Banner MM-TA-12B User manual

Section Contents
Section 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3
Section 2 Specifications . . . . . . . . . . . . . . . . . . . . . . .Page 11
Section 3 System Installation . . . . . . . . . . . . . . . . . . . .Page 14
Section 4 Operating Instructions . . . . . . . . . . . . . . . . .Page 39
Section 5 Troubleshooting and Maintenance . . . . . . . .Page 40
Section 6 Checkout Procedures . . . . . . . . . . . . . . . . . .Page 43
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 48
Muting Module Features
• Compact housing meets IP65 requirements; can be
mounted inside or outside a control panel, near the
point of safeguarding.
• 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).
•Monitors two or four inputs to automatically sus-
pend the safety function of a safeguarding device or
system.
•Universal safety stop interface (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-operation or perime-
ter guarding.
•Diverse-redundant solid-state safety outputs.
•Status LEDs and two-digit Diagnostic Display indi-
cate module status.
•Eight Euro-style quick-disconnect I/O ports for
mute device inputs, mute lamp output, override,
USSI, and reset. Molded or field-wireable cable QDs
are available.
•Two Mini-style quick-disconnects for interfacing
with the safety system and machine control.
•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
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Muting Module MM-TA-12B
Instruction Manual

Table of Contents
MM-TA-12B Muting Module
Instruction Manual
Important ...
read this before proceeding!
In the United States, the functions that the
Banner MM-TA-12B Muting Module is intend-
ed 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 gov-
ernments. Whether or not any particular MM-
TA-12B Muting Module installation meets all
applicable requirements depends upon fac-
tors that are beyond the control of Banner
Engineering Corp. These factors include the
details of how the MM-TA-12B Muting
Module is applied, installed, wired, operated,
and maintained. It is the responsibility of the
installer and user to apply this MM-TA-12B
Muting Module in full compliance with all
applicable regulations and standards.
The Banner MM-TA-12B Muting Module can
guard against accidents only when it is prop-
erly 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 the MM-TA-
12B 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 informational material
on the use of safeguarding devices. The user
is referred 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 effective-
ness of any information provided, or the
appropriateness of the provided information
for a specific application. See Appendix C 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.Introduction ...................................................................... page 3
1.1 Overview ........................................................................................page 3
1.2 Operating Status LEDs and Diagnostic Display ............................ page 4
1.3 Automatic or Monitored Manual Reset Select .............................. page 4
1.4 Lockout Conditions ...................................................................... page 5
1.5 Control Reliability: Redundancy and Self-Checking ...................... page 5
1.6 Muteable Safety Stop Interface (MSSI) ........................................ page 6
1.7 Universal Safety Stop Interface (USSI) ..........................................page 6
1.8 OSSD Outputs .............................................................................. page 6
1.9 Auxiliary Output (Aux) ....................................................................page 6
1.10 External Device Monitoring (EDM) ................................................page 7
1.11 Mute Devices and Mute Inputs (M1-M4) ......................................page 7
1.12 Mute Enable (ME) ..........................................................................page 8
1.13 Mute Lamp Output (ML) ................................................................page 9
1.14 Backdoor Timer ..............................................................................page 9
1.15 Mute on Power-Up ........................................................................page 9
1.16 Override ........................................................................................page 10
1.17 One-Way/Two-Way Muting ..........................................................page 10
1.18 Designated and Qualified Persons................................................page 10
2.Specifications .................................................................... page 11
2.1 Accessories ................................................................................ page 13
3.System Installation.............................................................. page 14
3.1 Appropriate Application .............................................................. page 14
3.2 Installing the Module .................................................................. page 17
3.3 Muting Module Configuration .................................................... page 18
3.4 Connector Pinouts/Functions ...................................................... page 18
3.5 Installing Input Devices ................................................................page 20
3.6 Machine Interface Connection – Initial Hookup and Checkout .. page 30
3.7 Permanent Hookup...................................................................... page 32
3.8 Commissioning Checkout .......................................................... page 35
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............................................ page 40
5.1 Troubleshooting Lockout Conditions .......................................... page 40
5.2 Diagnostic Display........................................................................page 40
5.3 Effects of Electrical and Optical Noise ........................................ page 40
5.4 Repairs ........................................................................................ page 42
6.Periodic Checkout Procedures ................................................ page 43
6.1 Schedule of Checkouts ................................................................page 43
6.2 Commissioning Checkout .......................................................... page 43
6.3 Daily Checkout..............................................................................page 46
6.4 Semi-Annual Checkout .............................................................. page 47
Appendix
Appendix A, Mute Timing Sequences ........................................................page 48
Appendix B, Typical Muting Applications ..................................................page 49
Appendix C, Application Safety Standards ................................................page 55
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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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MM-TA-12B Muting Module
Instruction Manual
Introduction
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)
- Universal Safety Stop Interface (USSI)
- 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
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 panel. 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.
