Operating instructions
Solenoid interlock
Operating instructions. . . . . . . . . . . .pages 1 to 12
EN
Original
MZM 100
MZM 100 B
8 Disassembly and disposal
8.1 Disassembly...........................................9
8.2 Disposal ..............................................9
9 Appendix
9.1 Wiring examples ......................................10
9.2 Wiring conguration and connector accessories ..............11
10 EU Declaration of conformity
1. About this document
1.1 Function
This operating instructions manual provides all the information you
need for the mounting, set-up and commissioning to ensure the safe
operation and disassembly of the safety switchgear. The operating
instructions must be available in a legible condition and a complete
version in the vicinity of the device.
1.2 Target group: authorised qualified personnel
All operations described in this operating instructions manual must
be carried out by trained specialist personnel, authorised by the plant
operator only.
Content
1 About this document
1.1 Function ..............................................1
1.2 Target group: authorised qualied personnel ..................1
1.3 Explanation of the symbols used ...........................1
1.4 Appropriate use ........................................1
1.5 General safety instructions ...............................1
1.6 Warning about misuse ...................................2
1.7 Exclusion of liability .....................................2
2 Product description
2.1 Ordering code .........................................2
2.2 Special versions........................................2
2.3 Comprehensive quality insurance to 2006/42/EC ..............2
2.4 Purpose ..............................................2
2.5 Technical data .........................................3
2.6 Safety classication .....................................3
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................4
4 Electrical connection
4.1 General information for electrical connection..................4
5 Operating principles and latching force adjustment
5.1 Mode of operation of the safety outputs......................5
5.2 Description of the latching force adjustment ..................5
Please make sure that you have read and understood these operating
instructions and that you know all applicable legislations regarding
occupational safety and accident prevention prior to installation and
putting the component into operation.
The machine builder must carefully select the harmonised standards
to be complied with as well as other technical specifications for the
selection, mounting and integration of the components.
1.3 Explanation of the symbols used
Information, hint, note:
This symbol is used for identifying useful additional information.
Caution: Failure to comply with this warning notice could
lead to failures or malfunctions.
Warning: Failure to comply with this warning notice could
lead to physical injury and/or damage to the machine.
1.4 Appropriate use
The products described in these operating instructions are developed
to execute safety-related functions as part of an entire plant or machine.
It is the responsibility of the manufacturer of a machine or plant to
ensure the correct functionality of the entire machine or plant.
The safety switchgear must be exclusively used in accordance with
the versions listed below or for the applications authorised by the
manufacturer. Detailed information regarding the range of applications
can be found in the chapter "Product description".
1.5 General safety instructions
The user must observe the safety instructions in this operating
instructions manual, labelled with the caution or warning symbol above,
the country-specific installation standards as well as all prevailing safety
regulations and accident prevention rules.
x.000 / 08.2018 / v.A. - 103013109-EN / H / 2018-08-15 / AE-Nr. 9800
6 Diagnostic functions
6.1 Diagnostic LED's .......................................6
6.2 Solenoid interlock with conventional diagnostic output ..........6
6.3 Solenoid interlock with serial diagnostic function...............8
7 Set-up and maintenance
7.1 Functional testing.......................................9
7.2 Maintenance ..........................................9
Further technical information can be found in the Schmersal
catalogues or in the online catalogue on the Internet:
www.schmersal.net.
The information contained in this operating instructions manual is
provided without liability and is subject to technical modifications.
EN
1
1
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
1.6 Warning about misuse
In case of improper use or manipulation of the safety
switchgear, personal hazards or damages to machinery
or plant components cannot be excluded. The relevant
requirements of the standard ISO 14119 must be observed.
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, conversions and modifications to the device are strictly
forbidden; the manufacturer shall accept no liability for damages
resulting from such invasive work, arbitrary repairs, conversions and/or
modifications to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
2.4 Purpose
The safety switchgears are classified according to ISO 14119
as type 4 interlocking devices.
The MZM 100 is designed for application in safety circuits and is used
for monitoring the position of movable separating safety guards. A door
detection sensor monitors the closed condition of the safety guard.
The optional variable latching force is activated by the detection of the
actuator when the safety guard is closed. The latching force exercised
by the permanent magnet keeps the safety guard closed, also in deenergised condition (approx. 15 N).
The different variants can be used as safety switch with interlocking
function either as solenoid interlock.
If the risk analysis indicates the use of a monitored interlock
then a variant with the monitored interlock is to be used,
labelled with the symbol. The actuator monitoring variant
(B) is a safety switch with an interlock function for process
protection.
