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Introduction

MM-TA-12B Muting Module

Instruction Manual

1. Introduction

1.1 Overview

The Banner MM-TA-12B Muting Module is an accessory component of a safeguard-
ing system, which may incorporate such primary safeguards as safety light screens,
safety interlocked gates/guards, or other presence-sensing safeguarding devices
(PSSDs). The Module allows the machine to mute the primary safeguard by moni-
toring redundant inputs (two or four) and automatically suspend the safeguarding
function of a safeguarding device during the non-hazardous portion of the machine
cycle.

In this manual, the term “muting” refers to the automatic suspension of the safe-
guarding function of the primary safety device during a non-hazardous portion of
the machine cycle. (During the non-hazardous portion of the machine cycle, person-
nel are not exposed to harm.)

The muting function allows material to be manually or automatically fed into or
removed from a machine process, without tripping the primary safeguard. The
Module accomplishes this by using diverse-redundant microprocessors that monitor
the status of inputs and outputs, so that a single fault will cause the Module to issue
a stop command to the machine. The Module, like all Banner safety products, is
extensively FMEA (Failure Mode and Effects Analysis) tested to establish an
extremely high degree of confidence that no internal component will, even if it does
fail, cause a failure to danger. This design philosophy aids machine designers to
comply with U.S. control reliability and worldwide standards for the highest level of
safety.

MM-TA-12B

Muting Module

Safety Light

Screen Control

CH B

+24V dc

0V dc

GND

OSSD1

OSSD2

EDM1
EDM2

Mute
Enable

CH A

+24V dc

MSSI

Machine

Interface

0V dc

GND

Mute Devices

M1, M2, M3, M4

USSI

AUX Mute

Lamp

Override Reset

+24V dc

0V dc

GND

FSD2/OSSD2

FSD1/OSSD1

Safety Light Screen

Defined Area

Figure 1-1. Block diagram of a safeguarding system employing the MM-TA-12B Muting Module and a safety light screen (user-

supplied) as a primary safety device

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Содержание MM-TA-12B

Страница 1: ...nterface USSI for connec tion of supplemental safeguarding devices or E stops Selectable external device monitoring EDM Selectable Automatic or Monitored Manual Reset provides flexibility for point of...

Страница 2: ...he user has the responsibility to ensure 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...

Страница 3: ...ess without tripping the primary safeguard The Module accomplishes this by using diverse redundant microprocessors that monitor the status of inputs and outputs so that a single fault will cause the M...

Страница 4: ...pass through and become clear of the sensing field See Section 3 1 4 Pass through hazards The configuration is selected via two banks of DIP switch es located inside the Module s configuration port se...

Страница 5: ...rom a lockout con dition 1 4 Lockout Conditions A lockout condition of the Module will cause both OSSD outputs to go OFF and the Aux output to open A lockout condition is indicated by a flashing Red s...

Страница 6: ...outputs are actively monitored to detect short cir cuits to the supply voltage to each other and to other sources of electrical ener gy If a failure is detected the outputs will switch to an OFF stat...

Страница 7: ...If the Module is set for No Monitoring the user must ensure that any single failure of the external devices does not result in a hazardous condition and a successive machine cycle will be prevented s...

Страница 8: ...closed the Module will allow a mute condition to occur opening this input while the System is muted will have no effect If the application does not require Mute Enable the input must be left open and...

Страница 9: ...wed to occur This feature hinders the intentional defeat of the mut ing devices to initiate an inappropriate mute It is also useful for detecting a com mon mode failure that would affect all mute devi...

Страница 10: ...e actuated in the order M1 M2 mute initiated M3 and M4 This method allows for a single direction material flow and reduces the possibility of intentional defeat of the muting devices Two way non direc...

Страница 11: ...tance 1 000 ohms OFF State voltage 1 2V dc max Max load capacitance 0 1 F Non safety auxiliary output PNP solid state output rated at 24V dc 250 mA Status Indicator LEDs 3 Status Indicator LEDs Red Gr...

Страница 12: ...pable of switching 15 30V dc at 10 50 mA Reset Input Terminals must be closed for a minimum of 0 25 seconds and not more than 2 0 seconds in order to guarantee a reset The switching device must be cap...

