EUCHNER RPS Series User manual

EN
Operating Instructions
Rope Pull Switches
RPS…

Operating Instructions
Rope Pull Switches RPS…
2(translation of the original operating instructions) 2090276-10-12/20
Contents
1. Correct use .......................................................................................................... 3
2. Layout.................................................................................................................. 3
3. Function............................................................................................................... 4
3.1. RPS…S .........................................................................................................................................4
3.2. RPS…P..........................................................................................................................................4
3.3. Pre-failure monitoring (optional)........................................................................................................4
4. Safety precautions................................................................................................ 5
5. Identication of the rope pull switch ...................................................................... 6
5.1. Identication by designation.............................................................................................................6
5.2. Identication by item number ...........................................................................................................6
6. Dimensions .......................................................................................................... 7
7. Mounting.............................................................................................................. 8
8. Selection of system components ........................................................................... 9
8.1. Tensioner spring .............................................................................................................................9
9. Installation sequence .......................................................................................... 10
10. Mechanical function test ..................................................................................... 12
11. Electrical connection .......................................................................................... 13
11.1. Connection of RPS… ....................................................................................................................13
11.2. Connection of RPS-M… .................................................................................................................13
12. Connection example ........................................................................................... 14
13. Setup ................................................................................................................. 14
13.1. Mechanical function test................................................................................................................14
13.2. Electrical function test...................................................................................................................14
14. Technical data .................................................................................................... 15
15. Switching elements............................................................................................. 16
16. Maintenance/service.......................................................................................... 16
17. Exclusion of liability ............................................................................................ 17
18. Accessories........................................................................................................ 17
19. EC declaration of conformity............................................................................... 18

3
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
1. Correct use
According to EN 60947-5-5 and EN ISO 13850, rope pull switches can be used to initiate an emergency stop function in
order to avoid existing or impending hazard situations.
The following applicable standards must be taken into account for this purpose:
ÌRegulations on installation and operation: ENISO13849-1
ÌRisk assessment on the machine: ENISO12100
ÌFunctional requirements and design principles for the emergency stop function: ENISO13850
The purpose of these regulations is to prevent any danger for persons or damage to machines.
The safety rope pull switches of the series RPS have been designed and tested in accordance with the standards EN60947-5-5
and ENISO13850. They must be used only in control circuits.
Safety rope pull switches are used on the accessible sides of conveyor systems or machines. In contrast to emergency
stop switches (e.g. mushroom-head pushbuttons) located at certain intervals that allow the emergency stop signal to be
generated only at the devices themselves, rope pull switches allow signal generation at any point along the rope length.
The safety rope pull switches of the type RPS are intended for use only in closed rooms.
2. Layout
The safety rope pull switches of the type RPS consist of a polyamide housing, those of the type RPS-M of a die-cast aluminum
housing. They achieve the specied degree of protection IP67 if the cover is properly closed and if a cable gland is used
that offers at least equivalent protection. The RPS has three cable entries M20x1.5.
The switches comply with the international requirements according to EN60947-5-5 and ENISO13850, i.e. after actuation
or a rope tear, the emergency stop switch latches automatically and the switch can then be reset to its initial position only
by means of the resetting device on the switch.
Depending on the switch version, it is possible to achieve a rope length of up to 75m. It must be taken into account here
that the friction in the overall system can become so high due to the rope guides that this makes it difcult or impossible
to reset the system (see “Mounting” section).
This can be avoided by choosing different system components.
The user is responsible for ensuring that the system functions properly.