1.3 Automatic or Monitored Manual Reset Select
The selectable Automatic or Monitored Manual Reset pro-
vides flexibility for the user that 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.”
The configuration is selected via two banks of DIP switch-
es located inside the Module’s configuration port (see
Figures 1-2 and 3-2).
Monitored Manual Reset
Manual Reset is typically used in situations where the indi-
vidual 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 guard-
ing). 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 caus-
ing an unintended or automatic reset.
Upon power-up, when the Module has been configured for
MSSI Interface
(7-pin Mini-style
connector, to
Primary
Safeguard)
Mute
Lamp/AUX
USSI Input
Override Input
Reset Input
Status
Indicators
Earth Ground
Screw
Mute
Device
inputs
Configuration Port
•DIP Switch Banks A and B
•Diagnostic Display
User-writeable
snap-in label
Machine
Interface
(8-pin Mini-style
connector to
machine)
Figure 1-2. Muting Module features
NOTE: Green indicators are provided for each input to
verify an active state. A single indicator is provid-
ed for the Reset Input and for each of the Mute
Device inputs (M1 - M4). A green indicator is
provided for each channel for the MSSI, USSI,
and OVERRIDE inputs.
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Introduction
MM-TA-12B Muting Module
Instruction Manual
manual reset, for the OSSD outputs to turn ON, both the MSSI and the USSI
must both be active (closed) and a monitored manual reset must be accom-
plished. 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 MM-TA-12B Muting Module must be manually reset
after power-up, lockouts, and after the cycling of either the MSSI (not muted) or
the USSI. 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.
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 accom-
plished, and the MSSI and the USSI are active (closed). The OSSD outputs will
also turn ON after either interface is opened and then re-closed. 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 pre-
vent the initiation of hazardous motion while an individual is within the safe-
guarded space (e.g. point-of-operation guarding).
In either case, a manual reset must be performed to recover from 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 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 counter-
part which will perform the same function. The microprocessor-controlled Muting
Module is designed with diverse redundancy. Diverse-redundant components are
of different designs, and microprocessor programs used by them run from differ-
ent instruction sets.
Redundancy must be maintained for as long as the Muting Module is in opera-
tion. 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 5.1).
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Introduction
MM-TA-12B Muting Module
Instruction Manual
1.6 Muteable Safety Stop Interface (MSSI)
The Muteable Safety Stop Interface (MSSI) input is a specialized USSI that can
be muted during the non-hazardous portion of the machine cycle and provides
+24V dc supply power to the primary safety device that is to be muted.
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 with “handshake capability” (i.e., OSSDs), or two monitored
forced-guided relay outputs (i.e., FSDs) from an appropriate safety device. See
Section 2, Specifications, and Section 3.5.5 for complete information.
1.7 Universal Safety Stop Interface (USSI)
The Module has a provision for an additional Safety Stop Interface 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 3.5.5 for complete information.
1.8 OSSD Outputs
The Module has two solid-state safety outputs, labeled “OSSD1” and “OSSD2”
(see Figure 1-1). These safety 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-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.
To ensure Safety Category 4 (per ISO 13849-1/EN954-1), the OSSDs are compat-
ible with the “handshake” protocol of Banner Engineering safety devices with
Universal Safety Stop Interfaces (USSIs). This handshake verifies that the inter-
face of the two devices is capable of detecting certain unsafe failures that may
occur, such as a short-circuit to a secondary source of power or to the other
channel, high input resistance, or the loss of signal ground.