The safety function of MZM 100 variant "Solenoid interlock monitored"
consists of safely monitoring a magnetic interlocking force for a safety
guard, safely switching off the safety outputs when the magnetic
force drops below a defined magnetic force and maintaining the safe
switched off condition of the safety outputs for as long as the safety
guard is open or unlocked.
MZM 100 ➀ ➁No. Option Description
Solenoid interlock monitored
➀
B Actuator monitored
ST Connector plug M23, (8+1)-pole
➁
ST2 Connector plug M12, 8-pole
1P2P 1 p-type diagnostic output and
➂
1P2PW similar to -1P2P, combined diagnostic signal
1P2PW2 similar to -1P2P, combined diagnostic signal
SD2P serial diagnostic output and
➃
R electrical latching force, typically 30 N
RE adjustable latching force, typically 30 … 100 N
M permanent magnet, typically 15 N
➄
MZM 100-B1.1 Actuator
-A
➂➃➄
2 p-type safety outputs
(only in connection with "Solenoid interlock
monitored")
guard door closed and solenoid interlock locked
(only in connection with "Solenoid interlock
monitored")
guard door closed and can be locked
(only in connection with "Actuator monitored")
2 p-type safety outputs
without latching
(only in connection with "Solenoid interlock
monitored")
The safety function of MZM 100 B variant "Actuator monitored" consists
of safely switching off the safety outputs when the safety guard is
opened and maintaining the safe switched off condition of the safety
outputs for as long as the safety guard is open.
Interlocks with power to lock principle may only be used in
special cases after a thorough evaluation of the accident risk,
since the safety guard can be opened immediately on failure
of the power supply or upon activation of the main switch.
Series wiring
Series-wiring can be set up. The risk time is not altered by wiring in
series. The number of components is only limited by the external cable
protection according to the technical data and the line loss. Up to 31
components can be wired in series.
In devices with the serial diagnostics function (ordering suffix -SD), the
serial diagnostics connections are wired in series and connected to a
SD Gateway for evaluation purposes.
Wiring examples for series-wiring, refer to appendix
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level. If multiple safety sensors are involved in the
same safety function, the PFH values of the individual
components must be added.
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Comprehensive quality insurance to 2006/42/EC
Schmersal is a certified company to appendix X of the Machinery
Directive. As a result, Schmersal is entitled to autonomously conduct
the conformity assessment procedure for the products listed in
Appendix IV of the MD without involving a notified body. The prototype
test certificates are available upon request or can be downloaded from
the Internet at www.schmersal.com.
2
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
EN
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
2.5 Technical data
General data:
Standards: IEC 60947-5-1, IEC 60947-5-3, ISO 14119,
ISO 13849-1, IEC 61508
Material of the housings: Plastic, glass-fibre reinforced thermoplastic,
self-extinguishing
Working principle: inductive
Coding level according to ISO 14119: low
Response time: ≤ 150 ms
Duration of risk: < 150 ms
Time to readiness: < 4000 ms
Actuator: MZM 100-B1.1
Series-wiring: Unlimited number of components,
please observe external cable protection,
max. 31 components in case of serial diagnostics
Length of the sensor chain: max. 200 m;
- Note: Cable length and cable section alter the voltage drop
depending on the output current
Mechanical data:
Execution of the electrical connection:
- ST: M23 connector, (8+1) poles,
- ST2: M12 connector, 8 poles
Tightening torque of the fixing screws: 8 Nm
Electrically adjustable latching force (RE), typically: 30 N … 100 N
Permanent magnet (M), typically: 15 N
Holding force F
Holding force F guaranteed: 500 N
Mechanical life: ≥ 1,000,000 operations
Switching distances to IEC 60947-5-3:
Assured switching distance sao: 0 mm
Assured switch-off distance sar: 1 mm
Ambient conditions:
Ambient temperature: −25 °C … +55 °C
Storage and transport temperature: −25 °C … +85 °C
Relative humidity: 30% … 95%,
Protection class: IP65 / IP67
Protection class: III
Resistance to shock: 30 g / 11 ms
Switching frequency: 1 Hz
