Banner MMD-TA-11B Muting Modules User Manual

Muting Module

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

Features

• Compact, 67.5 mm DIN-mounted housing with
plug-in terminal blocks.

Instruction Manual

• For use with EZ-SCREEN
Device (OSSD) outputs or MINI-SCREEN®, MICRO­SCREEN®, 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

®

Output Signal Switching

Section Contents

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

Section 2 Components and Specifications

Section 3 System Installation

Section 4 Operating Instructions

Section 5 Troubleshooting and Maintenance

Section 6 Checkout Procedures

Appendix

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 45

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12

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Printed in USA 08/07 P/N 116390 rev. C

Table of Contents

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

Important ...

read this before proceeding!

In the United States, the functions that the
Banner MMD-TA-11B and MMD-TA-12B
Muting Modules are intended to perform are
regulated by the Occupational Safety and
Health Administration (OSHA). Outside of the
United States, these functions are regulated
by a variety of agencies, organizations, and
governments. Whether or not any particular
Muting Module installation meets all applicable
requirements depends upon factors that are
beyond the control of Banner Engineering
Corp. These factors include the details of
how the Muting Module is applied, installed,
wired, operated, and maintained. It is the

responsibility of the installer and user to
apply this Muting Module in full compliance
with all applicable regulations and
standards.

The Muting Module can guard against
accidents only when it is properly installed
and integrated into the machine, properly
operated, and properly maintained. Banner
Engineering Corp. has attempted to provide
complete application, installation, operation,
and maintenance instructions. In addition,
we suggest that any questions regarding
application or use of this Muting Module be
directed to the factory applications department
at the telephone number or addresses shown
on the back cover.

In addition to OSHA regulations, several other
organizations provide information about the
use of safeguarding devices. Refer to the
American National Standards Institute (ANSI),
the Robotics Industries Association (RIA), the
Association for Manufacturing Technology
(AMT), and others. Banner Engineering
Corp. makes no claim regarding a specific
recommendation of any organization, the
accuracy or effectiveness of any information
provided, or the appropriateness of the
provided information for a specific application.

See inside back cover for information
pertaining to applicable U.S., European,
and International standards and where to
acquire copies.

The 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. 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 Operating Status LEDs and Diagnostic Display .................................... page 2

1.3 Automatic or Monitored Manual Reset Select ....................................... page 3

1.4 Lockout Conditions ................................................................................ page 3

1.5 Control Reliability: Redundancy and Self-Checking .............................. page 3

1.6 Muteable Safety Stop Interface (MSSI) ................................................. page 4

1.7 Safety Stop Interface (SSI) .....................................................................page 4

1.8 OSSD Outputs ....................................................................................... page 4

1.9 Auxiliary Output (Aux) .............................................................................page 4

1.10 External Device Monitoring (EDM) .........................................................page 4

1.11 Mute Inputs (M1-M4) and Mute Devices ................................................page 5

1.12 Mute Enable (ME) ...................................................................................page 5

1.13 Mute Lamp Output (ML) .........................................................................page 6

1.14 Backdoor Timer .......................................................................................page 6

1.15 Mute on Power-Up ..................................................................................page 6

1.16 Override ..................................................................................................page 7

1.17 One-Way/Two-Way Muting .....................................................................page 7

1.18 Designated and Qualified Persons ......................................................... page 7

2. Components and Specifications ........................................................................ page 8

2.1 Specifications ..........................................................................................page 8

2.2 Accessories ......................................................................................... page 11

2.3 Dimensions ...........................................................................................page 11

3. System Installation ............................................................................................ page 12

3.1 Appropriate Application ........................................................................ page 12

3.2 Installing the Module ............................................................................ page 14

3.3 Muting Module Configuration ............................................................... page 15

3.4 Connection Terminals/Functions ......................................................... page 16

3.5 Installing Input Devices ......................................................................... page 17

3.6 Machine Interface – Initial Hookup and Checkout ............................. page 30

3.7 Permanent Hookup to the Guarded Machine...................................... page 31

3.8 Commissioning Checkout .................................................................... page 34

4. Operating Instructions ...................................................................................... page 39

4.1 Security Protocol ................................................................................. page 39

4.2 Periodic Checkout Requirements ........................................................ page 39

4.3 Normal Operation ................................................................................. page 39

5. Troubleshooting and Maintenance ..................................................................

5.1 Troubleshooting Lockout Conditions ................................................... page 40

5.2 Diagnostic Display ................................................................................page 40

5.3 Effects of Electrical Noise ................................................................... page 40

5.4 Repairs ................................................................................................. page 40

6. Periodic Checkout Procedures ........................................................................ page 42

6.1 Schedule of Checkouts ......................................................................... page 42

6.2 Commissioning Checkout ................................................................... page 42

6.3 Daily Checkout ......................................................................................page 44

6.4 Semi-Annual Checkout .......................................................................

Appendix

Appendix A, Mute Timing Sequences ................................................................. page 45

Appendix B, Typical Muting Applications ............................................................page 46

Glossary of Terms ..................................................................................................page 52

page 40

page 44

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

MMD-TA-..

Muting Module

Safety Light

Screen Control

CH B

+24V dc
0V dc

OSSD1*

OSSD2*

EDM1
EDM2

Mute
Enable

CH A

MSSI

Machine

Interface

Mute Devices

M1, M2, M3, M4

SSI

AUX*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

Instruction Manual

1. Overview

1.1 Introduction

Overview

The Banner MMD-TA-11B / MMD-TA-12B Muting Module (the
Module) is an accessory component of a safeguarding system,
which may incorporate such primary safeguards as safety light
screens, safety interlocked gates/guards, or other presence­sensing safeguarding devices (PSSDs). The Module allows the
machine to mute the primary safeguard by monitoring 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 safeguarding function of the primary safety
device during a non-hazardous portion of the machine cycle
where personnel 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.

