EUCHNER MGB-L0HE-ARA-R-110691 User manual

EN
Operating Instructions
Safety Systems
MGB-L0…-AR.-…
MGB-L0…-AP.-…
from V3.0.0

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
2(translation of the original operating instructions) 2112657-14-03/20
Contents
1. About this document............................................................................................. 4
1.1. Scope............................................................................................................................................4
1.1.1. Notes on older product versions ......................................................................................4
1.2. Target group ..................................................................................................................................4
1.3. Key to symbols...............................................................................................................................4
1.4. Supplementary documents ..............................................................................................................5
2. Correct use .......................................................................................................... 6
2.1. Main differences between MGB-AP and MGB-AR.................................................................................7
3. Description of the safety function .......................................................................... 7
4. Exclusion of liability and warranty ......................................................................... 7
5. General safety precautions ................................................................................... 8
6. Function............................................................................................................... 9
7. System overview................................................................................................. 10
7.1. Interlocking module MGB-L0-… ......................................................................................................10
7.2. Handle module MGB-H-…...............................................................................................................10
7.3. Escape release MGB-E-… (optional)................................................................................................10
7.4. Dimension drawing .......................................................................................................................11
7.5. Lockout mechanism......................................................................................................................12
7.6. Escape release (optional) ..............................................................................................................12
7.6.1. Preparing escape release .............................................................................................12
8. Installation ......................................................................................................... 14
8.1. Mounting lens...............................................................................................................................15
9. Changing actuating direction (here: from right to left).......................................... 17
10. Protection against environmental effects............................................................. 18
11. Electrical connection .......................................................................................... 19
11.1. Notes about .........................................................................................................................20
11.2. Safety in case of faults..................................................................................................................20
11.3. Fuse protection for power supply...................................................................................................20
11.4. Requirements for connection cables...............................................................................................21
11.5. Notes on cable laying....................................................................................................................21
11.6. Changing device conguration (using DIP switches) .........................................................................22
11.6.1. Changing system family (AR/AP switching)......................................................................22
11.7. Notes on operation with control systems ........................................................................................23
11.8. Terminal assignment and contact description..................................................................................24
11.9. Operation as separate device ........................................................................................................25

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2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
11.10. Operation in an AR switch chain .....................................................................................................26
11.11. Information on operation in an AR switch chain................................................................................27
11.11.1. System times ...............................................................................................................27
11.11.2. Wiring an AR switch chain ..............................................................................................27
11.11.3. Number of devices in switch chains................................................................................27
11.11.4. Resetting in switch chains..............................................................................................27
12. Commissioning................................................................................................... 28
12.1. Teach-in operation (only for MGB unicode).......................................................................................28
12.2. Mechanical function test................................................................................................................28
12.3. Electrical function test...................................................................................................................29
13. Technical data .................................................................................................... 30
13.1. Typical system times.....................................................................................................................31
14. System states..................................................................................................... 31
14.1. Key to symbols.............................................................................................................................31
14.2. System status table MGB-AR..........................................................................................................32
14.3. System status table MGB-AP..........................................................................................................33
15. Troubleshooting and assistance........................................................................... 34
15.1. Fault reset....................................................................................................................................34
15.2. Help on troubleshooting in the Internet ...........................................................................................34
15.3. Help on mounting in the Internet.....................................................................................................34
15.4. Application examples ....................................................................................................................34
16. Service .............................................................................................................. 34
17. Inspection and service ........................................................................................ 35
18. Declaration of conformity ................................................................................... 36

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
4(translation of the original operating instructions) 2112657-14-03/20
1. About this document
1.1. Scope
These operating instructions are valid for all MGB-L0…-AR.-… and MGB-L0…-AP.-…. These operating instructions, the docu-
ment “Safety information and maintenance” and any enclosed data sheet form the complete user information for your device.
Series Version System families Product versions
MGB L0 (without guard locking) …-AP… from V3.0.0
…-AR…
1.1.1. Notes on older product versions
Products with lower product versions or without a version number are not described by these operating instructions. Please
contact our support team in this case.
1.2. Target group
Design engineers and installation planners for safety devices on machines, as well as setup and servicing staff possessing
special expertise in handling safety components.
1.3. Key to symbols
Symbol/depiction Meaning
AP
This section applies on operation as MGB-AP
AR
This section applies on operation as MGB-AR
DIP
OFF
ON
In this section attention must be paid to the DIP switch settings
Printed document
Internet
www Document is available for download at www.euchner.com
Document on CD
DANGER
WARNING
CAUTION
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution Slight injuries possible
NOTICE
Important!
Notice about possible device damage
Important information
Tip Useful information

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2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title
(document number) Contents
Safety information and
maintenance for safety
system MGB-AR/MGB-AP
from V3.0.0
(2123151)
Basic information for safe setup and service
Operating Instructions
(2112657) (this document)
Possibly enclosed data
sheet Item-specic information about deviations or additions
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the
device. The documents can be downloaded from www.euchner.com. For this purpose enter the doc.
no. in the search box.