Operating Instructions
Rope Pull Switches RPS…
4(translation of the original operating instructions) 2090276-10-12/20
3. Function
The system consists of the switching device, a red pull rope, support points and a counterspring.
The pull device of the rope pull switch is connected with a pull rope. The emergency stop function can be tripped by pulling
this rope. Since the rope pull system is pretensioned by an integrated spring, switch latching and the emergency stop
function are tripped immediately if the rope tears. The safety contacts remain latched after activation. After the hazardous
situation has been remedied and after examination of the entire rope pull section, the system may be reset to readiness
for operation again.
max. 75 m/37.5 m/25 m (246 ft/123 ft/82 ft)
S
F
150 mm (6") 3 - 5 m (9,8 - 16,4 ft)
System operating
position
Triggering/
latching
Rope tear
RESET by the
operator
STOP triggering by
operator/automatic
latching
STOP triggering
automatic/latching
automatic
3.1. RPS…S
The RPS…SC… types have an integrated red emergency stop slam button that can be
actuated by pressing it if a hazardous situation occurs. Analogously to operation of the pull
rope, the safety contacts are then opened and the switch is latched. After rectication of the
hazardous situation, the system can be reset manually to readiness for operation by pulling.
Please also refer to item 3 in chapter 9. Installation sequence.
3.2. RPS…P
After the hazard situation has been remedied, and with the rope system tensioned, the rope pull switch can be unlocked
and so made operational again by pulling the Reset knob.
3.3. Pre-failure monitoring (optional)
The safety rope pull switches of the type RPS-M-E-… have a remote display for monitoring the rope tension. It uses an
integrated sensor unit to monitor the permissible rope tension for being exceeded and impending activation of the safety
rope pull switch.
Required maintenance/adjustment is signaled via an electronic output in good time before unintentional machine standstills
occur. Optionally available signal lamps can also be connected to this output (refer to chapter 18. Accessories). This meets
the requirements for preventive maintenance.

5
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
4. Safety precautions
ÌAll system components must be mounted on surfaces that can reliably withstand all the forces that may occur.
ÌRouting the rope as straight as possible results in low frictional forces in the system. From a system length of 25m,
only rope pulley blocks may be used as rope supports. Rope pulley blocks and other accessories are optionally avail-
able.
ÌPositioning the support points at irregular intervals prevents rope oscillations that might cause false tripping.
ÌThe red pull rope must have sufcient space between the support points to ensure that secure gripping and activation
are possible. To improve visibility, marking ags can be attached to the pull rope along its length; however, these must
not interfere with activation of the emergency stop function!
ÌWhen a rope pull section is being set up and planned, it is necessary to take into account and comply with the applica-
ble regulations, as well as the maximum permitted actuating travel of S = 400mm and maximum tripping force of F =
200N applied perpendicularly to the rope.
ÌSuitable guide rollers (roller diameter ≥ 50mm) must be used for rope routing at angles. The rope pull section must be
angled by no more than 180° (e.g. 2x90°).
ÌImproper installation of or tampering with the rope pull switch will lead to loss of the personnel protection function and
can cause serious or fatal injuries.
ÌRope pull switches must not be bypassed (bridging of contacts), turned away, removed or otherwise rendered ineffec-
tive.
ÌMounting, electrical connection and setup only by authorized personnel.
ÌIf damage or wear is found, the complete switch must be replaced. Replacement of individual parts or assemblies is not
permitted!
ÌThe user is responsible for safe integration of the device into a safe overall system. For this purpose, the overall system
must be validated, e.g. in accordance with ENISO13849-2.
ÌIf the simplied method according to section 6.3 of ENISO138491:2015 is used for validation, the Performance Level
(PL) might be reduced if several devices are connected in series.
ÌIf a product data sheet is included with the product, the information on the data sheet applies in case of discrepancies
with the operating instructions.

Operating Instructions
Rope Pull Switches RPS…
6(translation of the original operating instructions) 2090276-10-12/20
5. Identication of the rope pull switch
5.1. Identication by designation
RPS-M-E-3131-SC-300M…
RPS3131SC300M
088884
...
...
...
E.g. 300N max. spring force to tension the rope
RWith ring
CQuick fastener and fast-action tensioning device
PBlue reset button
SEmergency stop
3131 Switching function depends on the type used. Switching element 3131 is standard (refer
to chapter 15. Switching elements).
–Without
EPre-failure monitoring
–Plastic housing
MMetal housing
RPS Rope pull switch (switchgear series)
5.2. Identication by item number
The item number of the switch is located beneath the switch designation on the switch label. Please state this number in
correspondence and orders to EUCHNER GmbH + Co. KG.

