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Muting Module

Models MMD-TA-11B and MMD-TA-12B

Instruction Manual

Section Contents

Section 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1

Section 2

Components and Specifications . . . . . . . . . . . . . . . . . . . . . Page 8

Section 3

System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12

Section 4

Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 39

Section 5

Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . Page 40

Section 6

Checkout Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 42

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 45

Features

• Compact, 67.5 mm DIN-mounted housing with

plug-in terminal blocks.

• For use with EZ-SCREEN

Output Signal Switching

Device (OSSD) outputs or MINI-SCREEN

, MICRO-

SCREEN

, MACHINE-GUARD

, or other safety

devices with hard relay contact safety output(s) or

+24V dc (PNP) outputs.

• Monitors two or four inputs to automatically suspend

the safety function of a safeguarding device.

• Can be used as a dual controller when muting

function is not used.

• Safety (protective) Stop Interface (SSI) for connection

of supplemental safeguarding devices, E-stops, or

other devices.

• Category 2, 3, or 4 hookup per ISO 13849-1/-2.

• Selectable external device monitoring (EDM).

• Selectable Automatic or Monitored Manual Reset

provides flexibility for point-of-operation, area, or

perimeter guarding.

• Two N.O. safety contacts (model MMD-TA-11B) or

diverse-redundant solid-state safety outputs (model

MMD-TA-12B).

• Status LEDs and two-digit Diagnostic Display indicate

module status.

• Easy configuration for:

Auto/manual reset

One-/two-channel EDM

One-/two-direction muting

Selectable mute enable

Monitored/non-monitored mute lamp

Selectable backdoor timer

Selectable mute on power-up

Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]

Содержание MMD-TA-11B

Страница 1: ...safety function of a safeguarding device Can be used as a dual controller when muting function is not used Safety protective Stop Interface SSI for connection of supplemental safeguarding devices E stops or other devices Category 2 3 or 4 hookup per ISO 13849 1 2 Selectable external device monitoring EDM Selectable Automatic or Monitored Manual Reset provides flexibility for point of operation are...

Страница 2: ...re that all local state and national laws rules codes and regulations relating to the use of this safeguarding system in any particular application are satisfied Extreme care is urged to ensure that all legal requirements have been met and that all installation and maintenance instructions contained in this manual are followed Table of Contents 1 Overview page 1 1 1 Introduction page 1 1 2 Operati...

Страница 3: ...UX Override Reset 24V dc 0V dc GND FSD2 OSSD2 FSD1 OSSD1 Safety Light Screen Defined Area Mute Lamp Model MMD TA 11B These are relay contact outputs Model MMD TA 12B This is a solid state output Figure 1 1 Block diagram of a safeguarding system employing the Muting Module and a safety light screen user supplied as a primary safety device The muting function allows material to be manually or automa...

Страница 4: ...c Display visible through a window in the front cover The individual LEDs provide constant ongoing system status information at a glance The Diagnostic Display provides error codes that correspond to the cause of a fault or configuration error which results in a lockout and other more detailed conditions See Sections 4 and 5 for further information Muteable Safety Stop Input s MSSI Active LEDs gre...

Страница 5: ...SI are active closed The OSSD outputs will also turn ON after either interface is de activated and then re activated In either case no external input or reset is required Automatic reset is typically used in situations where the individual is continually sensed by the defined area or in situations where supplemental safeguards prevent the initiation of hazardous motion while an individual is withi...

Страница 6: ...either both open or both closed If the inputs remain in opposite states for more than 200 milliseconds a lockout will occur Additionally both inputs must be closed 200 milliseconds after the OSSD outputs go OFF or a lockout will occur No Monitoring If no monitoring is desired the 1 ch 2 ch selection switches must be configured for two channel EDM and Y1 must be jumpered to Y3 If the Module is set ...

Страница 7: ...the muting device requirements in Sections 2 and 3 5 2 These contacts must close conduct when the switch is actuated to initiate the mute and must open non conducting when the switch is not actuated and in a power OFF condition The Module monitors the mute devices to verify that their outputs turn ON within 3 seconds of each other If the inputs do not meet this simultaneity requirement a mute cond...

Страница 8: ...ured for Manual Reset The Override function can be activated see Section 1 16 to force the OSSDs ON in order to clear the obstruction If the Backdoor Timer expires a 50 error code will be displayed until all mute device inputs are open and the MSSI is active closed The Backdoor Timer can be disabled i e set for infinite time See Figure 3 2 and configure DIP switches 7 and 8 for Backdoor Time Out O...