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 USSI interface opens, OSSD1 and OSSD2 will go OFF. See
Appendix A for timing diagrams.
1.9 Auxiliary Output (Aux)
The Auxiliary (Aux) monitoring PNP output is intended for non-safety related pur-
poses. The status of this auxiliary output is indicated by the green status LED.
See Section 3.5.3 for more information.
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Introduction
MM-TA-12B Muting Module
Instruction Manual
1.10 External Device Monitoring (EDM)
Two inputs are provided (see Figure 1.1) for monitoring the state of external
devices, such as MPCEs. These terminals are labeled “EDM1” and “EDM2” at the
Machine Interface connection. The Module’s EDM inputs can be configured in
three ways: one-channel, two-channel, or no monitoring (see Figure 3-2 for DIP
switch settings and Section 3.7.2 for external hookup). One- and two-channel
EDM is used when the OSSD outputs directly control the de-energizing of the
MPCEs or external devices.
• One-Channel Monitoring: a series connection of closed monitor contacts that
are forced-guided (or captive contact) from each device controlled by the
Muting Module. The monitor contacts should open within 200 milliseconds of
the OSSD outputs going ON (a GO condition) and should close within 200 mil-
liseconds of the OSSD outputs going OFF and remain closed (a STOP condi-
tion), or a lockout will occur (see Diagnostic Display, Section 5.2).
• Two-Channel Monitoring: an independent connection of closed monitor con-
tacts that are forced-guided (or captive contact) from each device controlled by
the Muting Module. 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 ms after the OSSD outputs go OFF or a lockout will occur (see
Diagnostic Display, Section 5.2).
• No Monitoring: uses the “EDM Disable” configuration with inputs EDM1 and
EDM2 left open (not connected). 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).
1.11 Mute Devices and Mute Inputs (M1 – M4)
Application of 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.
The mute then suspends the safeguarding function by ignoring the state of the
MSSI; this allows an object or person to pass through the defined area 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 minimum
object sensitivity.) 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 non-hazardous portion
of the machine cycle.
A muting application must be
designed so that no single compo-
nent failure can prevent the stop
command or allow subsequent
machine cycles until the failure is
corrected (per OSHA
1910.217(c)(3)(iii)(d), ANSI B11.19
section 4.2.3.3.7).
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Introduction
MM-TA-12B Muting Module
Instruction Manual
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 sit-
uation.
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 a NPN output, both of which fulfill the “muting device require-
ments” in Section 2. These contacts must close (conducting) 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-drive safety switches,
inductive proximity sensors, and “whisker” switches. (See Muting Device
Requirements, Section 3.5.2.1.)
1.12 Mute Enable (ME)
The Mute Enable input is a non-safety-rated input. When the input is 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 the DIP switches configured for “ME
Disable = ON”.
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.
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 sec-
ond 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).
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Introduction
MM-TA-12B Muting Module
Instruction Manual
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 can not, in any situation,
expose personnel to any hazard.
WARNING . . .
Mute Status Must Be
Readily Observable
Indication that the safety device is
muted must be provided and must
be readily observable (per ANSI
B11.19 section 4.2.3.3.3).
Failure of this indication should be
detectable and prevent the next
mute, or the operation of the indi-
cator should be verified at suitable
intervals.
Lamp Monitoring must be selected
if the System is to be used in a
country governed by EN regulation
(i.e., requiring the CE marking).
1.13 Mute Lamp Output (ML)
Most applications require that a lamp (or other means) be used to indicate when
the primary safety device (e.g., light screen) is muted; the control box provides
for this (see WARNING at left). This indication is selectable between a monitored
or a non-monitored output signal (NPN sinking). The monitored output will pre-
vent the initiation of a mute after an indicator failure is detected (current draw
falls below 10 mA or goes above 360 mA). If the muting function is to be used in
a country governed by EN regulation (requiring the CE mark), Lamp Monitoring
must be selected and the lamp used must meet applicable requirements (see
Section 3.5.3).