7
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
6. Dimensions
RPS…SC…/ RPS…PC… RPS…PR…
30
42,5
5 124
91,25
5,3
S=0...52
36
265...317
33
15
37,5
45
76,8
19,5
M20X1,5 (3x)
21
(adjustable via S)
Window
Clamping head
PPull-release (blue
reset button)
SEmergency stop
with pull-release (red
button)
30
42,5
5
124
91,25
5,3
224
33
25
15
15
37,5
45
19,5
76,8
M20X1,5 (3x)
21
Pull lug
PPull-release (blue
reset button)
Window
RPS-M…
88
20,5
20,5
5,4
40
6,5
SW17
30,5
26 S=45
30,5
53
M20x1,5
83
90
10
36
85,5
127
max.=282 / min.=237
48
72
8
78
Clamping head
SEmergency stop with pull-re-
lease (red button)
Window
All dimensions in millimeters

Operating Instructions
Rope Pull Switches RPS…
8(translation of the original operating instructions) 2090276-10-12/20
7. Mounting
NOTICE
ÌUnder ideal installation conditions it is possible to achieve a maximum rope length of 75 m.
ÌDepending on the actual situation, there may be increased friction in the system. This friction may
be so high that automatic resetting is no longer possible as described above. However, activation
in the event of a rope tear must be guaranteed in all cases.
ÌThe amount of friction depends on:
- Number of eyebolts used
- Number of contact angles and deections
- Number and size of guide rollers
- Alignment of rollers and eyebolts with respect to each other.
ÌThe friction can be reduced by using guide rollers with a larger diameter. The system should be
divided up if there is too much friction. The user is responsible for component selection and cor-
rect functioning of the system.
ÌIt is recommended to remove the sheath in the undened operating area of the support points.
Figure 1: Example of proper installation
Figure 2: Examples of improper installation

9
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
8. Selection of system components
A tensioner spring must be installed on the counter bearing in order to ensure proper and safety-compliant implementation
of the rope pull system. This is a precondition for direction-independent activation at any point along the rope length. In
order to achieve fast and simple compliance with this requirement, we recommend the use of EUCHNER tensioner springs
with integrated overstretch protection (see Table 1). Additional xing and installation materials as well as ropes are also
optionally available. A detailed overview is provided in the “Accessories” chapter.
8.1. Tensioner spring
3
M12
LO min.
min. 30
D
L max.
F
tensioned
not tensioned
Table 1: Tensioner springs
RPS type RPS…100/175 RPS…300
Item number 092136 092138
LO min.[mm] 383 483
Lmax. [mm] 487 653
Ø D [mm] 39 48
Tensioner springs are supplied with quick fastener and an eyebolt DIN444-M12x50.
When installing and adjusting the rope pull switch, it is necessary to take into account the physical changes in the rope length
as a result of variations in temperature.
Table 2 shows the permitted rope lengths as a function of the expected temperature difference.
The diagram also shows the maximum permitted rope length for the different spring forces of the respective switch types.
It also permits selection of the appropriate switch corresponding to the expected temperature variations.
RPS…175
RPS…300
0
10
20
30
40
50
60
70
-25 -20
-15 -10
-5 0
510 15
20 25
30 35
40 45 50
55 60
65 70
75 80
Temperaturbereich [°C]
Seillänge [m]
Empfohlene Seillänge in Abhängigkeit von der Umgebungstemperatur
Seillänge [m]
RPS…100
RPS einseitig und ohne Gegenfeder abgespannt
Figure 3: Recommended rope length depending on the ambient temperature