Страница 9: ...cate of professional training or who by extensive knowledge training and experience has successfully demonstrated the ability to solve problems relating to the implementation of this safety system 1 16 Override The Override function X9 X10 X11 X12 allows the user to manually force the OSSD outputs ON for up to 30 seconds in a situation such as an object becoming stuck in the defined area of a safe...

Страница 10: ... current low voltage In these low power applications multiple contacts can also be switched in series e g dry switching To preserve the gold plating on the contacts and also guarantee reliable switching the following values should be kept within the min and max ranges shown below Min voltage 1V ac dc Max voltage 60V Min current 5 mA ac dc Max current 300 mA Min power 5 mW 5 mVA Max power 7 W 7 VA ...

Страница 11: ...x 24V 250 mA PNP output follows the two OSSD safety outputs Status Indicator LEDs 3 Status Indicator LEDs Red Green and Yellow indicate waiting for Reset Lockout Override and OSSD status Yellow and Green LEDs adjacent to individual inputs interfaces indicate status ON active closed Diagnostic Code Display Diagnostic Display is a two digit numeric display that indicates the cause of lockout conditi...

Страница 12: ... simultaneity requirement synchronous actuation to initiate a mute assuming all other conditions are met Each muting device must be capable of switching 15 30V dc at 10 50 mA Mute Enable Input The Mute Enable input must have 24V dc applied in order to start a mute opening this input after mute has begun has no effect The switching device must be capable of switching 15 30V dc at 10 50 mA Override ...

Страница 13: ...ens stack light style on 12 pole see data sheet p n 62097 M18RGR5PNQ 24V dc Red Green Amber indication M18 EZ LIGHT with 4 pin Euro style QD 2 2 Accessories Solid State LED Based Mute Lamp 2 1 Specifications continued Application Notes Mute Timing Sequences see Appendix A Typical Muting Applications see Appendix B Application Standards see inside back cover Phone 800 894 0412 Fax 888 723 4773 Web ...

Страница 14: ...ding on hazardous machinery as instructed by the appropriate installation manuals can result in a dangerous condition which could lead to serious injury or death WARNING Read this Section Carefully Before Installing the System The Banner MMD TA 11B or 12B Muting Module is an accessory device that is typically used in conjunction with a machine safeguarding device Its ability to perform this functi...

Страница 15: ...the hazardous area while the System is muted and not be detected by supplemental safeguarding that will issue a stop command to the machine see Section 3 1 4 Pass Through Hazards 3 1 2 Use of Corner Mirrors with Optical Safety Systems Mirrors are typically used with safety light screens and single multiple beam safety systems to guard multiple sides of a hazardous area If the safety light screen i...

Страница 16: ...al personnel entering the safeguarded area unnoticed The reset of a safeguard must not initiate hazardous motion Also before each reset of the safeguard is performed safe work procedures require that a start up procedure be followed and that the individual performing the reset verify that the entire hazardous area is clear of all personnel If any areas can not be observed from the reset switch loc...

Страница 17: ...e g SW 1 refer to both switch banks A and B Factory default setting Figure 3 3 Use a screwdriver to gently pry the cover loose from the Module housing ON OFF Factory Default Settings 1 2 3 4 5 6 7 8 Switch Bank A Switch Bank B Switch ON Position OFF Position 1 Auto Manual MSSI Reset See Section 1 3 MSSI auto reset MSSI manual reset 2 Auto Manual SSI Reset See Section 1 3 SSI auto reset SSI manual ...

Страница 18: ...DM 1 a Out 24V X3 Mute Lamp Out 24V Y5 OSSD 1 a Out Y2 EDM 1 b In X4 Mute Lamp In Y6 OSSD 1 b 0V Y3 EDM 2 b In Z3 AUX b 0V Y7 OSSD 2 b 0V Y4 EDM 2 a Out 24V Z4 AUX a Out Y8 OSSD 2 a Out A1 24V dc Z14 M4 0V X13 Mute Enable Out 24V X1 Reset In M4 Muting 4 In NPN X14 Mute Enable In X2 Reset Out 24V Z24 M4 24V A2 0V dc All terminals are low voltage Figure 3 4b MMD TA 12B terminal connection locations ...

Страница 19: ...keys in the possession of others or additional personnel entering the safeguarded area unnoticed may create a hazardous situation Reset Routine The Muting Module requires a manual reset to clear a latch condition and resume operation following a stop command To perform a manual reset close the normally open reset switch and hold it there for at least 1 4 second but not longer than 2 seconds and th...