Resistance to vibration: 10 ... 150 Hz, amplitude 0.35 mm / 5 g
Insulation values to IEC 60664-1:
- Rated insulation voltage Ui: 32 VDC
- Rated impulse withstand voltage U
- Over-voltage category: III
- Degree of pollution: 3
Switching frequency: 1 Hz
Electrical data:
Operating voltage UB: 24 VDC −15% / +10%
Operating current device: max. 0.6 A
- Note: plus current through the safety outputs
Magnet switch-on time ED: 100 %
Rated operating voltage Ue: 24 VDC
Rated operating current Ie: 1 A
Required rated short-circuit current: 100 A
Device fuse rating: 2 A
Electrical data – Safety inputs:
Safety inputs: X1 and X2
Switching thresholds: − 3 V … 5 V (Low),
Accepted test pulse duration on input signal: ≤ 1.0 ms
- With test pulse interval of: ≥ 100 ms
Classification: ZVEI CB24I
Countersink: C1 Source: C1 C2 C3
typically: 750 N
max
(for safety guards ≤ 5 kg and
actuating speed ≤ 0.5 m/s)
no condensation, no icing
: 0.8 kV
imp
(stabilised PELV units to IEC 60204-1)
15 V … 30 V (High)
Utilisation category: DC-13: Ue/Ie: 24 VDC / 0.25 A
Rated operating current Ie: each max. 0.25 A
Leakage current Ir: ≤ 0.5 mA
Voltage drop Ud: < 1 V
Test pulse duration: ≤ 1.0 ms
Test pulse interval: 1000 ms
Classification: ZVEI CB24I
Source: C1 Countersink: C1
Electrical data – Diagnostic output:
Diagnostic output: OUT
Switching element: p-type, short-circuit proof
Utilisation category: DC-13: Ue/Ie: 24 VDC / 0.05 A
Wiring capacitance for serial diagnostics: max. 50 nF
Electrical data – Magnet control:
Magnet control: IN
Switching thresholds: − 3 V … 5 V (Low),
15 V … 30 V (High)
Current consumption per input: typical10 mA / 24 V, dynamic 20 mA
Accepted test pulse duration on input signal: ≤ 5.0 ms
- With test pulse interval of: ≥ 40 ms
Classification: ZVEI CB24I
Countersink: C0 Source: C1 C2 C3
LED status display:
green LED: Supply voltage
yellow LED: Device condition
red LED: Internal device error
Use isolated power supply only. If the cable and connector
assembly is not listed for Type 12 or higher, then the device
shall be used in a Type 1 environment only.
2.6 Safety classification
Standards: ISO 13849-1, IEC 61508
PL: e
Control Category: 4
PFH: 3.54 x 10
SIL: suitable for SIL 3 applications
Service life: 20 years
-9
/ h
3. Mounting
3.1 General mounting instructions
Please observe the relevant requirements of the standards ISO 12100, ISO 14119 and ISO 14120.
The solenoid interlock must be used as an end stop.
Any mounting position. The system must only be operated with an
angle of ≤ 2° between the solenoid interlock and the actuator.
For fitting the solenoid interlock and the actuator, two mounting
holes for M6 screws with washers (washers included in delivery) are
provided.
After fitting, the mounting holes can be sealed by means of the supplied
plugs. The plugs serve as a means of sealing the assembly openings
and are also suitable to prevent against tampering with the screw
connection.
Minimum distance between two devices: 100 mm
Electrical data – Safety outputs:
Safety outputs: Y1 and Y2
Switching elements: normally open function, 2 channel,
OSSD, p-type
Fuse rating: short-circuit proof
EN
The actuator must be permanently fitted to the safety guards
and protected against displacement by suitable measures
(e.g. tamperproof screws, gluing, drilling of the screw heads).
3
Operating instructions
±
1
40 24
20
5
3
100
160
9
78
20
6.2
8
Solenoid interlock
MZM 100
MZM 100 B
At an ambient temperature of ≥ 50 °C, the safety
component must be fitted so that it is protected against
unintentional contact with persons.
The safety component must be operated in the operating
direction of the latching force (refer to image).
Axial misalignment and operating direction of the latching force
3mm
± 5mm
3.2 Dimensions
All measurements in mm.
Solenoid interlock
ST
13
40
5
13
ST2
40
40 1
5
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by
authorised personnel in a de-energised condition.
The voltage inputs A1, X1, X2 and IN must have a protection against
permanent overvoltage. supply units according to IEC 60204-1 is
recommended.
The safety outputs can be integrated into the safety circuit of the control
system. For applications of PL e / control category 4 to ISO 13849-1,
the safety outputs of the safety switchgear or the chain of components
must be connected to a safety-monitoring module of the same category.
