Schneider Electric Xus-lc, Xus-la User Manual
XUS-LA / XUS-LC
Telemecanique
Manuel d'instructions
Operating instructions
manual
Betriebsanleitung
Instrucciones de servico
Istruzioni d'uso
Barrière immatérielle de sécurité type 4
Safety light curtain type 4
Berührungslos wirkende
Schutzeinrichtung Type 4
Barreras inmateriales de seguridad type 4
Barriere immateriali di sicurezza type 4
XUS-LA / XUS-LC
Manuel d'instructions Page 2
Operating instructions manual Page 34
Betriebsanleitung Seite 72
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Instrucciones de servico Página 104
Istruzioni d'uso Seite 136
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XUSL Safety Light Curtain
Table of Contents
1 Statutory regulations.............................................................................35
1-1 Compliance with European Directives .......................................................................... 35
1-2 Compliance with European Standards ......................................................................... 35
1-3 Compliance with US Standards .................................................................................... 35
1-4 Installation..................................................................................................................... 36
1-5 North America Approvals .............................................................................................. 36
1-6 Statutory Regulations - European Union ...................................................................... 36
1-7 Statutory Regulations – United States.......................................................................... 40
1-7-1 General Requirements.................................................................................................. 40
1-7-2 Calculating Minimum Safety Distance .......................................................................... 40
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2 Description of the XUSL safety light curtain.......................................44
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2-1 Operating principle........................................................................................................ 44
2-2 Environmental considerations....................................................................................... 44
2-3 Defining the protected Height (Hp) ............................................................................... 44
2-4 Nomenclature ............................................................................................................... 45
2-5 Detection characteristics of the XUSL light curtain ....................................................... 45
2-6 Technical Characteristics .............................................................................................. 46
2-7 Principal Operating Features ........................................................................................ 48
2-8 Dimensions ...................................................................................................................49
2-9 Identifying components................................................................................................. 50
3 Installation ..............................................................................................51
3-1 Mounting ....................................................................................................................... 51
3-2 Wiring diagrams............................................................................................................ 54
4 Setting Up ...............................................................................................57
4-1 Operating Mode ............................................................................................................ 57
4-2 Selection of operating mode ......................................................................................... 59
4-2-1 Using READ Mode........................................................................................................ 60
4-2-2 Using the configuration menu (CONF) ......................................................................... 61
4-2-3 Using the installation mode (INST) ............................................................................... 63
4-2-4 Using REMO menu ....................................................................................................... 65
4-3 Checks .......................................................................................................................... 65
5 Operation ................................................................................................66
6 Maintenance ...........................................................................................67
6-1 Periodic Maintenance : testing with the test rod ........................................................... 67
6-2 Preventative maintenance ............................................................................................ 67
6-3 Repairs ......................................................................................................................... 67
6-3-1 Using the Diagnostic Mode (DIAG)............................................................................... 69
6-4 Test Procedure – United States .................................................................................... 71
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XUSL Safety Light Curtain
WARNING
!
HAZARDOUS OPERATIONS
This device must be installed, set-up and serviced only by qualified personnel.
•
User must follow all applicable codes, standards and regulations.
•
Do not alter or modify this equipment.
•
Light curtain must not be used with single stroke (full revolution clutched) machinery.
•
Machine must be capable of stopping immediately at any place in its stroke after
•
receiving a stop signal.
Light curtain must not be used as tripping device.
•
Light curtain will not protect operators and other personnel from liquids, gases, chips,
•
hot surfaces and other debris from point of operation.
Failure to follow these instructions can result in death or serious injury.
1 Statutory regulations
The Schneider Electric Declaration of Compliance supplied with the XUSL light curtain, which is
commercialised under the brand name of Square D and Telemecanique specifies :
1-1 Compliance with European Directives
- Consolidated machinery directive 98/37/EEC,
- Low voltage directive 73/23 EEC,
- Electromagnetic compatibility directive (EMC) 89/336 EEC.
1-2 Compliance with European Standards
EN 954-1 (03/97) : .......... safety of machinery - safety related parts of control systems,
EN 61496-1 (06/98) : ...... (IEC 1496-2) safety of machinery - electro-sensitive protective equipment
(ESPE),
prEN 50100-2 (08/94) : .. (in support EN 954-1 (03/97)) safety of machinery - particular requirements
for systems using active opto-electronic devices
The XUSL safety light curtain have been certified as being of type 4, according to the
standards described above.
1-3 Compliance with US Standards
US Standards to be followed
Standards referenced in this document are listed below. This is not a complete listing of all applicable
standards to be referenced when using light curtains. There may be other OSHA, ANSI, ANSI/RSA,
NEC, NFPA, national, state, and local codes that may include requirements for installation of light
curtains on machinery.