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
6(translation of the original operating instructions) 2112657-14-03/20
2. Correct use
The system comprises at least one interlocking module MGB-L0-... and one handle module MGB-H...
The safety system MGB is an interlocking device without guard locking (type4). Devices with unicode evaluation possess a
high coding level, devices with multicode evaluation possess a low coding level.
The interlocking module can be congured with the aid of DIP switches. Depending on the setting, the interlocking module
behaves like an AP or AR device (see chapter 2.1. Main differences between MGB-AP and MGB-AR on page 7). More
detailed information about the possible settings is available in the chapter 11.6. Changing device conguration (using DIP
switches) on page 22.
In combination with a movable guard and the machine control, this safety component prevents dangerous machine functions
from occurring while the guard is open. A stop command is triggered if the guard is opened during the dangerous machine
function.
This means:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is closed.
ÌOpening the guard triggers a stop command.
ÌClosing a guard must not cause automatic starting of a dangerous machine function. A separate start command must
be issued. For exceptions, refer to ENISO12100 or relevant C-standards.
Before the device is used, a risk assessment must be performed on the machine, e.g. in accordance with the following
standards:
ÌENISO13849-1
ÌENISO12100
ÌIEC62061
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1
ÌENISO14119
ÌEN60204-1
The safety system MGB can be combined only with the intended modules in the MGB system family.
On the modication of system components, EUCHNER provides no warranty for function.
AR
Interlocking modules with the conguration MGB-AR can be integrated into an AR switch chain.
Connection of several devices in an AR switch chain is permitted only using devices intended for series connection
in an AR switch chain. Check the operating instructions for the related device.
Important!
ÌThe user is responsible for the proper 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.
ÌCorrect use requires observing the permissible operating parameters (see chapter 13. Technical
data on page 30).
ÌIf a data sheet is included with the product, the information on the data sheet applies.

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2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
Table 1: Possible combinations for MGB components
Evaluation unit
Handle module
MGB-H-...
from V2.0.0
MGB…AR/AP
from V3.0.0
Key to symbols Combination possible
2.1. Main differences between MGB-AP and MGB-AR
System family Symbol Use
MGB-AP
AP
Optimized for operation in safe control systems.
If series connection is not necessary, the number of terminals required can be reduced using this system family.
MGB-AR
AR
Linking of several guards on one shutdown path. As a consequence several safety doors can be very simply polled using one evalua-
tion unit or two control system inputs.
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of the guard position
(interlocking device according to ENISO14119)
ÌSafety function: the safety outputs are switched off when the guard is open (see chapter 6. Function on page 9).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 13. Technical data on page 30).
The following applies to devices with emergency stop:
Emergency stop
(emergency stop device according to ENISO13850)
ÌSafety function: emergency stop function
ÌSafety characteristics: B10D value (see chapter 13. Technical data on page 30)
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety instructions are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
8(translation of the original operating instructions) 2112657-14-03/20
5. General safety precautions
Safety switches fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the guard particularly
Ìafter any setup work
Ìafter the replacement of an MGB component
Ìafter an extended period without use
Ìafter every fault
Ìafter any change to the DIP switch settings
Independent of these checks, the safe function of the guard should be checked at suitable intervals as part of the mainte-
nance schedule.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components fulll
a personnel protection function.
ÌSafety components must not be bypassed, turned away, removed or otherwise rendered ineffec-
tive. On this topic pay attention in particular to the measures for reducing the possibility of bypass-
ing according to ENISO14119:2013, section 7.
ÌThe switching operation is allowed to be triggered only by the intended handle module MGB-H…
that is positively fastened to the guard.
ÌPrevent bypassing by means of replacement actuators (only for multicode evaluation). For this
purpose, restrict access to actuators and to keys for releases, for example.
ÌMounting, electrical connection and setup only by authorized personnel possessing the following
knowledge:
- specialist knowledge in handling safety components
- knowledge about the applicable EMC regulations
- knowledge about the applicable regulations on occupational safety and accident prevention.
Important!
Prior to use, read the operating instructions and keep these in a safe place. Ensure the operating
instructions are always available during mounting, setup and servicing. EUCHNER cannot provide any
warranty in relation to the readability of the CD for the storage period required. For this reason you
should archive a printed copy of the operating instructions. You can download the operating instruc-
tions from www.euchner.com.

