4
Operating Instruction
ESR4-NO-21, ESR4-NM-21
Basic device for Emergency-Stop and Safety Gate Applications
•
Basic device to EN 60204-1 and EN 954 -1 for single or dual E-stop monitoring.
•
EN 954 category 4
•
Stop category 0 acc. EN 60204-1
•
Manual or automatic start
•
Cross monitoring
•
Feedback loop to monitoring external contactors
•
2 Enabling paths, 1 signalling path
•
Rated voltage in the E-stop circuit DC 24 V
•
Processing of signals from output switching devices (OSSD) of light curtains acc. DIN EN
61496-1.
•
To connect to load side of safety mats acc. DIN EN 1760-1 (ESR4-NM-21)
•
Debouncing of inputs (ESR4-NM-21)
Front View
Power
LED green
K1
LED green
K2
LED green
Safety Instructions
Only trained professional electricians may
install, startup, modify, and retrofit this
equipment! Disconnect the device / system
from all power sources prior to starting any
work! If installation or system errors occur,
line voltage may be present at the control
circuit in devices without DC isolation!
Observe all electrical safety regulations
issued by the appropriate technical authorities
or the trade association. The safety function
can be lost if the device is not used for the
intended purpose. Opening the housing or
any other manipulation will void the warranty.
Caution!
Perform the following precautionary steps
prior to installation, assembly, or disassembly:
1. Disconnect supply voltage to the
equipment / system prior to starting any
work!
2. Lockout/tag the equipment / system to
prevent accidental activation!
3. Confirm that no voltage is present!
4. Ground the phases and short to ground!
5. Protect against adjacent live
components using guards and barriers!
6. The devices must be installed in a
cabinet with a protection class of at least
IP 54.
Caution!
Limited contact protection! Protection type
according to DIN EN 60529.
Housing/terminals: IP 40/ IP 20.
Finger-proof acc. to DIN VDE 0106 Part 1.
Description of Device and Function
ESR4-NO-21
This device is a two-channel safety switching device for emergency stop
applications with self-monitoring on each ON-OFF cycle. It conforms to EN 60204-1 and is
equipped with positively driven relays.
Basic function:
After supply voltage has been connected to terminals A1/A2 and the safety
inputs closed, operating the reset button closes the enabling current paths (manual start). When
the safety inputs are opened/de-excited the enabling current paths will open.
Operating modes / system functions
•
One- or two-channel activation
With single-channel activation both safety channels CH1
and CH2 are connected in parallel, with two-channel activation they are connected
separately.
•
Without cross monitoring
Both safety channels are connected to positive potential (S12
and S31 to S11).
•
With cross monitoring
Safety channel CH1 is connected to positive potential (S11 to S12)
and safety channel CH2 to negative potential (S21 to S22).
•
Manual start
When the safety inputs are closed, a button is used to open reset input S34
(triggering with falling edge) or to close reset input S35 (triggering with rising edge).
•
Automatic start
Reset input S35 is connected to S33. The device starts with the rising
edge of the signal on safety input S12.
•
Starting lockout
After supply voltage has been connected and the safety inputs closed, the
enabling paths will not close. Starting is only possible after the reset button has been
operated. For starting lockout the reset inputs have to be activated with the button, as in
manual start mode.
•
Restarting lockout
No restart after the safety inputs have been opened and closed.
Restarting is only possible after the reset button has been operated. For restarting lockout
the reset inputs have to be activated with the button, as in manual start mode.
•
OSSD-compatible
OSSD signals from a light barrier or other safety sensors with
semiconductor outputs can be processed. Test pulses < t
TP
do not influence the device
functions. Test pulses > t
TP
can lock the device.
•
Synchro-check
With two-channel activation both safety channels are monitored together
with synchronous time t
S
. Safety channel CH1 must close before CH2 and bridge S33/S35
must be connected. If CH2 closes before CH1, the synchronous time t
S
=
∞
.
ESR4-NM-21
The functions correspond to those of ESR4-NO-21 without simultaneity monitoring.
The device is suitable for connecting to short-circuit-forming 4-wire switching mats, switching
strips and switching edges (without monitoring resistance). The device must be operated with two
channels and cross monitoring. If there is resistance < 50
Ω
/channel and a short circuit between
the channels (S11/S12 and S21/S22) the enabling paths open and the SUPPLY LED flashes.
Input debouncing prevents fast consecutive switching of the enabling outputs when the safety
inputs open for shorter than t
ASP
. When the safety inputs open for longer than t
ASP
the enabling
paths open after t
R
. Restarting is prevented for time t
SP
.
Please observe instructions from safety authorities.