OSHA 1910.211 ANSI B11.1
OSHA 1910.212 ANSI B11.19
OSHA 1910.217 ANSI B11.20
ANSI/RSA 15.06
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Note : . If the light curtain is to be used on machinery that will be standardized throughout North
America and Europe, then all minimum distance formulas in section 1-6 and 1-7 must be
calculated, and the largest separation distance must be used.
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XUSL Safety Light Curtain
1-4 Installation
EN 292-1 and 2 : ............. safety of machinery - fundamental warnings - general design principles,
EN 60204-1 : ................... safety of machinery - electrical equipment for machines, 1st part (general
prEN 999 :....................... safety of machinery - hand/arm speed and the approach of parts of the
EN 294 and EN 811 : ...... safety of machinery - safety distances to prevent upper and lower limbs
1-5 North America Approvals
The XUSL safety light curtain is .
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1-6 Statutory Regulations - European Union
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The minimum safety distance between the light curtain and the danger zone (general case :
perpendicular approach of the danger zone) according to pr EN999 :
Transmitter
XUSL•T
rules),
human body to position protection devices,
entering dangerous zones.
Danger zone
≥ S
Receiver
XUSL•R
Danger
zone
SL
≥ S
If there is a C type standard for the machine that is to be protected use the distance specified by this
standard. -
• Otherwise use formula "S" defined by the European standard pr EN 999 for calculating the
safety distance ==> General Formula :
S = K (t1 + t2) + C
S : minimum safety distance between the danger zone and the axis of the light curtain.
t1 : response time of the light curtain (in seconds). The time t1 is given on the nameplate of the
apparatus.
t2 : time needed to stop the dangerous movements of the machine (in seconds).
K : theoretical speed of approach of the body or body part.
C : additional safety distance.
• In the case of presses and new machines put into service in accordance with the EEC
machine directive 89/392 : the parameters are as follows :
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European standards
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K (mm/s)
K (in/s)
2000 / 78.74
C (mm) for XUSL 14 mm
C (in) for XUSL 0.55 in
0/0 120 / 4.72
C (mm) for XUSL 29 mm
C (in) for XUSL 1.14 in
XUSL Safety Light Curtain
Using the General Formula and parameters "K" and "C" that correspond to the light curtain,
calculate the minimum safe distance "S".
• If "S" is calculated at = 500 mm (19.68 in) this value should be retained (Note : S must be
at least 100 mm (3.94 in)).
• If "S" is calculated at > 500 mm (19.68 in) the calculation can be re-done using the alternate
formula. The value "S" that is retained should be at least 500 mm (19.68 in) ==> Alternate
Formula:
For mm :
S = 1600 (t1 + t2) + C
For in :
S = 63 (t1 + t2) + C
Minimum distance Maximum distances
S = 100 mm
S = 3.94 in
If the distance "S" calculated is such that an operator can stand between the
barrier and the danger zone, additional protection is required (ie. Physical guard
or barrier comprising several parts, consult standards).
Danger
zone
H
H
Parallel approach
Danger
zone
Angular approach
S
H
1st calculation
For mm : S = 2000 (t
For inches : S = 79 (t
S
α
1+t2
1+t2
• Parallel approach to the danger zone
When the direction of approach is parallel to the detection
area, the minimum safety distance "S" between the
dangerous zone and the beam furthest away from the
dangerous zone, depends on height "H" at which the
light curtain is installed. This safety distance "S" must be
calculated using the following formula :
For mm :
For in :
The maximum height allowed "H" is 1000 mm (39.37 in).
Once the height "H" is above 300 mm (11.81 in),
additional protective devices must be used.
• Angular approach to the danger zone
When the operator’s direction of approach and the
detection area form an angle α, then the formulas to be
used to calculate the safety distance "S" depends on this
angle :
• when the angle α is greater than 30°, the formulas
• when the angle α is less than or equal to 30°, then
If "S" is calculated ≥ 500 mm (19.7 in)
) + C
) + C
For mm :
the calculation is re-done :
For mm : S = 1600 (t1+t2) + C
For inches : S = 63 (t
S ≥ 1600 (t1 + t2) + 850
For in :
S
≥
63 (t1 + t2) + 33.5
if 875 mm < H ≤ 1000 mm
if 34.45 in < H ≤ 39.37 in
or
S ≥ 1600 (t1 + t2) + (1200 - 0,4 H)
S
≥
63 (t1 + t2) + (47.2 - 0.4 H)
if 0 mm < H ≤ 875 mm
if 0 in < H ≤ 34.45 in
given for the perpendicular direction of approach
to the detection area must be used.
the formulas given for the parallel direction of
approach to the detection area must be used.