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 mut-
ing devices to initiate an inappropriate mute. It is also useful for detecting a com-
mon mode failure that would affect all mute devices in the application.
The timer begins when the second muting device makes the simultaneity require-
ment (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 out-
puts 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.
1.15 Mute on Power-Up
The Backdoor Timer DIP switch settings also enable or disable the Mute on
Power-Up function (see Figure 3-2). Mute Enable must be configured “functional”
and be closed to allow Mute on Power-Up. (See WARNING at left.) 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
USSI 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 USSI are
active (closed) will result in a mute cycle if all other conditions are satisfied.
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1.16 Override
The Override function allows the user to manually force the OSSD outputs ON for
10 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.
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 10
seconds, after which the Override input must be released for at least 3 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 USSI 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 NFPA79 (Section 9.15) and
IEC/EN60204-1 (Section 9.2.4).
The Override switches must be supervised and must prevent automatic opera-
tion. 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 prob-
lems relating to the implementation of this safety system.
Introduction
MM-TA-12B Muting Module
Instruction Manual
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 pri-
mary 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 stan-
dards (see Appendix C).
In addition, the requirements listed
in standards NFPA79 (Section 9.15)
or IEC/EN60204-1 (Section 9.2.4)
must be satisfied.
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Specifications
MM-TA-12B Muting Module
Instruction Manual
2. Specifications
MSSI Power Connections +24V dc ±15% @ 2.5A max. output (dependent on System power input). Resettable 2.5A fuse
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
Mute enable functional/disabled
System Power Requirements +24V dc ±15% @ 400 mA max (not including draw of the MSSI power, AUX, ML, M1-M4 and
OSSD connections); see Section 3.4 for total current draw calculation.
Supply Protection Circuitry All inputs and outputs are protected from short circuit to +24V dc or dc common.
Response Time Muteable Safety Stop Interfaces (MSSI) and the Universal Safety Stop Interfaces (USSI) are
less than or equal to 10ms.
Outputs
(see Warning on page 33)
Two diverse-redundant solid-state safety outputs: 24V dc, 0.5A sourcing OSSD (output signal
switching device). Compatible with Banner “Safety Handshake” protocol (see Section 1.6).
ON-State voltage: ≥Vin-1.5V dc Max. load resistance: 1,000 ohms
OFF-State voltage: 1.2V dc max. Max. load capacitance: 0.1 µF
Non-safety auxiliary output: PNP solid-state output, rated at +24V dc @ 250 mA.
Status Indicator LEDs 3 Status Indicator LEDs (Red, Green and Yellow): indicate Power ON/OFF, operating mode,
lockout, override, and OSSD status
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 condi-
tions and the amount of time, in seconds, remaining for the backdoor timer.
Inputs The MSSI and the USSI can be interfaced with external safety devices that have either hard contact
outputs or Banner OSSD safety outputs with Safety Handshake protocol (see Section 3.5.5).
When using the MSSI or USSI sourcing outputs, the relay outputs or hard contacts must be capa-
ble of switching 15 to 30V dc at 10-50 mA.
Operating Range for MSSI and USSI Inputs
OFF State: 0-3V, 0-1 mA
ON State: 12-30V, 20-50 mA
Muteable Safety Stop Interface (MSSI)
This input consists of two channels (MSSI-A and MSSI-B), and can be muted when the require-
ments 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.
(See Section 3.5.5 for further information.)
Universal Safety Stop Interface (USSI)
This input consists of two channels (USSI-A and USSI-B), and is always active. Any time either or
both channels open, the OSSD Outputs will go OFF. (See Section 3.5.5 for further information.)
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MM-TA-12B Muting Module
Instruction Manual
Specifications
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) 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 When Mute Enable is selected (functional), this input must have +24V dc applied in order to
start a mute; opening this input after mute has begun has no effect. If Mute Enable is disabled,
this input will be ignored and a mute cycle can occur regardless of the state of the mute
enable input. 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 require-
ment) and held closed during the 10-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 4 mounting holes, 5.5 mm dia. (0.19"); see Figure 3.1.