Requirements for the connected safety-monitoring module:
• Dual-channel safety input, suitable for 2 p-type semi-conductor
outputs
• Digital inputs to EN 61131-2, Table "Standard operating ranges for
digital inputs (current sinking)"
• Test function
The safety-monitoring module must tolerate internal functional tests
of the solenoid interlock with cyclic switch-off of the safety outputs for
max. 2 ms (typically < 1 ms). The switch-off stage of the test cycle is
temporarily reduced by an active ohmic discharge of the cable.
If the safety sensor is connected to electronic safetymonitoring modules, we recommend that you set a
discrepancy time of min. 100 ms. The safety inputs of the
safety-monitoring module must be able to blank a test impulse
of approx. 1 ms. The safety-monitoring module does not need
to have a cross-wire short monitoring function, if necessary,
the cross-wire short monitoring function must be disabled.
68
92
M
162.5
6.2
10.6
6.3
Actuator
Key
M Permanent magnet
11.2
M23
15.6
Information for the selection of suitable safety-monitoring
68
92
M
modules can be found in the Schmersal catalogues or in the
online catalogue on the Internet: www.schmersal.net.
165.511.8
6.2
10.6
M12
11.2
15.6
If the solenoid interlock is wired to relays or to non-safety relevant
control components, a new risk analysis must be carried out.
Cable design in case of serial diagnostics
On wiring SD devices, pay attention to the voltage drop on
the cables and the current carrying capacity of the individual
components.
The wiring capacity of the connecting cable of the solenoid interlock
must not exceed 50 nF. Depending on the strand structure, normal
unshielded 30 m long control cables LIYY 0.25 mm² to 1.5 mm² have a
wiring capacitance of approx. 3 … 7 nF.
Accessories for the series-wiring
For convenient wiring and series-wiring of SD components,
the SD junction boxes PFB-SD-4M12-SD (variant for the
field) and PDM-SD-4CC-SD (variant for control cabinet on
carrier rail) are available along with additional comprehensive
accessories. Detailed information available on the internet at
www.schmersal.net.
4
EN
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
5. Operating principles and latching force adjustment
5.1 Mode of operation of the safety outputs
- of MZM 100 variant "Solenoid interlock monitored"
The safety outputs are enabled, when the following conditions are met:
• the actuator has been detected and
• the interlock is locked, the magnetic force is > 500 N
The unlocking of the solenoid interlock causes the safety outputs to be
disabled within the risk time. As long as the actuator is present on the
solenoid interlock, the unlocked solenoid interlock can be locked again.
In that case, the safety outputs are re-enabled.
The latching force F is permanently measured and checked. In this way,
soiling of the solenoid interlock can be detected. If the latching force
drops below 500 N, the release signal for the safety outputs Y1 / Y2 is
not given.
- of MZM 100 B variant "Actuator monitored"
The safety outputs are enabled, when the following conditions are met:
• the actuator has been detected, the latching force is active and
• locking with magnetic force > 500 N possible
Due to the permanent monitoring of the closed magnetic circuit, the
safety outputs Y1/Y2 are only enabled during the latching, when the
magnetic circuit is properly closed and the latching force can also be
obtained when activated. If the metal surfaces are soiled or damaged,
the enabling signal is not transmitted.
The unlocking of the MZM 100 B does not lead to a switch-off.
Adjustment of the latching force
1.) Open the safety guard and isolate the MZM 100 from the voltage
supply. Either switch off the voltage supply or pull out the connector.
2.) Put the adjustment target with the active side on the identification
plate of the MZM 100.
3.) Switch the voltage supply of the MZM 100 back on and wait at least
10 seconds before removing the adjustment target. The component
searches for the adjustment target. When the adjustment mode is
active, the safety outputs remain disabled.
4.) Remove the adjustment target again from the component.
The yellow LED of the MZM 100 will repeatedly flash briefly to
show the currently set latching force level (e.g. 4 flashes = 4th
latching force level approx. 60 N).
5.) Put the adjustment target approx. 1 second back on the solenoid
interlock with the safety guard open to gradually increase the latching
force by steps of approx. 10 N each. The number of flashes will
increase accordingly.
The modified latching force can be checked directly on the safety
guard. If necessary, the latching force can be increased by another
step. When latching force level 8 is reached, level 1 will be activated
when the adjustment target is placed back on the component.
6.) Switch off the voltage supply of the MZM 100 once more to
permanently save the chosen latching force.
When the component is switched off, the adjustment mode is quit.
After the voltage supply is switched back on, the MZM 100 is ready for
operation.
Violent separation of solenoid interlock and actuator
(only in connection with "Solenoid interlock monitored")
The solenoid interlock has a latching force F of 500 N.
