%
Housing conditions
Operating conditions
Temperature: 0 ... +55
Housing Material
Dimensions / Weight
DIN standard 35 mm guide
Connection type
Supply voltage
Plug-in screw terminals
Degree of contamination
Degree of protection (IEC 60529)
Assembly
750 mA resettable PTC
Typical 120, max 160
Current consuption
Internal fuse on the supply
Max. switching frequency
Input synch. time ts (automatic start -2-)
Output response time (t1)
13-14 e 23-24 (normally open)
Y1-Y2, Y3-Y4 (collector-emitter optoinsulated)
Auxiliary outputs terminals
Safety Output switching voltage
Safety output switching current
Safety output switching power
Safety outputs terminals
Auxiliary Output voltage
Auxiliary output current
Auxiliary output power
Usage category
Vibration resistance
Mechanical operation life
EMC compliance
Electrical operation life
Approvals
In accordance with
OFF state response time (t2)
15
ms
13-14 / 23-24
S1
S2
Timing diagram for manual start
START
S1
S2
13-14 / 23-24
Timing diagram automatic start - 2 -
(X1-X2 bridged)
t1
t2
IZ
IS o ID
13-14 / 23-24
t1
t2
ts
ts
ts
ts
Timing diagram automatic start - 1 -
600
ST
EM
S
.r.
l.
Via
d
ell
a M
ecca
nica
, 2
I-2
70
10
C
ura
C
arp
ig
na
no
P
V
IT
AL
IA
ww
w.s
te
msr
l.it
Overvoltage Category
13-14
23-24
S1
S2
Voltage dip
Voltage
supply
Voltage
dip
∆
t= 200ms