Vibration
Resistance
Vibration:
Frequency range: 10 to 55 Hz
Sweep rate: 1 octave/minute
Amplitude: 0.35 mm (interpreted as 0.70 mm or 0.028" peak to peak)
Number of sweeps: 20 sweeps (10 cycles) per axis, for 3 axes (no delay at resonance)
Bump:
Acceleration: 10 g
Duration of pulse: 16 ms
Number of bumps: 1000 +/- 10 for each axis, for 3 axes
Time between bumps: 2 seconds
Construction Size: See Figure 3.1 for dimensions
Housing: Glass-filled Nylon (Black)
Connectors: Nickel-plated brass
All circuitry epoxy-encapsulated.
Environmental Rating NEMA 4, 13; IEC IP65
MM-TA-12B Connections 1 each 8-pin Mini-style male
1 each 7-pin Mini-style female
8 each 5-pin Euro-style female (4-pin, if earth ground connection is not used)
Operating Conditions Temperature range: 0° to +50° C (+32° to 122° F)
Max. Relative Humidity: 95% (non-condensing)
Safety Category Safety Category 4 per ISO 13849-1 (EN954-1)
Certifications Approvals in process. Contact the factory for update.
Application Notes Mute Timing Sequences: see Appendix A
Typical Muting Applications: see Appendix B
Application Standards: see Appendix C
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Specifications
MM-TA-12B Muting Module
Instruction Manual
2.1 Accessories
Single-Ended QD Cordsets (see page 19 for color code and pin-outs)
7-pin Mini-Style 8-pin Mini-Style
Male connector for Female connector for
MSSI hookup, 20AWG Machine Interface hookup, 20AWG
QDS-715C 15' QDS-815C 15'
QDS-725C 25' QDS-825C 25'
QDS-750C 50' QDS-850C 50'
4-pin Euro-Style 4-pin Euro-Style
Male connector for Euro-style connections Female connector for connections to external devices,
on the MM-TA-12B, 22AWG. 22AWG. To be used with FIC-M12M4 or FIC-M12M4A connectors
(See below, order separately)
Straight Right Angle Straight Right Angle
MQDMC-406 6' MQDMC-406RA 6' MQDC-406 6' MQDC-406RA 6'
MQDMC-415 15' MQDMC-415RA 15' MQDC-415 15' MQDC-415RA 15'
MQDMC-430 30' MQDMC-430RA 30' MQDC-430 30' MQDC-430RA 30'
MQDMC-450 50' MQDMC-450RA 50' MQDC-450 50' MQDC-450RA 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'
DES4-515C 15'
DES4-525C 25'
4-pin Double-Ended Male/Female, Euro-Style
For connection between external devices with a 4-pin Euro-style male connector and the female Euro-style connectors
on the MM-TA-12B
Right Angle Male / Straight Female Straight Male / Straight Female
MQDEC-403RS 3' MQDEC-403SS 3'
MQDEC-406RS 6' MQDEC-406SS 6'
MQDEC-412RS 12' MQDEC-412SS 12'
MQDEC-420RS 20' MQDEC-420SS 20'
MQDEC-430RS 30' MQDEC-430SS 30'
MQDEC-450RS 50' MQDEC-450SS 50'
Field-Wireable Euro-Style Male QD Connectors
FIC-M12M4 male 4-pin, male threads, straight
FIC-M12M4A male 4-pin, male threads, right angle
FIC-M12M5 male 5-pin, male threads, straight
FIC-M12M5A male 5-pin, male threads, right angle
Solid-State LED-Based Mute Lamp
SSA-ML-W +24V dc, White Lens
SSA-ML-A +24V dc, Amber Lens
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System Installation
MM-TA-12B Muting Module
Instruction Manual
3. System Installation
3.1 Appropriate Application
The application of the MM-TA-12B Muting Module 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 only be used on machin-
ery 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 MM-TA-12B 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.
If there is any doubt about whether or not your machinery is compatible with the
MM-TA-12B Muting Module, contact Banner’s Application Engineers at the facto-
ry.
WARNING . . .
Stand-Alone Point-of-
Operation Guarding
The Muting Module is not a stand-
alone point-of-operation guarding
device, as defined by OSHA regu-
lations. 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 haz-
ardous machinery, as instructed by
the appropriate installation manu-
als, can result in a dangerous con-
dition which could lead to serious
injury or death.