Figure 1-1. Block diagram of a safeguarding system employing the Muting Module and a safety light screen (user-supplied) as a

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

primary safety device

P/N 116390 rev. C 1

Overview

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

Individual features discussed in the following sections are:

- Operating Status LEDs and Diagnostic Display

- Auto/manual reset

- Lockout conditions

- Control reliability

- Mutable Safety Stop Interface (MSSI)

- Safety Stop Interface (SSI)

- Output Signal Switching Device (OSSD) outputs

- Auxiliary (AUX) output

- External device monitoring (EDM)

- Mute devices and mute inputs (M1−M4)

- Mute enable input (ME)

- Mute lamp output (ML)

- Backdoor timer

- Mute on power-up

- Override

- One-way/two-way muting

Safety Stop Inputs (SSI)

1.2 Operating Status LEDs and Diagnostic Display

The Module has three Operating Status LEDs (one each red,
yellow and green), plus a 2-digit Diagnostic 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.

Active LEDs (green)

Muteable Safety Stop

Input(s) (MSSI)

Active LEDs (green)

2-Digit

Diagnostic Display

Red, Green,

Yellow Status

LEDs

NOTE: A green or yellow indicator is provided for each input to verify an active state. A green indicator is provided for the

Reset Input and for MSSI and SSI inputs. A yellow indicator is provided for each of the mute device (M1–M4) and
OVERRIDE inputs.

Figure 1-2. Muting Module features

Override Active LEDs
(yellow)

Muting Devices
Status LEDs (yellow)

Reset Input
(green)

2 P/N 116390 rev. C

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

Overview

1.3 Automatic or Monitored Manual Reset Select

The selectable Automatic or Monitored Manual Reset (X1−X2)
provides flexibility for the user who has applications in which
the operator is continually sensed, or in applications where the
operator can pass through and become clear of the sensing
field (see Section 3.1.4, “Pass-Through Hazards”) or other
applications requiring a manual reset.

The configuration is selected via two banks of DIP switches
located under the Module’s front cover (see Figures 1-2 and
3-2).

Monitored Manual Reset

Manual Reset is typically used in situations where the individual
can pass through a sensing field and become clear of a
safeguarding device, such that the device can no longer prevent
hazardous motion (e.g., perimeter guarding). The Module
“monitors” the input for two transitions: from open-to-closed, and
from closed-to-open within a certain time period. This prevents
the reset button from being tied down or failing in a closed
condition, and causing an unintended or automatic reset.

Upon power-up, when the Module has been configured for
manual reset, for the OSSD outputs to turn ON, both the MSSI
and the SSI must be active (closed) and a monitored manual
reset must be accomplished. The reset is accomplished by
closing the Reset input for a minimum of 1/4 second, but not
longer than 2 seconds and then re-opening the input. The OSSD
outputs will turn ON once the open-closed-open action occurs.

In this configuration, the Module must be manually reset after
power-up, lockouts, and after the cycling of either the MSSI (not
muted) or the SSI. The location for the manual reset device
(e.g., a normally open key switch) must comply with the warning
in Section 3.5.1 and refer to that section for further information
on key resets.

1.4 Lockout Conditions

A lockout condition of the Module will cause both OSSD outputs
to go OFF. A lockout condition is indicated by a flashing Red
status indicator and an error number displayed on the Diagnostic
Display.

A description of possible lockouts, their causes, troubleshooting
hints, and a Manual Reset routine are listed in Section 5.

1.5 Control Reliability: Redundancy and Self-Checking

Redundancy requires that Module circuit components be
“backed up” to the extent that, if the failure of a single
component will prevent effective machine stopping action when
needed, that component must have a redundant counterpart
which will perform the same function. The microprocessor­controlled Muting Module is designed with diverse redundancy.
Diverse-redundant components are of different designs, and
microprocessor programs used by them run from different
instruction sets.

Redundancy must be maintained for as long as the Muting
Module is in operation. Since a redundant system is no longer
redundant once a component has failed, the Module is designed
to be continuously self-checking. A component failure detected
by or within the self-checking system causes a “stop” signal
to be sent to the guarded machine and puts the Module into a
lockout condition.

Recovery from this type of lockout condition requires
replacement of the failed component (to restore redundancy) and
the appropriate reset procedure (see Section 3.5.1). Possible
causes are listed in Section 5. The Diagnostic Display is used to
diagnose causes of a lockout condition (Section 5).

Automatic Reset

Upon power-up, when the Module is configured for automatic
reset, the OSSD outputs will automatically turn ON once power
is applied, the self-test is accomplished, and the MSSI and the
SSI 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 within the safeguarded
space (e.g., point-of-operation guarding).

In either case, a manual reset must be performed to recover
from a lockout condition.

In Automatic Reset mode, input X1−X2 stays open.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

P/N 116390 rev. C 3

Overview

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

1.6 Muteable Safety Stop Interface (MSSI)

The Muteable Safety Stop Interface (MSSI) input (S11−S12,
S21−S22) is a specialized SSI that can be muted during the non­hazardous portion of the machine cycle.

The Module requires redundant input signals from the external
primary safeguard which is to be muted. These inputs typically
are either two Banner solid-state safety outputs or two monitored
forced-guided relay outputs from an appropriate safety device.
See Section 2, Specifications, and Section 3.5.6 for complete
information.

WARNING . . . Emergency Stop

Functions

Do not connect any Emergency Stop devices
to the MSSI Input; do not mute or bypass any Emergency
Stop device. ANSI NFPA79 and IEC/EN 60204-1 require

that the Emergency Stop function remain active at all times.

Muting or bypassing the safety outputs will render the
Emergency Stop function ineffective.

1.7 Safety (Protective) Stop Interface (SSI)

The Module has a provision for an additional Safety (Protective)
Stop Interface (X5−X6, X7−X8) to connect an optional device,
such as a supplemental safeguard, E-stop button, or safety
switch(es), to issue a stop command. This dual-channel interface
is similar to the MSSI, but is always functional, even when
the primary safety device is being muted. See Sections 2,
Specifications, and 3.5.6 for complete information.