When the actuator and the interlock are separated in an
unauthorized and violent way, the safety guard is opened
and the enabling paths are switched off within 150 ms.
This is signalled through the yellow and red LED blinking
alternatively. To bring the system back in operational
condition, the safety guard needs to be closed first and the
solenoid control must be switched off and back on; the yellow
and red LED now are blinking simultaneously. With the safety
guard closed, an anti-tampering period of 10 minutes must
be waited until the LEDs go out. Now, the system is back
operational after the soilenoid control has been switched off
and back on. (The actuator nor the solenoid interlock are
damaged!)
5.2 Description of the latching force adjustment
The latching force of the MZM 100 with ordering suffix -RE can be set in
8 steps of approx. 10 N each within a range of approx. 30 N to approx.
100 N. To this end, the adjustment target MZM 100 TARGET is used
directly on the fitted MZM 100.
Latching force indication
If the voltage supply of the MZM 100 B is switched on when the
safety guard is open, the yellow LED will show the set latching force for
10 seconds by means of repeated brief flashes (e.g. 4 × flashes = 4th
latching force level approx. 60 N).
Description of the latching force adjustment for the MZM 100-...-SD
with serial diagnostic function
The latching force can be adjusted through the latching force bits 1-3
of the request byte in 8 steps within a range of 30 … 100 N (45 ... 115 N
with permanent magnet).
Latching force bit Latching force RE Latching force REM
3 2 1
0 0 0 approx. 30 N approx. 45 N
0 0 1 approx. 40 N approx. 55 N
0 1 0 approx. 50 N approx. 65 N
0 1 1 approx. 60 N approx. 75 N
1 0 0 approx. 70 N approx. 85 N
1 0 1 approx. 80 N approx. 95 N
1 1 0 approx. 90 N approx. 105 N
1 1 1 approx. 100 N approx. 115 N
The actual latching forces may deviate from the specified
values owing to the different influences (e.g. angled position
of actuator, contamination or damage to metal surface, etc.).
EN
When the guard system is opened for the first time from the
locked status, higher latching forces may be experienced on
account of residual magnetism.
5
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
6. Diagnostic functions
6.1 Diagnostic LED's
The MZM 100 signals the operational state as well as errors through
three coloured LED’s installed on the front side of the device.
green Supply voltage on
yellow Operating condition
red Fault (refer to table 2: Flash codes of the red diagnostic LED)
6.2 Solenoid interlock with conventional diagnostic output
The short-circuit proof diagnostic output OUT can be used for central
visualisation or control functions, e.g. in a PLC.
The diagnostic output is not a safety-related output!
Depending on the variant used, specific diagnostic signals are emitted
(refer to table 1).
Error
Errors, which no longer guarantee the function of the MZM 100 solenoid
interlock (internal error)s cause the safety outputs to be disabled
within the risk time. Any error that does not immediately affect the
safe functionality of the MZM 100 solenoid interlock (e.g. the ambient
temperature too high, interference potential at a safety output,
cross-wire short) will lead to a delayed shut-down (refer to table 2).
After the rectification of the error, the error message is reset by opening
the corresponding safety guard.
Error warning
A fault has occurred, which causes the safety outputs to be disabled
after 30 minutes. The safety outputs initially remain enabled.
This enables the shutdown of the process in a controlled manner.
An error warning is deleted when the cause of error is eliminated.
If more than one fault is detected at the safety outputs,
the component will be electronically locked and a normal
fault reset will no longer be possible.
To reset this type of interlocking, the component must be
isolated from the power supply after elimination of the error
causes.
Behaviour of the diagnostic outputs of the W and W2 variants
Input signal magnet control
IN
Normal sequence, door was locked
OUT
Door could not be locked or fault
OUT
Key
Safety guard open
Unlock safety guard
Locking time
typically: 100 ... 150 ms
Safety guard closed
Safety guard locked
Safety guard not locked or
fault
max.: 1 s
Evaluation of the diagnostic outputs of the W and W2 variants
SPS/PLC
A1.0
E1.0
MZM 100
IN
OUT
IN = 1 = locking
A1.0
&
M1.0
E1.0
Door can be locked
A1.0
E1.0
M2.0
&
Door is locked
6
EN
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
Table 1: Diagnostic function
The diagnostic output "OUT" signals faults before the safety outputs are disabled, thus enabling a controlled shutdown.