Страница 20: ...e logic controller or similar device 4 The muting devices must be installed so that they can not be easily defeated or bypassed 5 The muting devices must be mounted so that their physical position and alignment can not be easily changed 6 It must not be possible for environmental conditions to initiate a mute condition e g extreme airborne contamination 7 The muting devices must not be set to use ...

Страница 21: ... Retro Z11 Z23 M3 M3 PNP Z13 Z22 M2 M2 or or Z12 MMD TA B NPN Z24 M4 M4 Z14 Figure 3 9 Two or four sensors using semiconductor outputs Muting Device Hookup The Module provides supply voltage if required and input connections for the muting devices One or two pairs of muting devices typically sensors or switches must be used these pairs are designated M1 M2 and M3 M4 The M1 and M3 inputs are PNP so...

Страница 22: ...Section 1 16 The Module can be configured for a monitored or non monitored mute lamp It is the user s responsibility to make sure that each application meets local regulations If the installation is governed by UL regulations the mute lamp must be monitored SW7 OFF banks A and B This output may also be used as an input to control logic e g a PLC if non monitored is selected SW7 ON banks A and B Th...

Страница 23: ...4 see CSA Z432 and ANSI B11 TR4 If the requirements described by ISO 13849 1 EN954 1 are to be implemented a risk assessment must first be performed to determine the appropriate category in order to ensure that the expected risk reduction is achieved This risk assessment must also take into account national regulations such as U S control reliability or European C level standards to ensure that th...

Страница 24: ...application any device connected to the SSI and MSSI inputs must meet certain criteria For example a type 3 laser area scanner that meets IEC 61496 1 3 is a device that meets category 3 requirements In a category 3 safety application a single fault must not cause the loss of the safety function This is usually accomplished by using redundant safety inputs or outputs from the safety rated device Fa...

Страница 25: ...eve this level of fault tolerance by self monitoring a pulsing of the outputs Safety devices with hard contact or relay outputs must be connected in a 4 wire method as shown in Figure 3 15c The principle of fault exclusion must be incorporated into the design and installation to either eliminate or reduce to an acceptable minimal level of risk the possibility of catastrophic failures faults that c...

Страница 26: ...gency Stop actuator shall be a self latching type NOTE Some applications may have additional requirements The user must comply with all relevant regulations Safety Circuit Integrity Levels and Emergency Stop functions As part of the required risk assessment for the machine ANSI NFPA 79 and IEC EN 60204 1 state that the safety performance integrity must reduce the risk from identified hazards as de...

Страница 27: ... the switching action in one channel is detected by the actuation of the E stop button the opening of the second channel and the monitoring function of the SSI inputs However a short circuit between input channels or safety outputs may not be detected It should be noted that an accumulation of faults may cause the loss of the safety function The principle of fault exclusion must be incorporated in...

Страница 28: ... with the Muting Module must satisfy several requirements Each switch must provide electrically isolated contacts at minimum one normally closed N C contact from each individually mounted switch The contacts must be of positive opening direct opening design as described by IEC 60947 5 1 with one or more normally closed contacts rated for safety Positive opening operation causes the switch to be fo...

Страница 29: ...dule does not reset a switch may have failed that switch must be immediately replaced This check must be performed and all faults must be cleared at a minimum during periodic checkouts If the application can not exclude these types of failures and such a failure could result in serious injury or death then the series connection of safety switches must not be used Category 2 A single channel interl...

Страница 30: ... eliminate or reduce to an acceptable minimal level of risk the possibility of catastrophic failures faults that could result in the loss of the safety function Open a b c d MMD TA B A1 A2 X6 X5 X8 X7 S12 S11 S22 S21 MSSI or SSI 24V dc 0V dc NOTE Two independently mounted positive opening switches per guard Figure 3 21 SSI Category 4 interfacing positive opening interlocking switch es a b c MMD TA...

Страница 31: ...e used to reset the system in the event of a stop command being sent to the machine interface This allows the EZ SCREEN to be interrupted as materials pass through during a muted condition without requiring a reset each time a blocked condition occurs 3 5 6 5 SSI Supplemental Safety System Hookup A variety of safety systems can be interfaced with the MSSI and the SSI Each safety application has a ...

Страница 32: ...ion for your application and All input connections have been made per appropriate sections for the Mute Input Devices M1 M4 SSI MSSI Manual Reset Switch Mute Lamp AUX Output and Override Input This will allow the Muting Module and the associated safety systems to be checked out by themselves before permanent connections are made to the guarded machine 3 6 1 Temporary Power and Initial Checkout 1 C...