Operating Instructions
Rope Pull Switches RPS…
10 (translation of the original operating instructions) 2090276-10-12/20
Table 2: Permissible rope lengths
Rope length Lmax. in meters [m]
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 55 60 65 70 75
Max. temperature uctuation
[K]
± 40 K
± 35 K
± 30 K
± 25 K
± 20 K
± 15 K
± 10 K
± 5 K
± 3.5 K
RPS…100 Rope length max. 25 m
RPS…175 Rope length max. 37.5 m
RPS…300 Rope length max. 75 m
Rope supports must be provided at intervals of 2–5m when planning and installing the system. Refer also to the “Safety
precautions” chapter.
9. Installation sequence
Installation must be performed only by authorized personnel.
1A 1.1A 1.2A 1.3A

Attach bearing element with tensioner spring; t pull rope: sheathing must be removed in the clamping range; insert
rope into the fast-action clamping head as shown and secure.
B 1.1B 1.2B

Attach bearing element with counterspring; t pull rope: secure rope as shown with thimble and rope clamp, attach
rope bridge to limit travel of counterspring with thimbles and rope clamps.
2A
La = 150 mm
Lg = 200 mm 2-5 m
Rope length
B
2-5 mLa = 150 mm
Rope length
Observe distance to the 1st support points. The 1st rope support toward the switch must be installed after La
=150mm. On the counterspring side, observe the distance Lg=200mm for sufcient tripping travel of the switch.
Install support points at intervals of 2 – 5m.

11
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
3Fasten the RPS switch with 4 M5 screws (also M6 for
RPS-M).
Maximum tightening torque M = 2Nm.
The emergency stop switches must be positioned so that
the rope or emergency stop slam button can be reached
without obstacles in hazardous situations.
17
85
,
5
72
40
48
10
Display
Display
4A
Display
Connect pull rope with fast-action clamping head (see Item 1).
Pre-tension pull rope.
B
Connect pull rope with turnbuckle as shown (3x rope clamp with thimble)
5Basic setting should take place at a temperature corresponding to the prevailing operating conditions.
The length of the pull rope changes if there is a large change in the ambient temperature. Under these conditions,
long rope lengths mean a frequent change in the basic setting.
This can be remedied by re-adjustment (Item 5) or shortening the rope length (Table 3).
A
SW17
Adjusting screw
Remove any leg spring. If necessary, manually adjust the
rope length with the adjusting screw or a at wrench (a/f
17) by turning the screw in until the arrow tips of the rope
tension display align with the marking.
Hold the fast-action clamping head when doing this to
prevent the pull rope from twisting.
Subsequently insert a leg spring or secure the adjusting
screw against loosening by locking with the hexagon nut.
Display
B
Adjust the turnbuckle until the arrow tips of the display align with the marking.

Operating Instructions
Rope Pull Switches RPS…
12 (translation of the original operating instructions) 2090276-10-12/20
10. Mechanical function test
6Pull button up:
Ìsafety contacts closed.
Actuate pull rope or press
button:
Ìsafety contacts open.
For each test procedure:
Ìactuate button or
Ìpull rope.
max. 200 N
S max. 400 mm
Forcefully actuate the pull rope several times to settle the rope pull section.
If necessary, correct the adjustment with the adjusting screw/turnbuckle.

13
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
11. Electrical connection
WARNING
ÌElectrical connection must be performed only by authorized personnel.
ÌStrip the insulation from the ends of the individual wires over a length of 6±1mm to ensure a
reliable contact.
NOTICE
ÌAt least one contact must be used.
11.1. Connection of RPS…
1. Release cover using a screwdriver.
2. Open break-out wall by screwing in the cable gland; remove the
plastic part.
3. Tighten the cable gland.
4. Connection to cage pull spring.
5. Insert screwdriver (2.5mm blade width) into the bottom opening (1).
6. Turn screwdriver by 45° (2).
7. Insert exible cable with a cross-section of 0.5…1.5mm² into the
upper opening (3). The cable end must be tted with a cable end
sleeve.
8. Remove screwdriver.
9. Press on cover.
11.2. Connection of RPS-M…
1. Remove cover: To do this, unscrew the cover screws with a screw-
driver and remove the cover.
2. Electrical connection: The electrical contacts of the switches have M3.5
screw terminals. For terminal assignment, see chapter 15. Switching
elements. The connection must be made as a stranded wire with cable
end sleeve or as a single conductor with the conductor cross-sections
0.5…1.5mm².
3. Close cover: Place the cover on the housing as shown and tighten the cover
screws with a torque of 2Nm.