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2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
6. Function
Together with a handle module, the interlocking module makes it possible to monitor the position of moving guards. The
combination also serves as a mechanical door stop at the same time.
DIP
OFF
ON The following switch-on condition applies to the safety outputs FO1A and FO1B (also see chapters 14.2. System
status table MGB-AR on page 32 and 14.3. System status table MGB-AP on page 33):
Conguration System family MGB-AR MGB-AP
Condition
No fault in the device TRUE TRUE
Guard closed TRUE TRUE
Bolt tongue inserted in interlocking module TRUE TRUE
In case of series connection:
Signal available from the upstream switch on the safety inputs FI1A and
FI1B
In case of separate operation:
DC24V present at the safety inputs FI1A and FI1B
TRUE Not relevant
FO1A and FO1B are ON
The interlocking module detects the position of the guard and the position of the bolt tongue.
The bolt tongue in the handle module is moved into and out of the interlocking module by actuating the door handle.

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
10 (translation of the original operating instructions) 2112657-14-03/20
7. System overview
7.1. Interlocking module MGB-L0-…
2
3
4
1
76 5
Key:
1Cover for auxiliary release
2LED indicator
3DIP switches
4Terminals X2 -X5
5Depending on version:
Cable entry M20x1.5 or plug connector
6Internal reset
7Auxiliary marking for maximum permitted mounting distance
Notice:
Depending on the version, additional controls and indicators may be integrated into
the cover and a mounting plate can be included.
See enclosed data sheet.
Figure 1: Interlocking module MGB-L.--…
7.2. Handle module MGB-H-…
1
2
5
4
2
3
4
Key:
1Door handle
2Fold-out lockout mechanism
(optional: second, automatically extending lockout mechanism)
3Locking pin for handle adjustment
4Locking screws T10 for housing cover
5Bolt tongue
Notice:
Depending on the version, a mounting plate can be included.
See enclosed data sheet.
Figure 2: Handle module MGB-H-…
7.3. Escape release MGB-E-… (optional)
1 2 3 4
Key:
1Door handle
2Cover
3Actuation axis 8 x 8 mm
(different lengths available)
4Protective sleeve
Notice:
Depending on the version, a mounting plate can be included.
See enclosed data sheet.
Figure 3: Escape release MGB-E-…

11
2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
7.4. Dimension drawing
47,560
19
min. 6
37,5
S1 S2
4S 3S
A
max. 10
30
21
114
40
AUF
OPEN
CLOSED
ZU
40
130
15
111
40
4
155,3
7,5
6 ,6
86,5
15,4
15
73,5
6 ,3
6 ,2
8 9 ,4
24
5
10
4 6
10
8 9 ,4
7 7 ,5
9 2 ,5
16,5
14,5
4011,5
107
55,5
(min. 10)
8
40
61,45
47,4
51
4
156 130 21,9
290
114 108,6
22,2
84,5
Drilling pattern
Interlocking module Handle module Escape release
Detail A
Dimensions with plug connector RC18 and automatically
extending lockout mechanism (optional)
Padlock
Lockout mechanism
Figure 4: Dimension drawing MGB tted, without optional mounting plates

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
12 (translation of the original operating instructions) 2112657-14-03/20
7.5. Lockout mechanism
If the lockout mechanism is pivoted out/extended, the bolt tongue cannot be extended. The lockout mechanism can be
secured with padlocks (see Figure 5).
¨To pivot out, press the grooved part (possible only with bolt tongue retracted).
12Key:
1Padlock ∅min. 2mm, ∅max. 10 mm
Notice:
You can t a maximum of 3 locks Ø8mm.
2Automatically extending, second lockout mechanism
Padlock ∅min. 6mm, ∅max. 10 mm
Figure 5: Lockout mechanism secured with padlock
7.6. Escape release (optional)
The escape release is used to open a guard from the inside without tools.
Important!
ÌIt must be possible to actuate the escape release manually from inside the protected area without
tools.
ÌIt must not be possible to reach the escape release from the outside.
ÌThe actuator must not be under tensile stress during manual release.
ÌThe escape release meets the requirements of Category B according to ENISO13849-1:2008.
ÌFit escape release such that operation, inspection and maintenance are possible.
ÌThe actuation axis for the escape release must be inserted min. 10 mm into the handle module. Note the information on
the different prole widths in the next chapter.
ÌAlign escape release axis at right angles to the handle module. See Figure 4 and Figure 7.
7.6.1. Preparing escape release
(also see Figure 6: Preparing escape release on page 13)
Prole width Length required for actuation
axis
Which EUCHNER parts are required? Necessary work steps
Without plates With mounting
plates
(4 mm each)
D D+13 D+21
30 mm 43 mm 51 mm Standard escape release
with 110 mm axis
(order no. 100465)
Shorten to required length
40 mm 53 mm 61 mm Standard escape release
with 110 mm axis
(order no. 100465)
If necessary,
extended actuation axis (order no. 106761)
Without mounting plates:
None
With mounting plates:
Use long actuation axis and protective sleeve and short-
en to required length
45 mm 58 mm 66 mm Standard escape release
with 110 mm axis
(order no. 100465)
and
extended actuation axis (order no. 106761)
Use long actuation axis and protective sleeve and short-
en to required length
50 mm 63 mm 71 mm Standard escape release
with 110 mm axis
(order no. 100465)
and
extended actuation axis (order no. 106761)
Use long actuation axis and protective sleeve and short-
en to required length