1.8 OSSD Outputs

Model MMD-TA-12B has two solid-state safety outputs (Y5−Y6,
Y7−Y8); and model MMD-TA-11B has two normally open hard­contact safety outputs (13−14, 23−24), labeled “OSSD1” and
“OSSD2” (see Figure 1-1). The solid-state safety outputs are
actively monitored to detect short circuits to the supply voltage,
to each other, and to other sources of electrical energy. If a
failure is detected, the outputs will switch to an OFF-state. For
circuits requiring the highest level of safety and reliability, either
OSSD must be capable of stopping the motion of the guarded
machine in an emergency.

1.9 Auxiliary Output (Aux)

The Auxiliary (Aux) monitoring PNP (Z3−Z4) output on the
MMD-TA-12B and the parallel N.C. contact output on the -11B
are intended for non-safety related purposes. The status of
this auxiliary output is indicated by the green Status LED. See
Section 3.5.4 for more information.

1.10 External Device Monitoring (EDM)

Two inputs are provided (see Figures 3-24 to 3-28) for monitoring
the state of external devices, such as MPCEs. These terminals
are labeled “EDM1” (Y1−Y2) and “EDM2” (Y3−Y4). The Module’s
EDM inputs can be configured in three ways: one-channel, two­channel, or no monitoring (see Figure 3-2 for DIP switch settings
and Section 3.7.2 for external hookup). One- and two-channel
EDM are used when the OSSD outputs directly control the de­energizing of the MPCEs or external devices.

• One-Channel Monitoring: a series connection of closed

monitor contacts that are forced-guided (mechanically linked)
from each device controlled by the Muting Module. The monitor
contacts must be closed before the Module can be reset (either
Manual or Automatic). After a reset is executed and the safety
outputs (OSSDs) are closed, the status of the monitor contacts
is no longer monitored. However, the monitor contacts must be
closed within 200 milliseconds of the OSSD outputs going from
ON to OFF.

• Two-Channel Monitoring: an independent connection of

closed monitor contacts that are forced-guided (mechanically
linked) from each device controlled by the Muting Module. Both
EDM inputs must be closed before the Module can be reset and
the OSSDs can turn ON. While the OSSDs are ON, the inputs
may change state (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 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 (see Section 1.5,
Control Reliability).

During the muted portion of the machine cycle, the MSSI inputs
will be ignored and OSSD1 and OSSD2 will remain ON. During
other portions (not muted) of the cycle, if the MSSI either open
or go OFF, OSSD1 and OSSD2 will go OFF.

In any case, if the SSI interface opens, OSSD1 and OSSD2 will
go OFF. See Appendix A for timing diagrams.

4 P/N 116390 rev. C

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

Overview

1.11 Mute Inputs (M1−M4) and Mute Devices

The Muting Function

To mute the primary safeguard appropriately, the design of a
muting system must:

1. Identify the non-hazardous portion of the machine cycle,

2. Involve the selection of the proper muting devices, and

3. Include proper mounting and installation of those devices.

The Module can monitor and respond to redundant signals that
initiate the mute (M1: Z11–Z21; M2: Z12–Z22; M3: Z13–Z23;
M4: Z14–Z24). The mute then suspends the safeguarding
function by ignoring the state of the MSSI. This allows a person
to interrupt the defined area to load and/or unload parts or
an object to pass through the defined area of a safety light
screen, without generating a stop command. (This should not be
confused with blanking, which disables one or more beams in a
safety light screen, resulting in larger resolution.) See Appendix
A for example mute timing sequences.

The mute may be triggered by a variety of external devices. This
feature provides a variety of options (see Sections 3.5.2 − 3.5.3)
to tailor the System to the requirements of a specific application.

A pair of muting devices must be triggered simultaneously (within
3 seconds of one another). This reduces the chance of common
mode failures or defeat.

WARNING . . . Muting Limitations

Muting is allowed only during the non­hazardous portion of the machine cycle.

A muting application must be designed so that no single
component failure can prevent the stop command or allow
subsequent machine cycles until the failure is corrected

(per OSHA 1910.217(c)(3)(iii)(d), and ANSI B11.19).

Mute Devices

The beginning and end of a mute cycle must be triggered by
outputs from either pair of muting devices, depending on the
application. The mute device pairs both must have normally
open contacts, or have one device with a PNP output and one
device with an NPN output, both of which fulfill 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 condition can not occur.

Several types and combinations of mute devices can be used,
including, but not limited to: limit switches, photoelectric sensors,
positive-driven safety switches, inductive proximity sensors, and
“whisker” switches. (See Muting Device Requirements, Section

3.5.2.)

1.12 Mute Enable (ME)

The Mute Enable input (X13−X14) is a non-safety-rated input.
When the input is closed (terminals X13−X14 jumpered), the
Module will allow a mute condition to occur; opening this input
while the System is muted will have no effect. The Module
is factory-supplied with a jumper installed between terminals
X13−X14. To use the Mute Enable function, remove the jumper.

Typical uses for Mute Enable include:

• To allow the machine control logic to create a “window” for
muting to begin;

• To inhibit muting from occurring; or

• To reduce the chance of unauthorized or unintended
bypassing or defeat of the safety system.

WARNING . . . Mute Inputs Must Be

Redundant

It is not acceptable to use a single switch,
device, or relay with two N.O. contacts for the mute
inputs. This single device, with multiple outputs, may fail so
that the System is muted at an inappropriate time. This may
result in a hazardous situation.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

Simultaneity Timer Reset Function

The Mute Enable input can also be used to reset the simultaneity
timer of the mute inputs. If one input is active for longer than
three seconds before the second input becomes active, the
simultaneity timer will prevent a mute cycle from occurring. This
could be due to a normal stoppage of an assembly line that may
result in blocking one mute device and the simultaneity time
running out.