1+t2
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) + C
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XUSL Safety Light Curtain
Danger
zone
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NO
S
H
• Case of an L-shaped curtain
The maximum allowed height "H" is 1000 mm
(39.37 in).
Once "H" > 300 mm (11.81 in) additional protective
devices must be used. Calculate the "S" distance
(see section 1-6).
General note:
The operator must not be able to pass around the
XUSL safety curtain and into the dangerous zone be
it from above, below or the side.
The operator must not be able to come between the
danger zone and the XUSL safety curtain without
being detected.
• Entry into the dangerous zone from above the
light curtain.
YES
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NO
NO
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• Entry into the dangerous zone from below the
light curtain.
YES
• Passing between the light curtain and the
dangerous zone.
YES
XUSL Safety Light Curtain
• Installation near a reflective surface
Potential reflective surfaces include lacquered steel panels, shiny sheet metal or stainless steel. This
reflective surface must be taken into account if it causes unwanted light rays which could make the
beam go around the obstacle to be detected. It is necessary then to take into account a minimum
distance "dr" between the axes of the nearest beam and the reflective surface. This distance is
measured from the mid-point between the transmitter and the receiver (range "L").
Reflective surface
dr
T
L / 2 L / 2
L
Value of "dr" according to "L" range
678910
Distance "dr" (mm)
450
400
350
300
250
200
150
100
01
2345
"L" range (m)
When the reflective surface is in the dangerous zone and if "dr" is greater
then "S", then the value of "dr" will be used as the value for the minimum
safe distance "S".
IMPORTANT NOTE ABOUT THE MACHINE SHUT-DOWN MECHANISM
Entry into danger zone
Detection by the XUSL light curtain
Transmission by connecting cables
Command of switches (relay)
Components stopping
dangerous movements activated
Using the tables below, locate your distance "L"
XUSL•RXUSL•T
and read the distance 'dr" corresponding to the
upper curve (black line).
R
Eg. for L = 4.6 m, dr = 230 mm is used
Eg. for L = 181 in, dr = 9.05 in is used
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16
14
12
10
8
6
Distance "dr" (in)
4
03979
118
197
157
236
"L" range (in)
275
315
354
394
The XUSL light curtain is the first link in the chain that
shuts down the dangerous movements of the machine.
This whole mechanism must ensure the same level of
safety as the XUSL light curtain ( level type 4). To
ensure this, you must :
• take the greatest care in installation, particularly
that of the electrical equipment and the XUSL
light curtain, mechanically protecting connection
cables (protective covers/cable plugs).
• Insure the ground terminals are properly
connected to earth.
• respect the maintenance guidelines.
XUSL
light
curtain
alignment
limit
XUSL
light
curtain
aligned
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DANGEROUS MOVEMENTS
STOP
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XUSL Safety Light Curtain
1-7 Statutory Regulations – United States 1-7-1 General Requirements
WARNING
!
HAZARDOUS OPERATION
Read important safety messages that follow.
Failure to follow these general requirements can result in death or serious injury.
• This device must be installed, set-up and serviced only by authorized personnel. ANSI defines
Authorized Personnel in ANSI B30.2-1983
• User must follow all applicable codes, standards and regulations. Standards specifically
referenced in this document need to followed: ANSI B11.1 through B11.20, OSHA 29 CFR 1910
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standards, and ANSI/RIA R15.06 standard. There may be other national and local standards that
may also need to be followed.
• Do not alter or modify this equipment.
• Light curtains must be securely mounted to a rigid surface using the mounting brackets supplied.
• Machine must be capable of stopping immediately at any place in its stroke after receiving a stop
signal.
• Light curtain must not be used with single stroke (full revolution clutched) machinery.
• Light curtain must not be used as a tripping device, such as in PSDI applications.
• Read and understand Sections 1 and 2 of this manual for important details regarding standards,
spacings and safe operating distances and stopping times before beginning installation.
• Light curtains may not be used as a lockout device to meet OSHA lock-out/tag-out requirements.
• Light curtain will not protect machine operators and other personnel from liquids, gases, chips, hot
surfaces and other debris from point of operation.
• Light curtain must be sized and installed so that machine operator cannot reach over, under or
around the sensing field to reach the point of operation.
• Light curtains must be installed so the machine operator cannot position themselves between the
hazardous area (pinch point) and the light curtain.