Operating Instructions
Rope Pull Switches RPS…
14 (translation of the original operating instructions) 2090276-10-12/20
12. Connection example
The following connection example shows a possible circuit structure with redundant design at the cable level as well.
The signals of the emergency stop chain are evaluated by a safety relay (ESM from EUCHNER).
The overall control concept into which the rope pull switch RPS is integrated must be evaluated by the end consumer/
machine designer in accordance with ENISO13849-2.
Figure 4: Connection example
13. Setup
13.1. Mechanical function test
It must be possible to actuate the pull rope easily at every point of the rope pull system. As a check, actuate the pull rope
several times.
13.2. Electrical function test
1. Activate the rope pull safety system by means of the RESET actuating cylinder.
2. Start the installation/machine.
3. Actuate the pull rope/emergency stop button This results in the safety contacts opening immediately.
4. The safety contacts close only after renewed operation of the RESET actuating cylinder.

15
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
14. Technical data
Version RPS… RPS-M…
Electrical data (refers to the switch without plug connector)
Rated insulation voltage Ui250 V/AC
Rated operating voltage Ue240 V
Rated impulse withstand voltage Uimp 2.5 kV
Conditional short-circuit current 100 A
Continuous thermal current Ithe 10 A
Utilization category AC 15; 240 V/ 3 A AC 15; 240 V/ 3 A
DC 13; 250 V/ 0.27 A
Short circuit protection 6 A gG acc. to IEC60269-1
Safety class II I
Positively driven NC contacts IEC/ EN60947-5-1, Appendix K
Pre-failure monitoring RPS-M-E…
Rated operating voltage Ue10-30 V/DC
Rated operating current Ie50 mA
Utilization category DC 13
Short circuit protection Yes
Reverse polarity protection Yes
Connection Screw terminal, 3-pin
= 1.5 mm²
Mechanical data
Housing/cover PA 6 GV (UL94-V0) Die-cast aluminum
Emergency stop PA, ber glass reinforced
Actuation Die-cast zinc/steel
Ambient temperature -25°C to +70°C -30°C to +80°C
Mechanical life Acc. to IEC60947-5-5 1 x 105operating cycles
Switching frequency ≤ 20/min.
Latching device Acc. to EN60947-5-5, ISO13850 (DINEN418)
Emergency stop reset Button pull acc. to EN60947-5-5
Rope length Depending on type Lmax ≤ 75m/37.5m/25m (observe Table 2)
Rope Ø D = Ø 2 - 5 mm
Rope attachment RPS…SC/PC… fast-action clamping device / PR… by means of ring
Connection 8 x cage pull spring
0.5 … 1.5mm² ex.
8 screw terminals (Ø3.5)
0.5 … 1.5mm² ex.
Cable entry 3 x M20x1.5
Mounting 4 x M5 4 x M5 or 4 x M6
Weight Approx. 0.65 kg Approx. 1.0 kg
Degree of protection IP67
Reliability values acc. to ENISO13849-1
B10D at DC-13 100mA/24 V 2 x 105
Regulations EN60947-1, EN60947-5-1, EN60947-5-5, ENISO13850
Approvals c CSA us / BG