If the ME input is cycled (closed-open-closed) while one mute
input is active, the simultaneity timer is reset, and if the second
mute input becomes active within three seconds, a normal mute
cycle begins. The timing requirement for the closed-open-closed
is similar to the manual reset function. Initially, the input needs
to be active (closed) for longer than 1/4 second, then open for
longer than 1/4 second, but not longer than 2 seconds, and then
must reclose to reset the simultaneity timer. The function can
reset the timer only once per mute cycle (i.e., all mute inputs
M1−M4 must open before another reset can occur).

P/N 116390 rev. C 5

Overview

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

1.13 Mute Lamp Output (ML)

Some applications require that a lamp (or other means) be used
to indicate when the safety device (e.g., light screen) is muted;
the module provides for this (X3−X4; see Caution below). This
indication is selectable between a monitored or a non-monitored
output signal (NPN sinking). The monitored output will prevent
the initiation of a mute after an indicator failure is detected
(current draw falls below 10 mA or goes above 360 mA). If the
application requires compliance with UL 61496, Lamp Monitoring
must be selected and the lamp used must meet applicable
requirements (see Section 3.5.3).

CAUTION . . . Mute Status Must Be

Readily Observable

Indication that the safety device is muted

should be provided and be readily observable.
Failure of this indication should be detectable and prevent

the next mute, or the operation of the indicator should be
verified at suitable intervals.

Lamp Monitoring must be selected if the application requires

compliance with UL 61496.

1.14 Backdoor Timer

The Backdoor Timer allows the user to select a maximum
period of time that muting is allowed to occur. This feature
hinders the intentional defeat of the muting devices to initiate
an inappropriate mute. It is also useful for detecting a common
mode failure that would affect all mute devices in the application.

The timer begins when the second muting device makes the
simultaneity requirement (within 3 seconds of the first device),
and will allow a mute to continue for the predetermined time.
After the timer expires, the mute ends – no matter what the
signals from the mute devices indicate. If the MSSI is open,
the OSSD outputs will turn OFF and must be manually reset (if
Module is configured 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 OFF.

WARNING . . . Backdoor Timer

An infinite time for the backdoor timer (i.e.,

disabling) should be selected only if the
possibility of an inappropriate or unintended mute cycle is
minimized, as determined and allowed by the machine’s risk

assessment. It is the user’s responsibility to ensure that this
does not create a hazardous situation.

1.15 Mute on Power-Up

Mute Enable must be closed to allow Mute on Power-Up. (See
Warning below.) If selected, the Mute on Power-Up function will
initiate a mute when power is applied, the Mute Enable input is
closed, the MSSI inputs are active (closed), and either M1−M2 or
M3−M4 (but not all four) are closed.

If Auto Reset is configured, the Module allows 10 seconds for
the MSSI and SSI to become active (closed) to accommodate
systems that may not be immediately active at power-up.

If Manual Reset is configured, the first valid reset after the MSSI
and SSI are active (closed) will result in a mute cycle if all other
conditions are satisfied.

WARNING . . . Mute on Power-Up

The Mute on Power-Up function should be
used only in applications where:

• Muting the System (M1 and M2 closed) when power is

applied is required, and

• Using it must not, in any situation, expose personnel to

any hazard.

6 P/N 116390 rev. C

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

Overview

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 safety light screen after the mute ends (e.g., a car body on
a transfer line entering a work cell). The feature is intended to
allow the user to “jog” the part out of the defined area. The need
to perform an Override is indicated by a flashing mute lamp.

This input requires two normally open switches, both of which
must be closed within 3 seconds of each other. The Override
cycle will last a maximum of 30 seconds, after which the
Override input must be released for at least 0.5 seconds prior
to the next Override cycle. An Override can be initiated only
after tripping of the MSSI inputs causes the Module to latch its
OSSDs OFF.

NOTE: A stop command issued by the SSI cannot be overridden.

When Override is used, the following precautions must be taken:

- Prevent exposure to any hazard during an Override cycle,

- Provide a readily observable indication of an Override, and

- Provide supplemental safeguarding, per ANSI NFPA79 and
IEC/EN60204-1.

The Override switches must be supervised and must prevent
automatic operation. Also, one or more of the following must be
true:

- Motion is initiated by a hold-to-run or similar device,

- If a portable control station (e.g., an enabling device) with an
emergency stop device is used, motion may be initiated only
from that station,

- Motion, speed, or power of the machine is limited, or

- The machine’s range of motion is limited.

1.17 One-Way/Two-Way Muting

One-way (directional) muting allows the safeguard to be muted
only if mute devices are 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-directional) muting allows the safeguard to be
muted any time the actuation of M1−M2 or M3−M4 meets the
3-second simultaneity requirement. This allows the flow of
material from either direction (two-way material flow).

NOTE: When using four mute devices (M1, M2, M3 and M4), in

order to extend the mute until the light screen is clear,
the object must activate all four of the devices at one
time during the mute cycle.

1.18 Designated and Qualified Persons

For the purposes of this manual, the following definitions apply:
Designated Person: A person or persons identified and

designated in writing, by the employer, as being appropriately
trained and qualified to perform a specified checkout procedure.

Qualified Person: A person or persons who, by possession
of a recognized degree or certificate 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.

WARNING . . . Limit Use of Override

Function

The Override function is not for machine setup
or production; it is to be used only to clear the primary
safety device, such as if material becomes “stuck” in the
defined area of a safety light screen.

When Override is used, it is the user’s responsibility to install
and use it according to current standards (see inside back
cover).