13
2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
55,5
M4
250
182
D -1
D + 10,25
±1,25
D
(11,5) 55,5
Example without mounting plates:
Escape release
Handle module
Actuation axis Protective sleeve
(+4 mm per mounting plate)
(+4 mm per mounting plate)
1Insert actuation axis. The snap ring Amust be in contact with the escape release B.
2Fit door handle.
3Tighten xing screw to 2Nm and press in cap.
4Fit protective sleeve.
1
3
2
4
A
B
Figure 6: Preparing escape release

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
14 (translation of the original operating instructions) 2112657-14-03/20
8. Installation
WARNING
Mounting must be performed only by authorized personnel.
With two-leaf hinged doors, one of the two door leaves must also be latched mechanically.
Use a rod latch (Item) or a double-door lock (Bosch Rexroth) for this purpose, for example.
Important!
ÌIf installed ush, the switching distance changes as a function of the installation depth and the
guard material.
Interlocking
module Handle module
Handle module
Interlocking
module
Surface mounting
Flush mounting
Operating distance
Operating distance
Tip!
ÌYou will nd an animation on the mounting process at www.euchner.com.
ÌThe color and labeling of pushbuttons and indicators can be modied.
For mounting steps , see Figure 7 and Figure 8 to Figure 13.
Install system so that inspection and maintenance are possible.

15
2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
8.1. Mounting lens
1 2
23
90°
Click!
1
Installation
Removal
Lens
Figure 7: Installation example for door hinged on the right (general view)

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
16 (translation of the original operating instructions) 2112657-14-03/20
2x M6
4x M6
1 Nm (6x)
0,5 Nm
Cutout for escape release
Tightening torque 6 Nm
Recommended xing material:
For mounting on the mounting plate:
DIN912-M6X25-8.8ZNCYLINDER HEAD SCREW

17
2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
9. Changing actuating direction (here: from right to left)
Important!
It is possible to make this change only when the bolt tongue is not extended and an escape release
is not yet mounted.
As supplied, the handle module is set either for doors hinged on the right or for doors hinged on the left.
Based on the example of a handle module for doors hinged on the right this means:
ÌThe guard opens by pressing down the door handle.
ÌThe system is mounted the other way around for doors hinged on the left. In other words, the guard opens by pressing
up the door handle (see Figure 8). For this reason the actuating direction of the door handle must be changed (see Fig-
ure 8 to Figure 13).
(Similarly on handle modules for doors hinged on the left)
CLOSED
OPEN 1
3
2
1Press door handle up.
2Unscrew locking screws.
3Push cover aside.
Figure 8: Changing actuating direction, step 1Figure 9: Changing actuating direction, steps 2and 3
5
4
4Lift the locking pin on the door handle using a screwdriver and hold
it in this position.
5Turn door handle to the right.
7
8
6b
a
3 mm
6Only if using an escape release: using the hexagon head screw,
turn the joint counterclockwise from position (a) to position (b).
7Close cover.
8Screw in locking screws and tighten to 0.8 Nm.
Figure 10: Changing actuating direction, steps 4and 5Figure 11: Changing actuating direction, steps 6to 8

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
18 (translation of the original operating instructions) 2112657-14-03/20
3 mm
9
10
11
OPEN
CLOSED
9Remove cover and undo hexagon socket screw.
AT Reposition the door handle by 90° in clockwise direction and fasten
it again.
A Tighten hexagon socket screw to 3 Nm A State after repositioning
Figure 12: Changing actuating direction, steps 9and A Figure 13: Changing actuating direction, nal state
10. Protection against environmental effects
Lasting and correct safety function requires that the system must be protected against foreign bodies such as swarf, sand,
blasting shot, etc., which can become lodged in the interlocking and handle modules. For this purpose a suitable installation
position should be selected.
Cover device during painting work!