Страница 33: ...ing both photoelectric beams or actuating both switches and being able to pass through the safeguard without being detected and without issuing a stop command to the machine Do not expose any individual to hazard while attempting to mute the system 12 Verify that it is not possible for personnel to pass in front of behind or next to the muted object without being detected and without issuing a sto...

Страница 34: ...ring SW4 Banks A and B OFF or 2 CH NOTE Terminal Y1 of EDM 1 must be jumpered to Y3 of EDM 2 After the initial checkout has been successfully completed the EDM configuration that disabled the monitoring function must be properly reconfigured The External Device Monitoring inputs then must be properly connected to the closed monitoring contacts of the MPCEs see Section 1 10 Refer to the NOTICE Rega...

Страница 35: ...acts allow the device to be monitored by the external device monitoring circuit for certain failures Dependent on the application the use of FSDs can facilitate controlling voltage and current that differs from the OSSD outputs of the Module FSDs can also be used to control an additional number of hazards by creating multiple safety stop circuits Safety Protective Stop Circuits A safety stop allow...

Страница 36: ...hod of interfacing should only be used in installations where FSD safety stop circuits and the MPCEs are physically located within the same control panel adjacent to each other and are directly connected to each other or where the possibility of such a failure can be excluded If this can not be achieved then two channel control should be used Methods to exclude the possibility of these failures in...

Страница 37: ...ock Hazard Always disconnect all power from the Muting Module and the guarded machine before making any connections or replacing any component Use extreme caution to avoid electrical shock at all times Serious bodily injury or death could result NOTE Do not exceed OSSD maximum load capacitance specifications See Section 3 7 4 on interfacing of safety stop circuits WARNING OSSD Interfacing To ensur...

Страница 38: ... of Transient Suppressors Transient suppressors are recommended They MUST be installed across the coils of the machine control elements NEVER install suppressors directly across the outputs of the Module It is possible for suppressors to fail as a short circuit If installed directly across the contacts of the Module a short circuited suppressor will create an unsafe condition WARNING OSSD Interfac...

Страница 39: ... of Transient Suppressors Transient suppressors are recommended They MUST be installed across the coils of the machine control elements NEVER install suppressors directly across the outputs of the Module It is possible for suppressors to fail as a short circuit If installed directly across the contacts of the Module a short circuited suppressor will create an unsafe condition WARNING OSSD Interfac...

Страница 40: ...ation The proper wiring of the Muting Module to any particular machine is solely the responsibility of the installer and end user CAUTION Shock Hazard Always disconnect all power from the Muting Module and the guarded machine before making any connections or replacing any component Use extreme caution to avoid electrical shock at all times Serious bodily injury or death could result WARNING Use of...

Страница 41: ...raining and experience has successfully demonstrated the ability to solve problems relating to the subject matter and work 4 2 Periodic Checkout Requirements In addition to the checkouts that are performed by a Qualified Person or persons at the time that the Module is installed and put into service the functioning of the safeguarding and the machine must be verified on a regular periodic basis to...

Страница 42: ... remedies have not cleared the problem Sensor wires or input output wires routed too close to noisy wiring In extreme conditions it may be necessary to use shielded cabling or relocate the Module mute devices and cabling away from the source of the noise 5 Troubleshooting and Maintenance 5 4 Repairs NOTE Do not attempt any repairs to the Module It contains no field replaceable components Return th...

Страница 43: ...tion 200 ms Excessive EMI RFI noise EDM remains open 200 ms after OSSDs go OFF if dropout time verification check on EDM not closed at startup Status Error Code Condition Error Type Action 39 EDM 2 Error Verify that input 2 is open single channel EDM selected Check wiring Check operation of device s under control Check DIP switch settings Excessive EMI RFI noise EDM not closed at startup Y3 Y4 40 ...

Страница 44: ...ee Section 5 Attempts to use the guarded machine under such conditions could result in serious bodily injury or death WARNING Before Applying Power to the Machine Verify that the guarded area is clear of personnel and unwanted materials such as tools before applying power to the guarded machine Failure to do so could result in serious bodily injury or death 6 2 Commissioning Checkout Perform this ...

Страница 45: ...facturer Banner s Applications Engineering Department may be able to recommend a suitable instrument Do not continue operation until the entire checkout procedure is complete and all problems are corrected Muting Checkout 13 Verify that the Module has been reset and the Green status indicator is ON If the Yellow status indicator is flashing indicating the safety system that includes the MMD TA 1 B...