In addition, the requirements listed in standards ANSI NFPA79
or IEC/EN60204-1 must be satisfied.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

P/N 116390 rev. C 7

Components and Specifications

MMD-TA-11B / MMD-TA-12B Muting Module

2. Components and Specifications

2.1 Specifications

System Power Requirements Model MMD-TA-11B: +24V dc ±15% @ 300 mA max (SELV/PELV)

Model MMD-TA-12B: +24V dc ±15% @ 250 mA max (SELV/PELV)

(not including draw of the MSSI power, AUX, ML, M1-M4 and OSSD connections).
The external voltage supply must be capable of buffering brief mains interruptions of 20 ms, as
specified in IEC/EN 60204-1.

Overvoltage Category III (IEC 60664-1)
Pollution Degree 2
Supply Protection Circuitry All inputs and outputs are protected from short circuit to +24V dc or dc common.
Response Time

(MSSI and SSI)
Safety Outputs

(see Warning on pages 32-34)

Model MMD-TA-11B: (relay output) 20 ms max.
Model MMD-TA-12B: (solid-state output) 10 ms max.

Model MMD-TA-11B:
2 normally open contact output channels and 1 normally closed auxiliary contact output
channel: Each normally open output channel is a series connection of contacts from two forced-

guided (positive-guided) relays, K1-K2. The normally closed AUX contact (non-safety) 31-32 is a
parallel connection of contacts from K1-K2.

Contacts: AgNi, 5 μm gold-plated
Low Current Rating:

Caution: The 5 μm gold-plated contacts allow the switching of low 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
Min. current: 5 mA ac/dc
Min. power: 5 mW (5 mVA)

High Current Rating:

If higher loads must be switched through one or more of the contacts, the minimum and
maximum values of the contact(s) changes to:

Min. voltage: 15V ac/dc
Min. current:
Min. power:

Mechanical life: 50,000,000 operations
Electrical life: 120,000 operations (typical, @ 144 W [1,380 VA] switched power, resistive load)

NOTE: Transient suppression is recommended when switching inductive loads. Install
suppressors across load. Never install suppressors across output contacts (see Warning,
page 35).

Model MMD-TA-12B:
2 diverse-redundant solid-state safety outputs: 24V dc, 0.5 A sourcing OSSD (output signal

switching device).

ON-State voltage: ≥ Vin–1.5V dc Cable resistance: 10 ohms maximum
OFF-State voltage: 1.2V dc max. (0–1.2V dc) OSSD test pulse width: < 100 µs
Max. load capacitance: 1.0 µF OSSD test pulse period: > 100 ms
Max. load inductance: 10 H Switching current: 0–0.5 A
Leakage current: 0.50 mA maximum

30 mA ac/dc Max. current: 6 A

0.45 W (0.45 VA) Max. power: 160 W (720 VA)

Max. voltage: 60V
Max. current: 300 mA
Max. power: 7 W (7 VA)

Max. voltage: 120V ac/dc

Instruction Manual

8 P/N 116390 rev. C

Specifications continued on page 9.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

Components and Specifications

2.1 Specifications, continued

Non-Safety Outputs Model MMD-TA-11B:

Aux. output 31–32 is a parallel connection of two N.C. contacts from internal relays K1 and K2.

Contact: AgNi, 5 µm gold-plated
Low Current Rating:

Caution: The 5 µm gold-plated contacts allow the switching of low current/low voltage. 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: 24V ac/dc
Min. Current: 5 mA ac/dc Max. Current: 250 mA ac/dc
Min. Power: 5 mW (5 mVA) Max. Power: 6 W (6VA)

High Current Rating:

For higher loads, the min. and max. values of the contact(s) changes to:
Min. Voltage: 15V ac/dc Max. Voltage: 24V ac/dc
Min. Current: 30 mA ac/dc Max. Current: 250 mA ac/dc
Min. Power: 0.45 W (0.45VA) Max. Power: 6 W (6VA)

Mechanical Life: 50,000,000 operations
Electrical Life: >10 x 106 cycles

Model MMD-TA-12B:

Z4–Z3 = Aux. 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 conditions

and the amount of time remaining for the backdoor timer.

Muting Lamp Output A monitored or non-monitored (selectable) sinking output. If monitoring has been selected, the

current draw must be 10 mA to 360 mA. Interconnect wire resistance < 30 ohms.

Maximum Switching Voltage: 30V dc
Maximum Switching Current: 360 mA
Minimum Switching Current: 10 mA
Saturation Voltage: ≤ 1.5V dc @ 10 mA; ≤ 5V dc @ 360 mA

Controls and Adjustments All configured on 2 redundant banks of DIP switches:

Manual/auto reset
One-way/two-way muting
Monitored/non-monitored mute lamp output
One-channel/two-channel/no EDM
Backdoor timer
Mute on power-up enable

Specifications continued on page 10.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

P/N 116390 rev. C 9

Components and Specifications

US

Instruction Manual

2.1 Specifications, continued

Inputs The MSSI and the SSI can be interfaced with external devices that have either hard contact

outputs or solid state sourcing outputs.
When connecting the MSSI (S11–S12, S21–S22) or SSI (X5–X6, X7–X8) inputs to relay outputs
or hard contacts, these contacts must be capable of switching 15–30V dc at 10–50 mA.

Operating Range for MSSI and SSI Inputs
OFF State: -3V to +5V, 0 to 2 mA
ON State: 15–30V, 10–50 mA

Muteable Safety Stop Interface (MSSI)

This input consists of two channels (MSSI-A and MSSI-B), and can be muted when the
requirements for a mute cycle have been met. When muted, the OSSDs remain ON, independent
of the MSSI status. If not muted, anytime either or both channels open, the OSSD outputs will go
OFF. Maximum external resistance per channel must not exceed 400 Ω. (See Section 3.5.6 for

further information.)

MMD-TA-11B / MMD-TA-12B Muting Module

Safety Stop Interface (SSI)

This input consists of two channels (SSI-A and SSI-B), and is always active. Any time either or
both channels open, the OSSD Outputs will go OFF. Maximum external resistance per channel
must not exceed 400 Ω. (See Section 3.5.6 for further information.)