Operating Instructions
Rope Pull Switches RPS…
16 (translation of the original operating instructions) 2090276-10-12/20
15. Switching elements
The values for the tensile force depend on the switch type used (RPS…100/RPS…175/RPS…300).
Tolerance: tensile force ±15%
Travel diagram RPS2131…
300N/175N/100N
240N/140N/80N
180N/105N/60N
13 - 14 21 - 22 31 - 32 41 - 42
13 14
21 22
31 32
41 42
ON OFF
Tensile force N ±15%
Detent mechanism
Detent mechanism
2131
13
14
21
22 31 32
41 42
13 14
21 22
31
32
41
42
2131
Travel diagram RPS3131…
300N/175N/100N
240N/140N/80N
180N/105N/60N
13 - 14 21 - 22 33 - 34 41 - 42
13 14
21 22
33 34
41 42
ON OFF
Tensile force N ±15%
Detent mechanism
Detent mechanism
3131
13
14
21
22 33 34
41 42
13 14
21 22
33
34
41
42
3131
Travel diagram RPS-M-3131… with metal housing
Travel diagram RPS-M-E-3131… with metal housing and pre-failure monitoring
288N / 133N
156N / 91N
300N / 175N
-
6mm
-4
,
8mm
-4mm
-3mm
0mm
+3mm
+4mm
+4
,
8mm
+6mm
11 - 12 23 - 24 11 - 12 23 - 24 2 - 3
S1 S2
ON OFF
Pre-failure monitoring
Detent mechanism
Detent mechanism
Tensile force N ±15%
S1
23 24
11 12
23
24
11
12
S2
23 24
11 12
23
24
11
12
3131
-
3
1
2
+
Pre-failure monitoring
16. Maintenance/service
In order to ensure trouble-free, long-term operation, it is necessary to perform regular, documented inspection of the following:
Ìsmooth actuation
Ìcorrect switching function
Ìcorrect rope tension
Ìsecure mounting of components
Ìdirt and wear
Ìsealing of cable entry
Ìloose cable connections or plug connectors.
After servicing or repair, correct functioning of the system should be checked by actuating the pull rope several times. It
must be ensured that the switch latches properly after actuation.
In the event of a fault in the switching system or latching device, the switch must be replaced and can be sent to
EUCHNER GmbH + Co. KG for inspection.

17
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN
17. Exclusion of liability
If the instructions (correct use, safety regulations, mounting and connection by trained personnel, check for safe function)
are violated, this renders the manufacturer’s liability null and void.
18. Accessories
Designation Description/version Packaging unit Order no./item
Eyebolt Thread M8 5 pcs. 092495
RPS-O-8-50/V5
Rope set Consisting of thimble and rope clamp 5 pcs. 092496
RPS-RS/V5
Pulley set RPS-PS/V5 Rope pulley block with swiveling lug (roller Ø 6mm) and fastening
clamp 5 pcs. 092501 RPS-PS/V5
Rope pulley block RPS-P/V1 Rope pulley block (roller Ø 14mm) 1 pcs. 096251
RPS-P/V1
Tensioning rope
Length 50m 1 pcs. 092813
RPS-I-3-4/50M
Length 100m 1 pcs. 092814
RPS-I-3-4/100M
Built-in LED
Light radiation to side 1 pcs. 087423
LED M20x1.5
Light radiation to front 1 pcs. 095510
LED M20x1.5
Turnbuckle
M6 x 60 5 pcs. 092498
RPS-B-6-60/V5
M6 x 110 1 pcs. 092500
RPS-B-6-110
Tensioner spring
For RPS 100, 175 1 pcs. 092136
RPS-W-100-175
For RPS 300 1 pcs. 092138
RPS-W-300

Operating Instructions
Rope Pull Switches RPS…
18 (translation of the original operating instructions) 2090276-10-12/20
19. EC declaration of conformity

19
2090276-10-12/20 (translation of the original operating instructions)
Operating Instructions
Rope Pull Switches RPS…
EN

EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
[e-mail]
www.euchner.com
Edition:
2090276-10-12/20
Title:
Operating Instructions Rope Pull Switches RPS…
(translation of the original operating instructions)
Copyright:
© EUCHNER GmbH + Co. KG, 12/2020
Subject to technical modications; no responsibility is accept-
ed for the accuracy of this information.
0800000912_01