Страница 13: ...50 Double Ended QD Cordsets see page 19 for color code and pin outs 8 pin Female to 7 pin Male Mini Style For connection of 8 pin QD EZ SCREEN Receivers to MM TA 12B MSSI connector DES4 508C 8 DES4 5...

Страница 14: ...rsonnel from hazardous machinery Failure to properly install point of operation safeguarding on haz ardous machinery as instructed by the appropriate installation manu als can result in a dangerous co...

Страница 15: ...ons When a robot is active in Station A for example Station B safety light screen is muted Turret Table Application A Turret Table application is similar to the Robot Load Unload Station muting applic...

Страница 16: ...actuating control must be positioned outside the guarded area and provide the switch operator with a full unobstructed view of the entire guarded area and any associated hazards as the reset is perfor...

Страница 17: ...ee Specifications for environmental and operating conditions See Figure 3 1 for mounting hole information 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 MM TA 12B B A A B 2 1 STATUS MACHINE INTERFACE GUARDING SYSTEM...

Страница 18: ...led SW6 OFF ME functional Backdoor Time Out See Sections 1 14 and 1 15 SW7 OFF SW8 OFF 30 sec Mute on Power up Disabled SW7 OFF SW8 ON 60 sec Mute on Power up Disabled SW7 ON SW8 OFF OFF Mute on Power...

Страница 19: ...4V dc OVER Input B 0V dc OVER Input A Shield Earth Ground 2 3 4 5 1 NOTE Cable and wiring is low voltage running these wires along side power wires motor servo wires or other high voltage wiring can i...

Страница 20: ...A and ANSI to arrange install and operate the safety system so as to protect personnel and minimize the possibility of defeating the safeguard Indication that the safeguard is muted must be provided a...

Страница 21: ...less such functions are accomplished so that no single component failure prevents the removal of the hazard subsequent machine cycles are prevented until the failure is corrected and no hazard is crea...

Страница 22: ...24V dc and 0V dc The current draw of all devices must not exceed 500 mA 2 3 4 5 1 2 3 4 5 1 M1 and M3 M2 and M4 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 Carrier Basket Light Screen M1 M3 M2 M4 E R M1 M...

Страница 23: ...vices that have solid state OSSD outputs with handshake verification such as the EZ SCREEN systems USSI is also compatible with devices that have normally open hard contacts or relay outputs voltage f...

Страница 24: ...ing process control emergency stop switches gate switches safety mat controls and safety light screens NOTE If the USSI is not to be used pin 1 must be jumpered to pin 4 and pin 2 must be jumpered to...

Страница 25: ...ll be colored Yellow The actuator of a push button operated device shall be of the palm or mushroom head type The Emergency Stop actuator shall be a self latching type NOTE Some applications may have...

Страница 26: ...fety switches must not be used as a mechanical or end of travel stop The guard must be located an adequate distance from the danger zone so that the hazard has time to stop before the guard is opened...

Страница 27: ...om its home position and open the normally closed contact when the guard opens 2 3 4 5 1 Black Brown USSI Interlocked Gate Switch Hookup GATE Blue White Figure 3 13 USSI monitoring two positive openin...

Страница 28: ...requirements apparently satisfied the Module allows a reset This system is no longer redundant and if the second switch fails may result in an unsafe condition i e the accumulation of faults results i...

Страница 29: ...azardous area during a mute condition 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 MM TA 12B B B A A 2 1 STATUS MACHINE INTERFACE GUARDING SYSTEM AMP AUX USSI OVERRIDE BANNER ENGINEERING CORP USA 763 544 3164 RESE...

Страница 30: ...for a schedule of required checkouts For the initial checkout the MM TA 12B Muting Module and associated safety sys tems must be checked without power being available to the guarded machine Final inte...

Страница 31: ...utputs are ON and that a appears on the Diagnostic Display If not or if the Red status indicator begins to flash at any time refer to Section 5 for troubleshooting information Manual Reset Configurati...

Страница 32: ...l checks have been verified proceed to Section 3 7 If any of these checks fail do not attempt to use the system until the reason for the failure s is identified and corrected 3 7 OSSD and EDM Connecti...