External Device
Monitoring (EDM)

Two pairs of terminals are provided to monitor the state of external devices controlled by the
OSSD outputs. Each device must be capable of switching 15–30V dc at 10–50 mA.

Muting Device Inputs The muting devices work in pairs (M1 and M2, M3 and M4) and are required to be “closed”

within 3 seconds of each other (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 Inputs The two-channel inputs must be closed within 3 seconds of each other (simultaneity/synchronous

action requirement) and held closed during the 30-second Override. To initiate a subsequent
Override, open both channels, wait 3 seconds, and then re-close both channels (within
3 seconds). The switching devices must be capable 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 capable of switching 15–30V dc at
10–50 mA.

Mounting Mounts to standard 35 mm DIN-rail track.
Vibration Resistance 10 to 55 Hz @ 0.35 mm displacement per IEC 68-2-6.

Construction Polycarbonate housing. See Section 2.3 for dimensions.

Environmental Rating Rated NEMA 1; IEC IP20. Safety Module must be installed inside an enclosure rated NEMA 3

(IEC IP54) or better.

Connections Removable terminal blocks; see Figure 3-4 for terminal locations.
Operating Conditions Temperature range: 0° to +50° C (+32° to 122° F)

Max. Relative Humidity: 95% (non-condensing)
Heat Dissipation Considerations: See Section 3.2 “Installing the Module”.

Safety Ratings Category 4 (EN954-1); SIL 3 (IEC 61508); SIL CL 3 (IEC 62061);

Category 4, Performance Level (PL) e (ISO 13849-1)

Certifications* Category 4 (EN954-1)

SIL 3 (IEC 61508 & 62061)
Category 4, PL e (ISO 13849-1)

*Contact the factory for IEC 61508/62061 and ISO 13849-1 data.

10 P/N 116390 rev. C

ESPE
10GH

Specifications continued on page 11.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

NIPF
UL 1998
UL 61496

MMD-TA-11B / MMD-TA-12B Muting Module

67.5 mm (2.65")

86.0 mm
(3.38")

118.0 mm (4.65")

Instruction Manual

2.1 Specifications, continued

Application Notes Mute Timing Sequences: see Appendix A

Typical Muting Applications: see Appendix B
Application Standards: see inside back cover

2.2 Accessories

Solid-State LED-Based Mute Lamp

System Installation

SSA-ML-W

SSA-ML-A

M18RGR5PNQ

2.3 Dimensions

+24V dc, White lens, stack-light style on
12" pole (see data sheet p/n 62097)

+24V dc, Amber lens, stack-light style on
12" pole (see data sheet p/n 62097)

+24V dc, Red, Green, Amber indication,
M18 EZ-LIGHT™ with 4-pin Euro-style QD

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

P/N 116390 rev. C 11

System Installation

3. System Installation

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

3.1 Appropriate Application

The correct application of the MMD-TA-11B and -12B Muting
Modules is dependent on the type of machine and the
safeguards that are to be interfaced with the Module. The
Module is generally interfaced with safeguards that may be
used only on machinery that is capable of stopping motion
immediately upon receiving a stop signal and at any point in its
machine cycle. It is the user’s responsibility to verify whether the
safeguarding is appropriate for the application and is installed as
instructed by the appropriate installation manuals.

Safety Light Screens, Single/Multiple Beam Safety Systems,
or other Presence-Sensing Safeguarding Devices (PSSDs)
generally may not be used for the following:

• With single stroke (also called “full revolution”) clutched
machinery, as this type of machinery is incapable of stopping
immediately.

• On certain other types of machinery, including any machine
with inadequate or inconsistent stopping response time, or any
machine that ejects materials or component parts through the
defined area.

• In any environment likely to adversely affect the efficiency of
the safeguard(s) or the Muting Module. For example, corrosive
chemicals or fluids or unusually severe levels of smoke or dust,
if not controlled, may degrade the efficiency of a safety light
screen.

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 function depends upon the appropriateness
of the application and upon the Muting Module’s proper
mechanical and electrical installation and interfacing to
the machine to be guarded.

If all mounting, installation, interfacing, and checkout
procedures are not followed properly, the Muting Module
cannot provide the protection for which it was designed.

The user has the responsibility to ensure that all local, state,
and national laws, rules, codes, or regulations relating to the
installation and use of this control system in any particular
application are satisfied. Extreme care should be taken to
ensure that all legal requirements have been met and that all
technical installation and maintenance instructions contained
in this manual are followed. Read Section 3 (and its

subsections) of this manual carefully before installing the
system. Failure to follow these instructions could result in
serious bodily injury or death.

The user has the sole responsibility to ensure that this Muting
Module is installed and interfaced to the guarded machine by
Qualified Persons (see Section 1.18), in accordance with this
manual and applicable safety regulations.

If there is any doubt about whether or not your machinery is
compatible with this Muting Module, contact Banner’s Application
Engineers at the factory.

WARNING . . . Stand-Alone Point-of-

Operation Guarding

The Muting Module is not a stand-alone point­of-operation guarding device, as defined by

OSHA regulations. It is necessary to install point-of-operation

guarding devices, such as safety light screens and/or hard
guards, to protect personnel from hazardous machinery.

Failure to properly install point-of-operation safeguarding
on hazardous machinery, as instructed by the appropriate
installation manuals, can result in a dangerous condition
which could lead to serious injury or death.

12 P/N 116390 rev. C

WARNING . . . User Is Responsible

for Safe Application of this Product

The muting application examples described in
Appendix B depict generalized guarding situations. Every
guarding application has a unique set of requirements.

Extreme care is urged to ensure that all legal
requirements are met and that all installation instructions
are followed. In addition, any questions regarding
safeguarding should be directed to the factory
applications department at the number or addresses listed
on the front cover.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

System Installation

3.1.1 Muting Application Design

Following are typical applications where muting is used. See
Appendix B for more detailed information.

