Safety relay - output extension 4004K/SNE 4004KV
  • Safety relay - output extension 4004K/SNE 4004KV

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Manufacturer: Wieland

Safety relay - output extension 4004K/SNE 4004KV

Safety relay - output extension 4004K/SNE 4004KV

Output expansion with relay for base devices in safety applications
• Stop category 0 and 1 according to EN 60204-1 (see “Notes”)
• Applications up to safety category 4 according to EN 954-1
(see “Notes”)
• Single-channel or two-channel control
• SNE 4004K: 4 enabling current paths, undelayed (NO contact)
3 signaling current paths, undelayed (NC contact)
• SNE 4004KV: 4 enabling current paths, OFF-delayed (NO contact)
3 signaling current paths, OFF-delayed (NC contact),
Time buffering

 
Applications
• Expansion of a base device’s enabling current paths
• Contact expansion in safety equipment


Function

SNE 4004K

Supply voltage to the SNE devices is routed via an enabling current path of a base device. When the supply voltage is applied relays K1 and K2 switch into the ON position. After this switch-on phase the four enabling current paths 13 /14, 23 / 24, 33 / 34, 43 / 44 (of the SNE 4004K) or 17/18, 27/ 28, 37/ 38, 47/ 48 (of the SNE 4004KV) are closed and the feedback current path Y1/ Y2 is open. This is displayed through two LEDs that are assigned to relays K1 and K2.When the enabling current paths of the base device are opened through the operation of the emergency stop button, relays K1 and K2 on the SNE 4004K switch back into the OFF position. The enabling current paths open and the feedback current path closes.Feedback current path Y1/ Y2 prevents the base device from switching on again beforeK1 or K2 releases.

SNE 4004KV

The functions of this device correspond to those of the SNE 4004K.The SNE 4004KV is available with the  following four OFF-delay times tR1: 0.5 s; 1 s; 2 s and 3 s. The device has an OFF-delay time that is enabled through capacitors.This causes the OFF-delay time R1 to elapse completely even in case of failure of
the power supply (A1/ A2). It cannot be deleted before it has elapsed. Upontiming-out the relays K1 and K2 switch into the OFF position. OFF-delay timesof > 0 s correspond to stop category 1.

SNE 4004K-A and SNE 4004KV-A

The functions of these devices correspond to those of the SNE 4004K or SNE 4004KV. Devices with the -A identification in their type designation are equipped with four removable pluggable terminals (see the K4-2 dimension diagram).This feature allows a quick installing/removing operation. The terminal locations are coded and not interchangeable
 
Functional diagram
A1/A2 supply voltage
Y1/Y2 feedback path
13/14,23/24,33/34,43/44, LED K1 ,LED K2
51/52 61/62
tA = response time
tR2 = release time
A1/A2 supply voltage
Y1/Y2 feedback path
17/18,27/28,37/38,47/48, LED K1 ,LED K2
55/56,65/66

tA = response time
tR1 = release time
tM = minimum ON time
Proper use

The device can only be used as expansion device for safety switching devices.
• The stop and safety categories achieved by the SNE 4004K / KV always depend
on the categories of the base device. The category of the expansion device
cannot exceed that of the base device. By using the SNE 4004KV max.
category 3 according to EN 954-1 can be achieved.
• The expansion relays K1 and K2 are controlled via one or two enabling current
paths, depending on the required level of safety.
• The devices can be combined with all safety switching devices (base devices).
The feedback current path Y1/ Y2 must be wired to the reset or feedback loop of
the base device.
• The device and the contacts must be protected with max. 6 A utilization
category gG or through circuit breakers with trigger characteristic B or C.
• For connecting magnetic switches with reed contacts or sensors
with semiconductor outputs the peak input current must be considered
(see “Technical data”).
• The devices must be installed in a control cabinet with a protection degree
of at least IP 54.