• Light curtains currently cannot be used as PSDI devices to initiate machine movement on
mechanical power presses. For PSDI, refer to OSHA 29 CFR 1910.217 (h), the various
appendices referenced on PSDI, and OSHA mandatory regulations requiring third party approval.
1-7-2 Calculating Minimum Safety Distance
The basic formulas for calculating minimum safety distances are listed below. ANSI B11.1 is listed
first, OSHA 29 CFR 1910.217 listed next.
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Transmitter
XUSL•T
Te
Hazardous area
≥ D
s
Receiver
XUSL•R
Hazardous
area
≥ D
s
SL
XUSL Safety Light Curtain
ANSI B11.1:
This formula applies specifically to the guarding of mechanical power presses, but it is typically used
on other applications as well.
Ds = K x (Ts + Tc + Tr + Tbm) + D
Ds = ... Minimum safe distance between the light curtain sensing area to the nearest point of
operation potential hazard.
K =..... Hand speed constant of 63 inches per second. This is the standard minimum accepted value
for both ANSI and OSHA. ANSI recognizes this constant may not be optimal, and that the
user should consider all factors before deciding on the value of the K factor to use in the above
formula.
Ts=..... Stop time of the machine (press), as measured from the final control element. It is measured
at the maximum velocity of the press, usually at 90° of press rotation on the downstroke.
Tc=..... Response time of the control circuit to activate the braking system.
Note: Ts and Tc are usually measured as one value by a stop time measurement device.
Tr= ..... Response time of the light curtain.
Tbm= ... Additional time allowed for the brake monitor to compensate for wear and variations in the
stopping time. Brake monitors will stop the machine (press) when the stop time of the
machinery exceeds a pre-set limit.
Note: ... If a brake monitor is not installed on the machine, a factor must to be added to the
measured stop time to include brake wear. Generally , brake monitors add approximately
20% to 25% additional stop time. To determine the actual factor to be used, contact
machine manufacturer.
Dpf=.... Penetration depth factor, to provide for possible penetration through the sensing field by
fingers or hands before detection occurs. This value is determined by the Penetration Depth
Factor Chart from ANSI B11.1 (see Penetration Depth Factor Calculator graph on the next
page). Alternately, the following ANSI formula can be used: Dpf = 3.4 (S-0.276), where S =
minimum object sensitivity.
Example:
For devices with minimum object sensitivity of 14 mm (0.55 in):
pf
Dpf = 3.4 x (.55-0.276) = 23.88 mm (0.94 in)
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For devices with minimum object sensitivity of 29 mm (1.14 in):
Dpf = 3.4 x (1.14-0.276) = 74.68 mm (2.94 in)
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XUSL Safety Light Curtain
Penetration Depth Factor Calculator
63,5 (2,5)
50,8 (2)
38,1 (1,5)
25,4 (1)
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12,7 (0,5)
A
Minimum Object Sensitivity (S) in mm (in)
0
0
25
(1)
Penetration Factor Dpf in Millimeters (Inches)
A = Finger Protection 14 mm (0.55 in) has a Dpf of 23.88 mm (0.94 in)
B = Hand Protection 29 mm (1.14 in) has a Dpf of 74.68 mm (2.94 in)
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(2)
B
76
(3)
Dpf = 3.4 (S - 0.276)
102
(4)
127
(5)
152
(6)
178
(7)
203
(8)
OSHA: CFR 1910.217 ( c )(3)(iii)(e)
This formula applies specifically to the guarding of mechanical power presses, but it is typically used
on other applications as well.
Ds = 1600 mm (63 in) per second x T
Where:
Ds = ... Minimum safety distance (millimeters / inches)
1600 mm (63 in) per second = hand speed constant
Ts = .... Stopping time of the press measured at approximately 90° position of the crankshaft rotation
(seconds). Stop time of the machine (press), as measured from the final control element.
It is measured to determine worst case time and maximum velocity of the press. Usually at
90° of press rotation on the downstroke.
In addition to the formula above, we recommend that OSHA 1910.217 Table O-10 be followed and
the distance be added to "Ds". Per OSHA, the table on the next page shows the maximum width of
openings allowed for a guard based on the distance from the guard (light curtain) to the point of
operation hazard. The Maximum Width of opening in the table below corresponds to the Minimum
Object Sensitivity for a light curtain. When the distance is determined from this table, based on the
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XUSL Safety Light Curtain
Minimum Object Sensitivity of the light curtain used, this distance is added to the minimum safe
distance from the previous calculations for "Ds" in this section.
