Banner Interface Modules User Manual

IM-T-9A and IM-T-11A Interface Modules

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Interface modules for use with a primary safety device

• Interface Modules provide isolated safety output contacts for a primary safety
device (e.g., a safety light screen or safety module) which has solid-state or
hard contact outputs and external device monitoring (EDM) capability.

• Model IM-T-9A features three normally open 6 amp redundant-output chan­nels.

• Model IM-T-11A features two normally open redundant-output channels and
one normally closed non-safety auxiliary output channel, all rated at 6 amps.

• Normally closed outputs for connection to the primary safety device’s monitor­ing input.

• 24V dc operation

• 22.5 mm (0.9") DIN-rail-mountable housing

• Convenient plug-in terminal blocks

WARNING: Not a Stand-Alone Safeguarding Device
This Banner device is not a stand-alone point-of-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 install point-of-operation
guards on hazardous machinery can result in a dangerous condition which could lead to serious
injury or death.

Overview

Interface Modules IM-T-9A and IM-T-11A (the Interface Modules) operate on 24V dc inputs and provide isolated redundant output chan­nels for interfacing dc safety controls (such as safety light screens or other safety modules) to safety circuits. These modules can also be
used to switch low power capacity of safety controls with low current output rating (see hookup figures and the output configuration speci­fications).

The outputs of the Interface Module will follow the action of the safety outputs from the primary safety device which control it, within a 20
millisecond switching delay time. The Interface Module’s normally open outputs each are rated for up to 250V ac/dc at up to 6 amps.

The Interface Module offers a series connection of normally closed contacts (labeled Y1-Y2 and Y3-Y4) for monitoring by the external
device monitoring (EDM) function of the primary safety device. These forced-guided (mechanically-linked) contacts allow the safety de­vice to detect failures of the Interface Module, and at a minimum, must be monitored in applications requiring Control Reliability per
OSHA/ANSI or Category 3 or 4 per ISO13849-1.

Important... read this before proceeding

The user is responsible for satisfying all local, state, and national laws, rules, codes, and regulations relating to the use of this

product and its application. Banner Engineering Corp. has made every effort to provide complete application, installation, operation, and
maintenance instructions. Please direct any questions regarding the use or installation of this product to the factory applications depart­ment at the telephone numbers or address found at http://www.bannerengineering.com.

The user is responsible for making sure that all machine operators, maintenance personnel, electricians, and supervisors are thorough­ly familiar with and understand all instructions regarding the installation, maintenance, and use of this product, and with the machinery it
controls. The user and any personnel involved with the installation and use of this product must be thoroughly familiar with all applicable
standards, some of which are listed within the specifications. 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.

Applicable U.S. Standards

ANSI B11 Standards for Machine Tools Safety

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Machine

Safety

IM-T-9A

13

S1 S2 Y1

23 33

K1

K2

Y2

Ch.1

Ch.2

Y3 S3 S4

Y4 14 24 34

13

S1 S2 Y1

31 23

K1

K2

Y2

Ch.1

Ch.2

Y3 S3 S4

Y4 14 32 24

Machine

Safety

IM-T-11A

(S1/S2)

(S3/S4)

IM-T-9A IM-T-11A

K1 Energized

K2 Energized

IM-T-9A and IM-T-11A Interface Modules

Contact: Safety Director, AMT – The Association for Manufacturing Technology, 7901 Westpark Drive, McLean, VA 22102, Tel.:
703-893-2900

ANSI NFPA 79 Electrical Standard for Industrial Machinery

Contact: National Fire Protection Association, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269-9101, Tel.: [phone]

ANSI/RIA R15.06 Safety Requirements for Industrial Robots and Robot Systems

Contact: Robotic Industries Association, 900 Victors Way, P.O. Box 3724, Ann Arbor, MI 48106, Tel.: [phone]

Applicable International Standards

ISO 12100-1 & -2 (EN 292-1 & -2) Safety of Machinery – Basic Concepts, General Principles for Design

IEC 60204-1 Electrical Equipment of Machines Part 1: General Requirements

ISO 13849-1 (EN 954-1) Safety-Related Parts of Control Systems

Contact: Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112-5704, Tel.: [phone]

Certificate of Adequacy

This Safety Module datasheet satisfies the requirements of Machinery Directive 2006/42/EC, Section 1.7.4 — instructions.