WARNING . . .
Read this Section Carefully Before Installing the System
The Banner MM-TA-12B Muting Module is an accessory device that is typically used in conjunction with point-of-
operation machine guarding device. Its ability to perform this function depends upon the appropriateness of the application
and upon the MM-TA-12B 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 MM-TA-12B 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 techni-
cal 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 the Banner MM-TA-12B Muting Module is installed and interfaced to the
guarded machine by Qualified Persons in accordance with this manual and applicable safety regulations. A “Qualified Person”
is defined as “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
subject matter and work.”
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System Installation
MM-TA-12B Muting Module
Instruction Manual
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 instruc-
tions 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.
WARNING . . .
Muting Limitations
Muting is allowed only
during the non-hazardous portion
of the machine cycle (OSHA
1910.217(c)(3)(iii)(d), and ANSI
B11.19(1990) section 4.2.3.3.7).
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, Pass-
Through Hazards).
3.1.1 Muting Application Design
Following are typical applications where muting is used. See Appendix B for more
detailed information.
• Entry/Exit Applications. The muting devices are placed to 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. The muting devices must be 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. The “Station” muting 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. A “Turret Table” application is similar to the Robot
Load/Unload Station muting application, except that any movement of the table
ends the mute.
• Power Press Applications. The muting devices are placed so that the mute is
initiated only during the non-hazardous, opening portion of the cycle (typically
the machine upstroke).
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 USSI 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 recom-
mended unless it is not possible for an individual to enter the guarded area with-
out 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 safe-
guarding devices.
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System Installation
MM-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 mini-
mum object sensitivities, reach over, reach through, or other installation consid-
erations. 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 solu-
tion 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 pass-through hazard altogether, this may not
be possible due to cell or machine layout, machine capabilities, or other applica-
tion 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 supple-
mental 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 safeguard-
ed 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.
WARNING . . .
Pass-Through
Hazards, Presence-
Sensing
Safeguarding Devices, and
Muting
If the presence-sensing safeguard-
ing 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 eliminat-
ed. The individual must be sensed
continually while in the safeguard-
ed 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 safe-
guarded area and the hazardous
motion must stop immediately.
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System Installation
MM-TA-12B Muting Module
Instruction Manual
3.2 Installing the Module
The MM-TA-12B Muting Module may be installed within a panel or in a
NEMA 4/13 IP 65 environment. 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.
Mount the Module in a convenient location that is free from heavy impulse force
and high-amplitude vibration. The Module is designed to be mounted near the
safeguarding device to be muted. It can be also mounted inside a panel, and in
any orientation (see Specifications for environmental and operating conditions).
See Figure 3-1 for mounting hole information.
12345678 12345678
MM-TA-12B
B
A
A
B
2
1
STATUS
MACHINE
INTERFACE
GUARDING
SYSTEM
LAMP / AUXUSSIOVERRIDE
BANNER ENGINEERING CORP., USA
[phone]
RESET
M4M3M2M1
MODEL NO.
= Steady
= Flashing
Waiting
for Reset
Latched
Output ON
Override
Lockout
ONOFF
12345678
1 Manual / Auto
Reset
2 Non-Mon ML
3 1-Way / 2-Way
4 EDM Disable
5 1 / 2 CH EDM
6 ME Disable
7 Back Door
Timer
8 Back Door
Timer
See Diagnostic
Chart (Opposite
Side & in Manual
)
For prope
r
operat
i
on alway
s
follow the
instructions in the
manual.
WARNIN
G
C
220.0 mm
(8.66")
210.0 mm
(8.27")
27.0 mm
(1.06")
40.0 mm
(1.58")
60.0 mm
(2.36")
42.0 mm
(1.65")
4x ø 5.5 mm
(0.19")
Figure 3-1. Model MM-TA-12B Muting Module dimensions
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System Installation
MM-TA-12B Muting Module
Instruction Manual
3.3 Muting Module Configuration
The MM-TA-12B Muting Module should be configured before initial checkout and
use. Two banks of DIP switches are located under the access cover for the con-
figuration port. To access the DIP switches, unscrew the two captive, round-head
slot screws on either side of cover and carefully swing the cover open.