• Entry/Exit Applications.

allow the entry or exit of a pallet or cart of work materials to
enter or exit a workstation without tripping the safety light
screen, and without allowing the entrance of personnel into the
hazardous area.

• Home or Station Applications.

placed to mute the safety light screen only when a hazard does
not exist or is in another area — so that personnel are not
exposed to any hazard.

• Robot Load/Unload Station Application.

application uses independent safety light screen circuits,
each with its own muting circuit and sensors to protect work
locations. When a robot is active in Station A, for example,
Station B safety light screen is muted.

• Turret Table Application.

similar to the Robot Load/Unload Station muting application,
except that any movement of the table ends the mute.

• Power Press Applications.

so that the mute is initiated only during the non-hazardous,
opening portion of the cycle (typically the machine upstroke).

The muting devices are placed to

The muting devices must be

The “Station” muting

A “Turret Table” application is

The muting devices are placed

WARNING . . . Muting Limitations

Muting is allowed only during the non­hazardous portion of the machine cycle (OSHA

1910.217(c)(3)(iii)(d), and ANSI B11.19.

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 is muted, the
safeguarding function is suspended on all sides. It must not
be possible for an individual to enter the guarded area without
being detected and a stop command issued to the machine
control. This supplemental safeguarding is normally provided
by an additional device(s) that remains active while the Primary
Safeguard is muted and could be interfaced with the SSI
input. Therefore, mirrors are typically not allowed for muting
applications.

3.1.3 Multiple Presence-Sensing Safety Devices (PSSDs)

Muting multiple PSSDs or a PSSD with multiple sensing fields
is not recommended unless it is not possible for an individual
to enter the guarded area without being detected and a stop
command issued to the machine control. As with the use of
corner mirrors (see above), if multiple sensing fields are muted
the possibility exists that personnel could move through a muted
area or access point to enter the safeguarded area without being
detected.

For example, in an entry/exit application where a pallet initiates
the mute cycle by entering a cell, if both the entry and the exit
PSSDs are muted, it may be possible for an individual to access
the guarded area through the “exit” of the cell. An appropriate
solution would be to mute the entry and the exit with separate
safeguarding devices.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

WARNING . . . Guarding Multiple

Areas

DO NOT safeguard multiple areas, with mirrors
or multiple sensing fields, if personnel can enter 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, Pass­Through Hazards).

P/N 116390 rev. C 13

System Installation

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

3.1.4 Pass-Through Hazards

A “pass-through hazard” is associated with applications where
personnel may pass through a safeguard (at which point the
hazard stops or is removed), and then may continue into the
hazardous area. Subsequently, their presence is no longer
detected, and the safeguard can not prevent the start or restart
of the machine. The related danger is the unexpected start or
restart of the machine while personnel are within the hazardous
area.

In the use of safety light screens, a pass-through hazard
typically results from large separation/safety distances calculated
from long stopping times, large defined area resolution, reach
over, reach through, or other installation considerations. A
pass-through hazard can be generated with as little as 75 mm
(3") between the defined area and the machine frame or hard
guarding.

Reducing or Eliminating Pass-Through Hazards

Measures must be taken to eliminate or reduce pass-through
hazards. One solution is to ensure that personnel are
continually sensed while within the hazardous area. This can be
accomplished by using supplemental safeguarding, including:
safety mats, area scanners, and horizontally mounted safety
light screens. While it is recommended to eliminate the pass­through hazard altogether, this may not be possible due to cell
or machine layout, machine capabilities, or other application
considerations.

An alternate method is to ensure that once the safeguarding
device is tripped it will latch, and require a deliberate manual
action to reset. This type of supplemental safeguarding relies
upon the location of the reset switch as well as safe work
practices and procedures to prevent an unexpected start or
restart of the guarded machine.

The reset switch or 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 performed. The reset switch or actuating
control must not be reachable from within the guarded area and
must be protected (through the use of rings or guards) against
unauthorized or inadvertent operation. A key-actuated reset
switch provides some operator control, as it can be removed
by the operator and taken into the guarded area. However,
this does not prevent unauthorized or inadvertent resets due to
spare keys in the possession of others, or additional 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 location, additional supplemental
safeguarding must be used: at a minimum, visual and audible
warnings of machine start-up.

14 P/N 116390 rev. C

WARNING . . . Pass-Through Hazards,

Presence-Sensing Safeguarding
Devices, and Muting

If the presence-sensing safeguarding device
(PSSD) is guarding an application in which personnel
have access into the sensing area or field (for example,
a machine operator at the point of operation) while
the PSSD is muted, all pass-through hazards must be
eliminated. The individual must be sensed continually
while in the safeguarded area; this will prevent initiation
of a machine cycle if the mute ends while the individual is
within the hazardous area. See Appendix B for examples.

If the pass-through hazard cannot be eliminated, as in
entry/exit applications, the individual must be detected
entering the safeguarded area and the hazardous motion
must stop immediately.

3.2 Installing the Module

The Muting Module mounts to a standard 35 mm DIN-rail track.
The Module must be installed inside an enclosure rated NEMA 3
(IEC IP 54) or better. It can be mounted in any orientation. It
must be used with a properly installed and applied safeguard
(e.g., safety light screen, interlocked barrier guard). The user
must comply with all instructions contained within product
manuals and relevant regulations.

For reliable operation, the user must ensure that the operating
specifications are not exceeded. The enclosure must provide
adequate heat dissipation, so that the air closely surrounding the
Module does not exceed its maximum operating temperature.
Methods to reduce heat build-up include venting, forced air flow
(e.g., exhaust fans), adequate enclosure exterior surface area,
and spacing between Modules and other sources of heat. (See
Specifications, “Operating Conditions.”)

Mount the Module in a convenient location that is free from
heavy impulse force and high-amplitude vibration.

Electrostatic Discharge (ESD) can cause damage to electronic
equipment. To prevent this, follow proper ESD handling
practices such as:

• Wear an approved wrist strap or other approved grounding
products.