19
2112657-14-03/20 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
EN
11. Electrical connection
WARNING
If there is a mistake, loss of the safety function due to incorrect connection.
ÌTo ensure safety, both safety outputs (FO1A and FO1B) must always be evaluated.
ÌThe monitoring outputs must not be used as safety outputs.
ÌLay the connection cables with protection to prevent the risk of short circuits.
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
ÌThe inputs on an evaluation unit connected must be positive-switching, as the two outputs on the
safety switch deliver a level of +24V in the switched-on state.
ÌAll the electrical connections must either be isolated from the mains supply by a safety trans-
former according EN IEC 61558-2-6 with limited output voltage in the event of a fault, or by other
equivalent isolation measures.
ÌAll electrical outputs must have an adequate protective circuit for inductive loads. The outputs
must be protected with a free-wheeling diode for this purpose. RC interference suppression units
must not be used.
ÌPower devices which are a powerful source of interference must be installed in a separate location
away from the input and output circuits for signal processing. The cable routing for safety circuits
should be as far away as possible from the cables of the power circuits.
ÌTo prevent EMC problems, it is imperative you follow the chapter 11.5. Notes on cable laying on
page 21. Follow EMC notes on devices in the immediate vicinity of the MGB system and their
cables.
ÌIn order to avoid EMC interference, the physical environmental and operating conditions at the
installation site of the device must comply with the requirements according to the standard
DINEN60204-1:2006, section 4.4.2/EMC.
Important!
ÌIf the device does not appear to function when the operating voltage is applied (e.g. green Power
LED does not illuminate), the safety switch must be returned to the manufacturer.
ÌTo ensure the stated degree of protection is achieved, the cover screws must be tightened to a
tightening torque of 1 Nm.
ÌTighten screw for the cover for the auxiliary release to 0.5 Nm.

Operating Instructions Safety Systems
MGB-L0…-AR.-… and MGB-L0…-AP.-…
20 (translation of the original operating instructions) 2112657-14-03/20
11.1. Notes about
Important!
ÌFor use and operation as per the requirements 1), a power supply with the feature “for use in
class 2 circuits” must be used. The same requirement applies to the safety outputs.
Alternative solutions must comply with the following requirements:
a) Electrically isolated power supply unit with a max. open-circuit voltage of 30V/DC and a limited
current of max. 8A.
b) Electrically isolated power supply unit in combination with fuse as per UL248. This fuse should be
designed for max. 3.3A and should be integrated into the 30VDC voltage section.
ÌThe mounting of conduits directly on the MGB is not allowed. Cables are allowed to be connected
only via suitable cable glands. For this purpose use EUCHNER cable gland of type EKPM20/06U.
Equivalent cable glands can be used if they are UL-listed (QCRV) and are suitable for the related
cable diameter (22 AWG – 17 AWG).
1) Note on the scope of the UL approval: Only for applications as per NFPA 79 (Industrial Machinery).
The devices have been tested as per the requirements of UL508 (protection against electric shock and re).
11.2. Safety in case of faults
ÌThe operating voltage UB is reverse polarity protected.
ÌThe safety outputs FO1A/FO1B are short circuit-proof.
ÌA short circuit between FI1A and FI1B or FO1A and FO1B is detected by the device.
ÌA short circuit in the cable can be excluded by laying the cable with protection.
11.3. Fuse protection for power supply
The power supply must be provided with fuse protection depending on the number of devices and current required for the
outputs. The following rules apply:
Max. current consumption of an individual device Imax
Imax = IUB + IUA + IFO1A+FO1B
IUB = Device operating current (80 mA)
IUA = Load current of monitoring outputs OD, OT and OI (3 x max. 50 mA) + switches
IFO1A+FO1B = Load current of safety outputs FO1A + FO1B (2 x max. 50 mA)
AR
Max. current consumption of a switch chain ΣImax
ΣImax = IFO1A+FO1B + n x (IUB + IUA)
n = Number of connected devices
Current assignment to the fuses
Current Fuse circuit F1 Fuse circuit F2
IUB 80 mA
IFO1A+FO1B (2 x max. 200 mA)
IUA
IOD,OT,OI = (3 x max. 50 mA)
Iswitches = max. 100 mA
(per switch)
Iindicators = max. 5 mA
(per indicator)