Страница 46: ... and the Module verify that the machine does not automatically restart and that the initiation devices must be engaged to restart the machine 7 With the guarded machine at rest generate a stop command from the safeguarding device s and verify that it is not possible for the guarded machine to be put into motion 8 Check carefully for external signs of damage or changes to the safety system that inc...

Страница 47: ...osed Closed Mute M2 Mute Cycle System Reset M3 Mute Inputs M4 Closed Mute Mute cycle prevented due to mute devices M3 and M4 closing before M1 and M2 Two Way Muting A normal mute cycle would occur NOTE A mute cycle begins 100 ms after the second mute input becomes active if all other conditions are met AUX Outputs MMD TA 11B Muting Sequence with Four Muting Devices For example an Entry Exit System...

Страница 48: ...Light Screen M1 M2 Light Screen Receiver Light Screen Emitter Figure B 1 X Pattern Entry Exit system using two pairs of opposed mode photoelectric muting devices Figure B 2 Horizontal photoelectric muting devices placed at different heights Figure B 3 Photoelectric muting devices placed diagonally Light Screen Defined Area M1 Receiver Not Shown M2 Receiver M1 Emitter M2 Emitter Not Shown M1 Emitte...

Страница 49: ...ng can be used in Exit applications to reduce the possibility of intentional defeat Hard Guarding Whisker Limit Switches Transfer Line Figure B 4 Entry exit system using 4 whisker limit switches as muting devices Fig ure B 5 An entry exit system using four photoelectric sensors as M1 M2 M3 and M4 R E Carrier Basket M1 Hard Guarding M2 M3 M4 Light Screen A speed of line ft sec x 0 1 sec B 3 or posi...

Страница 50: ...sed by the door closing M3 and M4 could be two SI QS75MC safety switches each with a single safety contact used for the muting input M1 and M2 could be SI QS90MF safety switches each with two safety contacts one for muting and one for interlocking and one monitoring contact for a logic input If the light screen is also guarding hazards within the enclosure when the door is open or preventing cycle...

Страница 51: ... while the operator is present the safety light screen will immediately issue a stop Angled Light Screen Station B Hard Guarding Station A M1A and M2A Station A Mute Circuit M1B and M2B Station B Mute Circuit Retroreflective Targets Detail B Station B Run Bar with Two Hand Control E Stop and Clamping Manual Release Station A Run Bar Angled Light Screen Station A Work Envelope Clamping and Welding ...

Страница 52: ...lective Targets at Each Position to Initiate a Mute M2 Defined Area Hard Guarding Load Unload Figure B 8 A typical application for turret table inspection or operation station muting using retroreflective photoelectric sensors as muting devices When the table begins indexing again the polarized retroreflective photoelectrics immediately lose sight of the targets and end the mute Since the rotation...

Страница 53: ... during a muted condition the control must include an automatic means through which muting is permitted in the forward non hazardous direction only A Mute Enable signal from the machine control motor drive or other machine logic is a means to assist in meeting this requirement WARNING Proper Installation The user has the responsibility to ensure that all local state and national laws rules codes a...

Страница 54: ...lified to perform a specified checkout procedure See Qualified Person Emitter the light emitting component of a safety light screen system consisting of a row of synchronized modulated LEDs The emitter together with the receiver placed opposite creates a screen of light called the defined area External Device Monitoring EDM a means by which a safety device such as a safety light screen actively mo...

Страница 55: ...bor that is responsible for the regulation of workplace safety OSSD Output Signal Switching Device The safety outputs that are used to initiate a stop signal Pass Through Hazard A situation that may exist when personnel pass through a safeguard at which point the hazard stops or is removed and then continue into the guarded area At this point the safeguard may not be able to prevent an unexpected ...

Страница 56: ...e OSSDs simultaneously de energize A Trip condition clears resets automatically when the object is removed from the defined area See Latch Condition TUV Technischer Überwachungsverein independent testing and certification organization providing EMC and product safety testing certification and quality management systems registration UL Underwriters Laboratory a third party organization that tests p...

Страница 57: ... 954 1 Safety Related Parts of Control Systems ISO DIS 13855 EN 999 The Positioning of Protective Equipment in Respect to Approach Speeds of Parts of the Human Body ISO 14121 EN 1050 Principles of Risk Assessment ISO 14119 EN 1088 Interlocking Devices Associated with Guards Principles for Design and Selection IEC EN 60204 1 Electrical Equipment of Machines Part 1 General Requirements IEC EN 61496 ...

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