Diagnostic function of MZM 100 variant "Solenoid interlock monitored"
System condition Solenoid control LED Safety outputs Diagnostic output OUT
IN green red yellow Y1, Y2 -1P2P -1P2PW
Safety guard open 0 V On Off Off 0 V 0 V 0 V
Safety guard closed, actuator in 0 V On Off Flashes 0 V 24 V 24 V
Safety guard closed and locked 24 V On Off On 24 V 24 V 24 V
Solenoid interlock cannot be locked.
24 V On Off Flashes 0 V 24 V 0 V
Safety guard not correctly closed or
magnet soiled
Error warning1), Safety guard locked 24 V On Flashes
Error 0 V / 24 V On Flashes
Violent separation of solenoid inter-
24 V On Flashes 2)Flashes
2)
On 24 V 0 V 0 V
2)
Off 0 V 0 V 0 V
2)
0 V 0 V 0 V
lock and actuator
Diagnostic function of MZM 100 B variant "Actuator monitored"
System condition Solenoid control LED Safety outputs Diagnostic output OUT
IN green red yellow Y1, Y2 -1P2PW2
Safety guard open 0 V On Off Off 0 V 0 V
Safety guard closed, actuator in,
0 V On Off Flashes 24 V 24 V
safety guard can be locked
Safety guard closed and locked 24 V On Off On 24 V 24 V
Solenoid interlock cannot be locked.
24 V On Off Off 0 V 0 V
Safety guard not correctly closed or
magnet soiled
Error warning1),
actuator in
Error 0 V / 24 V On Flashes
1)
after 30 min -> fault
2)
refer to flash code
0 V / 24 V On Flashes 2)flashes/
on
2)
Off 0 V 0 V
24 V 0 V
Table 2: flash codes of the red diagnostic LED
Flash codes Designation Autonomous
Error cause
switch-off after
1 flash pulse Error (warning)
at output Y1
2 flash pulses Error (warning)
at output Y2
3 flash pulses Error (warning)
cross-wire short
30 min Fault in output test or voltage at output Y1,
although the output is disabled.
30 min Fault in output test or voltage at output Y2,
although the output is disabled.
30 min Cross-wire short between the output cables or fault at both outputs.
After 30 minutes, voltage switch-off/on required
5 flash pulses Actuator fault 0 min Wrong or defective actuator.
6 flash pulses Latching force fault 0 min Latching force has dropped below 500 N (e.g. actuator misalignment)
10 flash pulses Magnet temperature too high 0 min The magnet is too hot:
T > 70 °C
Continuous
Internal error 0 min Device defective
red signal
EN
7
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
6.3 Solenoid interlock with serial diagnostic function
Solenoid interlocks with serial diagnostic function have a serial input
and output instead of the conventional diagnostic output. If SD devices
are wired in series, the safety channels as well as the inputs and
outputs of the diagnostic channels are wired in series. The diagnostic
data are transmitted through the series-wiring of the inputs and outputs.
Max. 31 safety switchgear with serial diagnostics can be wired in series.
For the evaluation of the serial diagnostics line either the PROFIBUSGateway SD-I-DP-V0-2 or the Universal-Gateway SD-I-U-... are used.
This SD-Gateway is integrated as a slave in an existing field bus
system. In this way, the diagnostic signals can be evaluated by means
of a PLC. The necessary software for the integration of the
SD-Gateway is available for download at www.schmersal.net.
The response data and the diagnostic data are automatically and
permanently written in an input byte of the PLC for each safety device
in the series-wired chain. The request data for each safety device is
transmitted to the component through an output byte of the PLC.
In case of a communication error between the SD-gateway and the
safety device, the switching condition of the solenoid interlock is
maintained.
Table 3: I/O data and diagnostic data
Communication directions: request byte: from the PLC to the local electronic safety switchgear response byte: from the local electronic safety
switchgear to the PLC warning/error byte: from the local electronic safety switchgear to the PLC
Error
A fault has occurred, which causes the safety outputs to be disabled.
The fault is reset, when the cause is eliminated and bit 7 of the request
byte changes from 1 to 0 or the safety guard is opened. Faults at the
safety outputs are only deleted upon the next release, as the fault
rectification cannot be detected sooner.
Error warning
A fault has occurred, which causes the safety outputs to be disabled
after 30 minutes. The safety outputs initially remain enabled.
This enables the shutdown of the process in a controlled manner.
An error warning is deleted when the cause of error is eliminated.
Diagnostic error (warning)
If an error (warning) is signalled in the response byte, detailed fault
information can be read out.