Because the MM-TA-12B 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.
12345678 12345678
Switch
Bank A
Switch
Bank B
Configuration Port
12345678
OFF
Factory
Default
Settings
ON
Non-Monitored Mute
Lamp Output
(See Section 1.13)
SW2 ON = Mute Lamp Output not monitored
SW2 OFF = Monitored Mute Lamp Output*
One-Way or
Two-Way Mute
Initiate Sequence
(See Section 1.17)
SW3 ON = Two-way muting*
SW3 OFF = One-way muting
EDM Disable
(See Section 1.10)
SW4 ON = EDM disabled
SW4 OFF = EDM functional*
One-Channel or
Two-Channel EDM
(See Section 1.10)
SW5 ON = Two-Channel EDM*
SW5 OFF = One-Channel EDM
Mute Enable Input
(See Section 1.12)
SW6 ON = ME disabled
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-up Disabled)
SW7 ON, SW8 ON = OFF (Mute on Power-up Enabled)
Figure 3-2. Muting Module manual configuration parameters
3.4 Connector Pin-outs and Functions
All electrical connections are made through either field-wireable or molded quick-
disconnect plugs. (See Specifications in Section 2 and Figure 3-3.)
Total Current Draw Calculation
Total current draw at the machine interface connector is the sum of the draw of
the Muting Module, the mute lamp, the AUX output and mute devices, and the
safeguarding device connected to the MSSI, if the power connections are used.
To calculate the total current draw, add the following:
ITOTAL = IMM + IAUX + IML + IMD + IMSSI
IMM = 400 mA (MM-TA-12B supply current) IAUX = X < 250 mA (auxiliary device current)
IML = X < 360 mA (mute lamp current) IMD = X < 500 mA (M1-M4 supply current)
IMSSI = X < 2500 mA (MSSI supply current)
WARNING . . .
Proper Electrical
Hookup
• Electrical hookup must be made
by Qualified Personnel and must
comply with NEC (National
Electrical Code) and local stan-
dards.
• 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.
NOTE: Switch numbers, e.g. “SW 1,” refer to
both switch banks A and B. *Factory default setting
Auto/Manual Reset
(See Section 1.3)
SW1 ON = Auto Reset
SW1 OFF = Manual Reset*
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MM-TA-12B Muting Module
Instruction Manual
System Installation
Machine Interface
Pin Color* Function
1
2
3
4
5
6
7
8
Brown
Orange/Black
Orange
White
Black
Blue
Green/Yellow
Violet
+24V dc
EDM#2
EDM#1
OSSD#2
OSSD#1
0V dc
Earth Ground
Mute Enable
6
5
43
8
71
2
Muteable Safety Stop Interface (MSSI)
Pin Color* Function
1
2
3
4
5
6
7
Gray/Black
White
Black
Blue
Brown
Gray/White
Green/Yellow
MSSI b
MSSI c
MSSI a
0V dc
+24V dc
MSSI d
Earth Ground
1
2
34
7
6
5
Mute Inputs (M1 – M4)
Pin Color* Function
1
2
3
4
5
Brown
White
Blue
Black
Shield**
+24V dc
NPN INPUT for M2/M4
(not connected M1/M3)
0V dc
PNP INPUT for M1/M3
(not connected M2/M4)
Shield, Earth Ground
2
3
4
5
1
Universal Safety Stop Interface (USSI)
Pin Color* Function
1
2
3
4
5
Brown
White
Blue
Black
Shield**
USSI b
USSI c
USSI d
USSI a
Shield, Earth Ground
2
3
4
5
1
Reset Input
Pin Color* Function
1
2
3
4
5
Brown
White
Blue
Black
Shield**
+24V dc
(not connected)
(not connected)
Reset Input
Shield, Earth Ground
2
3
4
5
1
Mute Lamp Output (ML) and Auxiliary PNP Output (AUX)
Pin Color* Function
1
2
3
4
5
Brown
White
Blue
Black
Shield**
+24V dc
Mute Lamp Output
0V dc
AUX PNP Output
Shield, Earth Ground
2
3
4
5
1
Override Input (OVER)
Pin Color* Function
1
2
3
4
5
Brown
White
Blue
Black
Shield**
+24V 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 inject noise into the safeguarding system. It is
good wiring practice (and may be required by code) to iso-
late wires from high-voltage wires.