Страница 33: ...s at left before making OSSD connections and interfacing the MM TA 12B Muting Module to the machine 6 5 4 3 8 7 1 2 6 5 4 3 8 7 1 2 24V dc 24V dc OR 0V dc Male Face View 8 Pin Mini Style Machine Contr...

Страница 34: ...e second con tact will arrest the hazard and prevent the next cycle from occurring Interfacing safety stop circuits must be wired so that the safety function can not be suspended overridden or defeate...

Страница 35: ...sources of power Routing interconnecting control wires in separate conduit runs or channels Routing interconnecting control wires with low voltage or neutral that can not result in energizing the haz...

Страница 36: ...12B Muting Module to any particular machine is solely the responsibility of the installer and end user WARNING OSSD Interfacing To ensure proper operation the MM TA 12B OSSD output parameters and mach...

Страница 37: ...odule to any particular machine is solely the responsibility of the installer and end user WARNING OSSD Interfacing To ensure proper operation the MM TA 12B OSSD output parameters and machine input pa...

Страница 38: ...uting Module to any particular machine is solely the responsibility of the installer and end user WARNING OSSD Interfacing To ensure proper operation the MM TA 12B OSSD output parameters and machine i...

Страница 39: ...aining and experience has successfully demonstrated the ability to solve prob lems relating to the subject matter and work 4 2 Periodic Checkout Requirements In addition to the checkouts that are perf...

Страница 40: ...ure 5 1 for a list of status codes and their meanings along with recommended corrective actions 5 3 Effects of Electrical Noise The Module is designed and manufactured to be highly resistant to electr...

Страница 41: ...not actuate within 3 seconds of the first device Check muting device operation Check wiring 52 Mute Enable Open Error ME input was open when a mute cycle was attempted Check Mute Enable wiring Check D...

Страница 42: ...description of the problem If they conclude that a component is defective they will issue an RMA Return Merchandise Authorization number for your paperwork and give you the proper shipping address 2 P...

Страница 43: ...formed by a Qualified Person See Section 6 4 6 2 Commissioning Checkout Perform this checkout procedure as part of Safeguarding System installation after the System has been interfaced to the guarded...

Страница 44: ...evice connected to the MSSI e g interrupt the defined area of a safety light screen Verify that MSSI Channel A and B and the Green status indicators go OFF In order reset the safeguard and then the Mo...

Страница 45: ...SI channel indicators are OFF and the Green status indicator is ON NOTE If the 30 or 60 second Backdoor Timer feature has been selected the Diagnostic Display will begin to count down otherwise a flas...

Страница 46: ...ppropriate standards 4 Verify that the Reset switch is mounted outside the guarded area out of reach of anyone inside the guarded area and that the key or other means of preventing inadvertent use is...

Страница 47: ...Checkout pro cedure 2 Examine and test the machine primary control elements MPCEs and any intermediary controls such as interface modules to verify that they are functioning correctly and are not in n...

Страница 48: ...Open OSSD Outputs Less than 3 seconds Normal mute cycle OSSD outputs remain ON One Way Muting Mute cycle drops out and the FSD outputs open due to M3 and M4 not closing before M1 or M2 open when the d...

Страница 49: ...r Horizontal Mounted Safety Light Screen M1 M2 Light Screen Receiver Light Screen Emitter Figure B 1 X Pattern Entry Exit system using two pairs of opposed mode photoelec tric muting devices Figure B...

Страница 50: ...ed in Exit applications to reduce the possibility of intentional defeat Hard Guarding A B C Whisker Limit Switches Transfer Line Figure B 4 Entry exit system using 4 whisker limit switches as muting d...

Страница 51: ...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...

Страница 52: ...roreflective photoelectrics as muting devices In this example the safety light screens are angled outwards see detail A This provides proper separation distance from the hazards created by the robot a...

Страница 53: ...f the table is the hazard the size and positioning of the targets must prevent muting while motion is taking place The top of the emitter and receiver are angled outwards to maintain proper sepa ratio...

Страница 54: ...uring 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 dr...

Страница 55: ...der Compacting Presses ANSI B11 17 Horizontal Extrusion Presses ANSI B11 18 Machinery and Machine Systems for the Processing of Coiled Strip Sheet and Plate ANSI B11 19 Performance Criteria for Safegu...

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