• Touch a grounded object before handling the Module.

See ANSI/ESD S20.20 for further information about managing
ESD.

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

3.3 Muting Module Configuration

The Muting Module should be configured before initial checkout
and use. Two banks of DIP switches are located under the front
cover. To access the DIP switches, use a screwdriver to gently
pry the cover loose from the Module housing.

Because the Module has redundant microprocessors, two DIP
switch banks (Bank A and Bank B) must be set identically.
Failure to set Bank A and Bank B identically will result in a
lockout condition. Power must be OFF when changing DIP
switch settings; changing settings while power is ON will cause a
lockout condition. The parameters to be manually configured are
shown in Figure 3-2.

Switch ON Position OFF Position

Switch
Bank A

Switch
Bank B

Auto/Manual

1

MSSI Reset

(See Section 1.3)

System InstallationSystem Installation

Figure 3-3. Use a screwdriver to gently pry the cover loose

from the Module housing.

MSSI auto reset MSSI manual reset*

Auto/Manual

2

SSI Reset

(See Section 1.3)

One-Way or Two-Way

3

Mute Initiate Sequence

(See Section 1.17)

One-Channel or

4

Two-Channel EDM

(See Section 1.10)

Factory Default Settings

ON

OFF

1 2 3 4 5 6 7 8

NOTE: Switch numbers, e.g. “SW 1,” refer to

both switch banks A and B.

Backdoor Time-Out

5–6

(See Section 1.14)

Monitored/Non-Monitored

7

Mute Lamp

(See Section 1.12)

8 Mute on Power-Up Mute on power-up No mute on power up*

* Factory default setting

Figure 3-2. Muting Module manual configuration parameters

SSI auto reset SSI manual reset*

Two-way muting One-way muting*

One-channel EDM Two-channel or no EDM*

5 ON, 6 ON 5 ON, 6 OFF

No backdoor
time-out (infinite)

5 OFF, 6 ON 5 OFF, 6 OFF

60-second backdoor
time-out

Mute lamp not
monitored

30-minute backdoor
time-out

30-second backdoor
time-out*

Mute lamp monitored*

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

P/N 116390 rev. C 15

System Installation

A1 X1 X2

S11 S12 S21 S22

Z21 M1 Z11

X5 X6 X7 X8

Z12 M2 Z22

Z13 M3 Z23

Z14 M4 Z24 X13 X14 A2

X9 X10 X11

X12

Y1 Y2 Y3 Y4 X3 X4 Z3 Z4 Y5 Y6 Y7

Y8

A1 X1 X2

S11 S12 S21 S22

Z21 M1 Z11

X5 X6 X7 X8

Z12 M2 Z22

Z13 M3 Z23

Z14 M4 Z24 X13 X14 A2

X9 X10 X11

X12

Y1 Y2 Y3 Y4 X3 X4 31 32 13 14 23

24

MMD-TA-11B / MMD-TA-12B Muting Module

Instruction Manual

3.4 Connection Terminals and Functions

All electrical connections are made through removable terminals
(see Figures 3-4a and 3-4b).

To disable the SSI, terminal X5 (SSIb) must be jumpered to
terminal X6 (SSIa), and terminal X7 (SSId) must be jumpered to
terminal X8 (SSIc) (factory default). Do not short Channel A to
Channel B.

All terminals are low-voltage,
except for those indicated
otherwise

Potential

High-Voltage

Terminals

Terminal Function Terminal Function Terminal Function

Z13 M3, 0V Z21 M1, 24V Z12 M2, 0V

M3 Muting 3 In (PNP) M1 Muting 1 In (PNP) M2 Muting 2 In (NPN)

Z23 M3, 24V Z11 M1, 0V Z22 M2, 24V

S11 MSSI b (ch A) X5 SSI b (ch A) X9

S12 MSSI a (ch A) X6 SSI a (ch A) X10

S21 MSSI d (ch B) X7 SSI d (ch B) X11

S22 MSSI c (ch B) X8 SSI c (ch B) X12

Y1 EDM 1 a Out (24V) X3 Mute Lamp Out (24V) 13 OSSD 1 a (Relay)

Y2 EDM 1 b In X4 Mute Lamp In 14 OSSD 1 b (Relay)

Y3 EDM 2 b In 31 AUX a (Relay) 23 OSSD 2 a (Relay)

Y4 EDM 2 a Out (24V) 32 AUX b (Relay) 24 OSSD 2 b (Relay)

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

WARNING . . . Proper Electrical

Hookup

Electrical hookup must be made by Qualified
Personnel and must comply with NEC (National Electrical
Code) and local standards.

Make no connections to the System other than those

described in Section 3 of this manual. Doing so could result
in serious injury or death.

Override a (ch A)*

Override b (ch A)*

Override c

(ch B)*

Override d

(ch B)*

*contacts only

Figure 3-4a. MMD-TA-11B terminal connection locations

All terminals are low-voltage

Figure 3-4b. MMD-TA-12B terminal connection locations

16 P/N 116390 rev. C

Terminal Function Terminal Function Terminal Function

Z13 M3, 0V Z21 M1, 24V Z12 M2, 0V

M3 Muting 3 In (PNP) M1 Muting 1 In (PNP) M2 Muting 2 In (NPN)

Z23 M3, 24V Z11 M1, 0V Z22 M2, 24V

S11 MSSI b (ch A) X5 SSI b (ch A) X9

S12 MSSI a (ch A) X6 SSI a (ch A) X10

S21 MSSI d (ch B) X7 SSI d (ch B) X11

S22 MSSI c (ch B) X8 SSI c (ch B) X12

Y1 EDM 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

Banner Engineering Corp. • Minneapolis, U.S.A.

www.bannerengineering.com • Tel: [phone]

Override a

Override b

Override c

Override d

*contacts only

(ch A)*

(ch A)*

(ch B)*

(ch B)*