Example: Using the formula: Ds = 1600 mm (63 in) per second x T
if Ts = 0.10 sec
Ds = 1600 mm (63 in) X 0.10 = 160 mm (6.3 in)
• For an XUSL light curtain with a minimum object sensitivity of 14 mm (0.55 in):
Using the example above, the separation distance from the point of operation hazard to the light
curtain would be 160 mm (6.3 in) + a minimum distance (from table O-10) of 89 mm (3.5 in), for
a total separation distance of 249 mm (9.8 in). The 3.5 inches was chosen from Table O-10 as the
additional distance because the opening (minimum object sensitivity) is .55 inches. Since 0.55 inch
is larger than 1/2 (0.50) inches, the value for 0.50 inch cannot be used. Therefore the next larger
opening, 5/8, must be used and the distance corresponding to 5/8 opening is 3
• For an XUSL light curtain with a minimum object sensitivity of 29 mm (1.14 in) :
Using the example above, the separation distance from the point of operation hazard to the light
curtain would be 160 mm (6.3 in) + a minimum distance (from table O-10) of 191 mm (7.5 in), for
a total separation distance of 351 mm (13.8 in). The 7.5 inches was chosen from Table O-10 as
the additional distance because the opening (minimum object sensitivity) is 1.14 inches. Since 1.14
inches is larger than 7/8 inches, the value for 7/8 inches cannot be used. Therefore the next larger
opening, 1
1
, must be used and the distance corresponding to 1
/
4
Note : . 3.5 inches = 89 mm, and 7.5 inches = 191 mm.
OSHA 1910.217 Table O-10
Distance of Opening from Maximum Width of Opening
Point of Operation Hazard (inches) (inches)
1
1
to 1
/
2
/
2
1
1
1
to 2
/
2
/
2
1
1
2
to 3
/
2
/
2
1
1
3
to 5
/
2
/
2
1
1
5
to 6
/
2
/
2
1
1
6
to 7
/
2
/
2
1
to 12
/
2
1
/
2
1
/
2
1
/
2
to 15
to 17
to 31
1
/
2
1
/
2
1
/
2
1
/
2
7
12
15
17
s
1
opening is 7
/
4
1/4
3/8
1/2
5/8
3/4
7/8
1 1/4
1 1/2
1 7/8
2 1/8
1
(3.5) inches.
/
2
1
(7.5) inches.
/
2
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Refer to Section 1-6 for the following information:
- Using L-shaped curtain
- General note
- Installation near a reflective surface
- Machine shut down mechanism
Note: .. If the light curtain is to be used on machinery that will be standardized throughout North
America and Europe, then all minimum distance formulas in section 1-6 and 1-7 must be
calculated, and the largest separation distance must be used.
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XUSL Safety Light Curtain
2 Description of the XUSL safety light curtain 2-1 Operating principle
XUSL light curtains consist of a transmitter and receiver which face each other. The transmitter emits
coded infrared beams. When the receiver sees these beams it verifies that the signals and codes are
correct. After all beams have been received and verified, the light curtain is ready to be started. The
light curtain can then be started either automatically or by reset button, which closes the OSSD
outputs to allow the machine to operate. If any of the infrared beams are broken, the outputs (OSSD's)
are opened, sending a stop command to the machine.
2-2 Environmental considerations
• Robust housing with enclosure rating IP 65
• Electrical power supply
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The XUSLA light curtain are entirely galvanically isolated (power supply, input, output). Thus
the XUSLA light curtain are not susceptible to interference due to power supply grounding
problems or by currents circulating in the chassis grounds.
• Resistance to spurious light (flashing lights, flashing rotating lights, welding flashes and sparks)
Due to their specially designed safety circuits, the XUSL light curtain have a standard reinforced
function making them insensitive to interference.
• Interference by other safety light curtain
Each curtain (transmitter + receiver pair) has its’ own factory-assigned code. Due to this coding
system, even the considerable influence of another light curtain will not lead to improper
operation. The XUSL light curtain meets the most severe requirements of the most recently
developed European standards concerning Electro-sensitive Protection Equipment (ESPE)
2-3 Defining the protected Height (Hp)
XUSL•T XUSL•R
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Sn = Sensing distance
D
Hm
D
: Detection capacity (minimum object sensitivity)
Hm
: Minimum height to be left clear for the beams
to pass (sensitive zone)
Hp
: Protected height (according to pr EN50100-2)
Sn
: distance between transmitter and receiver where an object with a nominal diameter "D" is always
detected (in normal using conditions)
Hp
D
Te
Last
beam
Operator
zone
First
beam
Possible
obstruction
Danger
zone
Side view Front view
Light curtain
Machine
Hm
Machine
Hp
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