Bit n° Request byte Response byte Diagnostic
Bit 0: Magnet in,
error reset
Bit 1: Latching force bit Actuator detected Error output Y2 Error output Y2
Bit 2: Latching force bit Solenoid interlock locked Cross-wire short Cross-wire short
Bit 3: Latching force bit --- Magnet temperature too high Magnet temperature too high
Bit 4: --- Input condition
Bit 5: --- --- Internal device error Internal device error
Bit 6: --- Error warning Communication error between the field
Bit 7: Error reset Error (enabling path
The described condition is reached, when Bit = 1
Safety output
activated
X1 and X2
switched off)
Error warning
Error output Y1 Error output Y1
Locking blocked or
F < 500 N
bus Gateway and the safety switchgear
Operating voltage too low Operating voltage too low
Diagnostic
Error
incorrect or defective actuator
Violent separation of actuator and
solenoid interlock (only in connection
with "Solenoid interlock monitored")
8
EN
Operating instructions
Solenoid interlock
MZM 100
MZM 100 B
Table 4: Function of the visual diagnostic LED`s, the serial status signals and the safety outputs by means of an example
- of MZM 100 variant "Solenoid interlock monitored"
System condition LED Safety outputs Response byte bit n°:
green red yellow Y1, Y2 7 6 5 4 3 2 1 0
Safety guard open On Off Off 0 V 0 0 0 X 0 0 0 0
Safety guard closed, actuator in On Off Flashes 0 V 0 0 0 X 0 0 1 0
Safety guard closed and locked On Off On 24 V 0 0 0 X 0 1 1 1
Solenoid interlock cannot be locked. Safety
On Off Flashes 0 V 0 0 0 X 0 0 1 0
guard not correctly closed or magnet soiled
Error warning1) Safety guard locked On Flashes
Error On Flashes
2)
On 24 V 0 1 0 X 0 1 1 1
2)
Off 0 V 1 0 0 X 0 X X 0
- of MZM 100 B variant "Actuator monitored"
System condition LED Safety outputs Response byte bit n°:
green red yellow Y1, Y2 7 6 5 4 3 2 1 0
Safety guard open On Off Off 0 V 0 0 0 X 0 0 0 0
Safety guard closed, actuator in,
On Off Flashes 24 V 0 0 0 X 0 0 1 0
safety guard can be locked
Safety guard closed and locked On Off On 24 V 0 0 0 X 0 1 1 1
Solenoid interlock cannot be locked. Safety
On Off Flashes 0 V 0 0 0 X 0 0 0 0
guard not correctly closed or magnet soiled
Error warning1), actuator in On Flashes 2)On 24 V 0 1 0 X 0 X 1 1
Error On Flashes 2)Off 0 V 1 0 0 X 0 X X 0
1)
after 30 min -> fault
2)
refer to flash code
7. Set-up and maintenance
7.1 Functional testing
The safety function of the safety components must be tested.
The following conditions must be previously checked and met:
8. Disassembly and disposal
8.1 Disassembly
The safety switchgear must be disassembled in a de-energised
condition only.
1. Check max. axial misalignment of actuator and safety switchgear
2. Check max. angular misalignment (see “Mounting” part)
3. Check the integrity of the cable entry and connections.
4. Check the switch enclosure for damage.
8.2 Disposal
The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.
5. Remove particles of dust and soiling.
7.2 Maintenance
In the case of correct installation and adequate use, the safety
switchgear features maintenance-free functionality. A regular visual
inspection and functional test, including the following steps, is
recommended:
• Check of the safety function
• Check the fixing of the safety switch and the actuator
• Check max. axial misalignment of actuator and solenoid interlock
• Check max. angular misalignment (see “Mounting” part)
• Check the integrity of the cable entry and connections.
• Check the switch enclosure for damages
• Remove soiling
Adequate measures must be taken to ensure protection
against tampering either to prevent tampering of the safety
guard, for instance by means of replacement actuators.
Damaged or defective components must be replaced.
EN
9
Operating instructions
GND
GND
Solenoid interlock
9. Appendix
9.1 Wiring examples
The application examples shown are suggestions. They however do not release the user from carefully checking whether the switchgear and its
set-up are suitable for the individual application.
Wiring example 1: Series-wiring of the MZM 100 with conventional diagnostic output
The voltage is supplied at both safety inputs of the terminal safety component of the chain (considered from the safety-monitoring module).
The safety outputs of the first safety component are wired to the safety-monitoring module.