* *Color code corresponds to Banner accessory QD cordsets list-
ed in Section 2.1.
**Pin 5 is for an optional connection for shield ground in electri-
cally noisy environments
NOTE: Cable length includes power (+24V dc) and return (0V dc) wires at 25°C, and is intended to ensure that adequate
power is available to the Module when the supply is operating at +24V dc-15%.
Maximum cable length (ft) versus total current draw (It) at the Machine Interface connector
0.5A 0.75A 1.0A 1.25A 1.5A 1.75A 2.0A 2.25A 2.5A
12 AWG 1500 1000 750 594 500 438 375 344 313
14 AWG 960 640 480 380 320 280 240 220 200
16 AWG 600 400 300 238 200 175 150 138 125
18 AWG 375 250 188 148 125 109 94 88 78
20 AWG 240 160 120 95 80 70 60 55 50
22 AWG 150 100 75 59 50 44 38 n.a. n.a.
Figure 3-3. Connector pin-outs (face views) for Module connectors
Male, Mini-Style Female, Mini-Style
Female, Euro-Style
Female, Euro-Style
Female, Euro-Style
Female, Euro-Style
Female, Euro-Style
3.25A3.0A
219250
140
160
88
100
55
63
3540
n.a.
n.a.
2.75A
281
180
113
70
45
n.a.
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System Installation
MM-TA-12B Muting Module
Instruction Manual
3.5 Installing Input Devices
3.5.1 Manual Reset Switch
The manual reset switch connects to pins 1 and 4 of the Reset connector (see
Figure 3-4).
Any reset switches must be located so that a reset is possible only from outside,
and in full view of, the hazardous area. The switch must also be out of reach
from within the safeguarded space. If any hazardous areas are out of view from
the switch location, additional means of safeguarding must be provided.
The switch should be protected from accidental or unintended actuation (e.g.,
through the use of rings or guards).
Using a key switch provides some level of personal control, because the key may
be removed. This will hinder a reset while the key is under the control of an indi-
vidual, but must not be relied upon solely to guard against accidental or unautho-
rized reset. Spare keys in the possession of others, or additional personnel enter-
ing the safeguarded area unnoticed may create a hazardous situation.
Reset Routine
The MM-TA-12B 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 then re-open the switch. Internal lockout condi-
tions also require a manual reset to return the system to RUN mode after the fail-
ure has been corrected and the input correctly cycled.
3.5.2 Muting Devices
The user is required by OSHA 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 and be readily observ-
able (ANSI B11.19 Section 4.2.3.3.3). Failure of this indication should be
detectable and prevent the Module from initiating a mute cycle. If this is not pos-
sible, the operation of the indicator should be verified at suitable intervals. Mute
devices must meet a 3-second simultaneity requirement to activate muting; that
is, devices in a pair must be activated within 3 seconds of one another.
3.5.2.1 General Muting Device Requirements
The muting devices (typically sensors or switches) must, at a minimum, comply
with the following requirements:
1) There must be a minimum of two independent hard-wired muting devices.
2) The muting devices must either both have normally open contacts; or one
device with a PNP output and one device with a NPN output, both of which
must fulfill the input requirements listed in the Specifications (Secton 2).
These contacts must close when the switch is actuated, and must open (or not
conduct) when the switch is not actuated or in a power OFF condition.
3) The activation of the inputs to the muting function must be from separate
WARNING . . .
Location of the
Manual Reset
Switch
The reset switch must be located
outside of, and not be accessible
from within, the area of dangerous
motion, and it must be positioned
so that the area of dangerous
motion may be observed by the
switch operator during the reset
operation.
Black
Brown
2
3
4
5
1
Reset Input, pin 4
(see Section 3.3)
Figure 3-4. Manual Reset switch con-
nections
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