9
Caract
´
ristiques techniques
Circuit d
è
alimentation
ESR4-NO-21
ESR4-NM-21
Tension nominale U
N
AC/DC 24 V
Puissance assign
´
e DC
2,0 W
2,1 W
Puissance assign
´
e AC
2,4 W / 4,4 VA
2,5 W / 4,6 VA
Ondulation r
´
siduelle
2,4 V
SS
Fr
´
quence nominale
50 ... 60 Hz
Plage de la tension de service
0,85 ... 1,1 x U
N
Fusible pour alimentation circuit de commande
r
´
sistant aux courts-circuits (r
´
sistance
PTC)
r
´
sistant aux courts-circuits (fusible
´
lectronique)
Circuit de commande
Tension de sortie nominale S11, S33 contre S21
DC 22 V
Courant de sortie / courant de pointe
100 mA / 2000 mA
100 mA / 200 mA
Plage de la tension d
ê
entr
´
e
High (haut)
DC 17,4 V
a
DC 26,4 V
Low (bas)
DC
ô
3,0 V
a
DC +5,0 V
Courant nominal / courant de pointe S12, S31/S22
40 mA / 100 mA
Courant nominal / courant de pointe S34, S35
5 mA / 50 mA
Temps d
ê
impulsion de test admis t
TP
/ fr
´
quence de test
≤
1000
µ
s /
≤
10 s
-1
Temps de fonctionnement t
A1
S34
20 ms
a
40 ms
Temps de fonctionnement t
A2
S35
200 ms
a
500 ms
20 ms
a
80 ms
Dur
´
e mini de maintien t
M
S34, S35
> 50 ms
Temps de blocage t
SP
---
70 ms
a
130 ms
Temps de fonctionnement du blocage t
ASP
---
> 7 ms
Temps de r
´
armement t
W
≥
40 ms
≥
150 ms
Temps de rel
Ü
chement t
R
K1, K2
< 25 ms
Temps de contr
o
le du d
´
synchronisme
≈
200 ms
--
Circuit de sortie
Contacts de sortie
Equipement des contacts
2 contacts de travail,
a
guidage forc
´
Tension nominale de coupure U
n
AC 240 V / DC 300 V
Courant continu max. I
n
pour chaque contact
6 A
Courant total max. de tous les contacts
12 A
AC-15 : Ue 230 V, Ie 4 A (360 h
-1
) DC-13: Ue 24 V, Ie 4 A (360 h
-1
)
Cat
´
gorie d
ê
utilisation selon IEC 947 - 5 - 1
AC-15 : Ue 230 V, Ie 3 A (3600 h
-1
) DC-13: Ue 24 V, Ie 2,5 A (3600 h
-1
)
Dur
´
e de vie m
´
canique
10 x 10
6
commutations
Contacts de signalisation
Equipement des contacts
1 contact de rupture, parall
e
le,
a
guidage forc
´
Tension nominale de coupure U
n
AC 240 V / DC 300 V
Courant continu max. I
n
pour chaque contact
6 A
AC-15 : Ue 230 V, Ie 4 A (360 h
-1
) DC-13: Ue 24 V, Ie 4 A (360 h
-1
)
Cat
´
gorie d
ê
utilisation selon IEC 947 - 5 - 1
AC-15 : Ue 230 V, Ie 3 A (3600 h
-1
) DC-13: Ue 24 V, Ie 2,5 A (3600 h
-1
)
Dur
´
e de vie m
´
canique
10 x 10
6
commutations
Caract
´
ristiques g
´
n
´
rales
Cheminements et claquage entre les circuits
´
lectriques
selon DIN VDE 0110 partie 1 : 04.97
Surtension transitoire assign
´
e
4 kV
Degr
´
de pollution de l
ê
appareil :
a
l
ê
int
´
rieur /
a
l
ê
ext
´
rieur
2 / 3
Tension assign
´
e
AC 300 V
Classe de protection selon DIN VDE 0470 partie 1 : Bo
ı
tier /
bornes
IP 40 / IP 20
Temp
´
rature ambiante / de stockage
-25 ... +55 / -25 ... +75
²
C
Poids
0,21 kg
Donn
´
es sur les bornes et les connexions
Unifilaire (fil rigide) ou fils de faible diam
e
tre (multibrins)
1 x 0,14 mm
è a
2,5 mm
è
2 x 0,14 mm
è a
0,75 mm
è
Longueur de d
´
nudation
max. 8 mm
Fil
a
faible diam
e
tre (multibrins) avec embout selon DIN
46228
1 x 0,25 mm
è a
2,5 mm
è
2 x 0,25 mm
è a
0,5 mm
è
Couple de serrage max.
0,5
a
0,6 Nm