MZM 100
MZM 100 B
12356 8
A1
X2
A2
7
Y2
4
IN
Y1
SPS/PLC
Y1
Y2
Safety outputs → evaluation
X1
OUT
SPS/PLC
12356 8
A1
X2
A2
7
Y2
4
IN
Y1
SPS/PLC
Y1
Y2
X1
X2
X1
OUT
SPS/PLC
24 VDC
n-participants
Wiring example 2: series-wiring of the MZM 100 with serial diagnostic function
The safety outputs of the first safety component are wired to the safety-monitoring module. The serial Diagnostic Gateway is connected to the serial
diagnostic input of the first safety component.
1235468
X1
A1
X2
A2
SD OUT
7
Y2
Y1
SD IN
SD IN
Y1
Y2
SD OUT
X1
X2
1235468
X1
A1
X2
A2
SD OUT
7
Y2
Y1
SD IN
SD IN
Y1
Y2
Field bus
Safety outputs → evaluation
24 VDC
10
n-participants max. 31 components in series
EN
Operating instructions
9
4
5
6
7
5
8
3
7
Solenoid interlock
9.2 Wiring configuration and connector accessories
MZM 100
MZM 100 B
Function safety switchgear Pin configuration of the
connector
with conventional
diagnostic output
A1 U
X1 Safety input 1 2 2 BN WH
A2 GND 3 3 GN BU
Y1 Safety output 1 4 4 YE BK
OUT Diagnostic output SD output 5 5 GY GY
X2 Safety input 2 6 6 PK PK
Y2 Safety output 2 7 7 BU VT
IN Solenoid control SD input 8 8 RD OR
without function 9
Connector plug ST M23, (8+1)-pole Connector plug ST2 M12, 8-pole
3
2
8
1
Connecting cables with female connector
IP67, M23, (8+1)-pole - 8 x 0.75 mm²
Cable length Part number Cable length Part number
5.0 m
10.0 m
with serial
diagnostic function
e
101209959
101209958
1 1 WH BN
4
6
2
1
Connecting cables with coupling (female)
IP67 / IP69, M12, 8-pole - 8 x 0.23 mm²
to DIN 47100
2.5 m
5.0 m
10.0 m
Conductor numbering or
colour code of the
Schmersal connectors
M23, IP67
103011415
103007358
103007359
M12, IP67 / IP69
to DIN 47100
Poss. colour codes of other
customary connectors
IEC 60947-5-2: 2007
to
Connector with plug (female)
IP67, M23, (8+1)-pole - 8 x 0.75 mm²
Design Part number
with soldering terminals
with crimp terminals
101209970
101209994
EN
11
Operating instructions
Solenoid interlock
10. EU Declaration of conformity
EU Declaration of conformity
MZM 100
MZM 100 B
Original K.A. Schmersal GmbH & Co. KG
We hereby certify that the hereafter described components both in their basic design and construction conform
to the applicable European Directives.
Name of the component: MZM 100,
Type: See ordering code
Description of the component: Interlocking device with electromagnetic
Relevant Directives: Machinery Directive
Applied standards: DIN EN 60947-5-3:2014,
Möddinghofe 30
42279 Wuppertal
Germany
Internet: www.schmersal.com
MZM 100 B
interlock for safety functions (MZM 100) and
safety switch with interlocking functions (MZM 100 B)
EMC-Directive
RoHS-Directive
EN ISO 14119:2013,
DIN EN ISO 13849-1:2008 + AC:2009,
DIN EN ISO 13849-2:2013,
DIN EN 61508 parts 2, 3, 6:2011
2006/42/EC
2014/30/EU
2011/65/EU
Notied body, which approved
the full quality assurance system,
referred to in Appendix X, 2006/42/EC:
Person authorised for the compilation
of the technical documentation:
Place and date of issue: Wuppertal, December 2, 2016
MZM100-G-EN
TÜV Rheinland Industrie Service GmbH
Alboinstr. 56, 12103 Berlin
ID n°: 0035
Oliver Wacker
Möddinghofe 30
42279 Wuppertal
Authorised signature
Philip Schmersal
Managing Director
The currently valid declaration of conformity can be
downloaded from the internet at www.schmersal.net.
K. A. Schmersal GmbH & Co. KG
Möddinghofe 30, D - 42279 Wuppertal
Postfach 24 02 63, D - 42232 Wuppertal
Phone: +49 - (0)2 02 - 64 74 - 0
Telefax: +49 - (0)2 02 - 64 74 - 1 00
E-Mail: info@schmersal.com
Internet: http://www.schmersal.com
12
EN
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