 

Connection scheme
 
Dimensions [mm]
SNE 4004K/KV SNE 4004K-A/KV-A
Technical dataSNE 4004K/SNE 4004KV
Function according to EN 60204-1
Emergency stop expansion relay
Function display
2 LEDs green
Function diagram
FD 221-13-1 W, FD 221-13-2 W
Power supply circuit
min                              typ
max
Rated voltage UN SNE 4004K
AC/DC 20,4 V                AC/DC 24 V
AC/DC 26,4 V
Rated voltage UN SNE 4004KV
DC 20,4                        DC 24 V
DC 26,4 V
Rated consumption DC
1,0 W
Rated consumption AC
1,5 W/2,7 VA
Residual ripple DC
 
2,4 VSS
Rated frequency AC
50 Hz
60Hz
Rated current / peak current
                                   65 mA/1000 mA
80 mA/1800 mA
Response time tA
                                   20 ms
Release time tR2 SNE 4004K with emergency stop
                                   40 ms
Minimum ON time tM SNE 4004KV
75 ms
Release time tR1 SNE 4004KV (buffered)
                                   0,5 s/1 s/2 s/3 s
Mean value of the error SNE 4004KV
±20 %
Dispersion SNE 4004KV
±2 %
Feedback current path Y1/Y2
1 NC contact, positively driven
Rated switching voltage Un
DC 24 V
Max. continuous current In
0,1 A
Contact material
Ag alloy, gold-plated
Output circuits
 
Enabling current paths
4 NO contacts, positively driven
Rated switching voltage Un
AC/DC 230 V
Max. continuous current In/max. total current
6 A/12 A
Application category according to EN 60947-5-1  3600 h-1
                                                                360 h-1
AC-15: Ue 230 V, Ie 6 A / DC-13: Ue 24 V, Ie 3 A
DC-13: Ue 24 V, Ie 6 A
Short-circuit protection, max. fuse insert
6 A class gG or circuit breaker with trigger characteristic B or C
Mechanical life
10x10
switching cycles
Contact material
Ag alloy, gold-plated
Contact material
2 NC contacts, positively driven
Rated operating voltage U
 UN
AC/DC 230 V
Max. continuous current In
2 A
Contact material
Ag alloy, gold-plated
General data
 
Creepage distances and clearances between the circuits
według EN 60664-1
    Overvoltage category
III
    Rated impulse voltage
4 kV
    Rated voltage
AC 300 V
    Degree of pollution of the device: inside / outside
2/3
Protection degree according to DIN EN 60529 (housing / terminals)
IP 40/IP 20
Ambient temperature / storage temperature
-25 - +55 °C/-25 - +75 °C
Dimension diagram
K 4-1 (screw terminals)/ K 4-2 (pluggable terminals)
Rated cross sections fine-stranded/solid
       or fine-stranded with ferrules
2x0,14 - 0,75 mm2/1x0,14 - 2,5 mm2
1x0,25 - 2,5 mm2/2x0,25 - 0,5 mm2
 
 
Permissible tightening torque
0,5 – 0,6 Nm
Weight
0,20 kg
Accessories
-
Approvals
 

 

Overview of devices/part numbers
type OFF-delay Rated voltage Terminals      numer    Std. Pack
SNE 4004K - AC/DC 24 V 50-60 Hz Terminal block, rising cage termination R1.188.0520.0        1
SNE 4004K-A - AC/DC 24 V 50-60 Hz Pluggable connector, rising cage termination R1.188.0590.0        1
SNE 4004KV 0,5 s DC 24 V Terminal block, rising cage termination R1.188.0550.0        1
1 s DC 24 V Terminal block, rising cage termination R1.188.0560.0        1
2 s DC 24 V Terminal block, rising cage termination R1.188.0570.0        1
3 s DC 24 V Terminal block, rising cage termination R1.188.0580.0        1
SNE 4004KV-A 0,5 s DC 24 V Pluggable connector, rising cage termination R1.188.0460.0        1
1 s DC 24 V Pluggable connector, rising cage termination R1.188.0470.0        1
2 s DC 24 V Pluggable connector, rising cage termination R1.188.0480.0        1
3 s DC 24 V Pluggable connector, rising cage termination R1.188.0490.0        1

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