Status Indicators

Two green indicator LEDs on the front of each Interface Module indicate the output status of internal relays K1 and K2.

Primary Safety Device Requirements

Interface Modules IM-T-9A and IM-T-11A are driven by one or two safety output channels of a primary safety device. For higher risk
applications, the design of the primary safety device must meet OSHA/ANSI control reliability requirements (U.S. applications) or
ISO/IEC/EN Category 3 or 4, Performance Level d or e, and SIL 2 or 3 requirements for European applications. IM-T-..A Modules must
be used only with primary safety devices that have External Device Monitoring capability (see wiring figures and the Warning Interfacing
MPCEs).

At a minimum, each output channel of the primary safety device must:

• Include one normally open forced-guided (mechanically linked) contact (FSD), or

• Include one solid-state 24V dc sourcing safety output (OSSD), and

• Be self-monitored to result in a safe (OFF) condition in the event of a failure, and

• Be capable of switching 50 mA @ 24V dc ± 15%.

NOTE: As OSSD solid-state outputs on primary safety devices very often are pulsed, it is possible that the relay coils will produce an
audible buzzing. This relay buzzing does not affect the function of the Interface Module, as long as the pulse width is below 500 μs
(microseconds) and the duty cycle (t1/ t2) is greater than 500.

Final Switching Device (FSD): The component of the machine’s safety-related control system that interrupts the circuit to the machine
primary control element (MPCE) when the output signal switching device (OSSD) goes to the OFF-state.

Output Signal Switching Device (OSSD): The component of the electro-sensitive protective equipment (ESPE) connected to the con­trol system of the machine which, when the sensing device is actuated during normal operation, responds by going to the OFF-state.

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Figure 1. Interface Module Status Indicators

t

1

1

2

2

+24V dc

0V dc

> 500

t
t

t
(500 µs max.)

IM-T-9A and IM-T-11A Interface Modules

Figure 2. Requirements for pulsed output signals from a primary safety device

WARNING: Not for use as a stand-alone safety module.

1. DO NOT connect E-stop switches, 2-hand control actuators/switches, safety interlock switches, or
similar devices directly to this Interface Module.

2. ALWAYS connect terminals Y1-Y2 and Y3-Y4 of this Interface Module to the monitoring input of the
primary safety device that controls it.

This Module does not have the circuitry required to perform a self-check. A single fault inside the unit or in
external devices (like switches or E-stop buttons) can go undetected and create an unsafe condition. Fail­ure to properly connect this Interface Module to a primary safety device with a monitoring function could
result in serious injury or death.

Mechanical Installation

The Safety Module must be installed inside an enclosure.
It is not designed for exposed wiring. It is the user’s responsibility to house the Safety Module in an enclosure with NEMA 3 (IEC IP54)
rating, or better. The Safety Module mounts directly to standard 35 mm DIN rail.

Heat Dissipation Considerations. For reliable operation, 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 the maximum operating temperature
stated in the Specifications. Methods to reduce heat build-up include venting, forced airflow (e.g., exhaust fans), adequate enclosure
exterior surface area, and spacing between modules and other sources of heat.

Electrical Installation

CAUTION: Shock Hazard

Always disconnect power from the Banner device and the guarded machine before making any connec­tions or replacing any component. Electrical installation and wiring must be made by qualified personnel
and must comply with the NEC (National Electrical Code), ANSI NFPA79 or IEC 60204-1 and -2, and all
applicable local standards and codes. Use extreme caution to avoid electrical shock at all times. Seri-

ous bodily injury or death could result.

WARNING: Safety Categories

The level of safety circuit integrity can be greatly impacted by the design and installation of the safety
devices and the means of interfacing of those devices. A risk assessment must be performed to deter-

mine the appropriate safety circuit integrity level or safety category as described by ISO 13849-1
(EN 954-1) to ensure that the expected risk reduction is achieved and that all relevant regulations
and standards are complied with.

CAUTION: When FSD1 switches +24V dc and FSD2 switches 0V dc (Figures 4 and 5), a short circuit

between the wires leading to S1, S2, S3 and S4 is detected immediately and K1 and K2 de-energize.
However, a short circuit can result in a high current through the FSD1 and FSD2 contacts, so the current
coming from the 24V dc supply connected to FSD1 and FSD2 must be fused or limited to 6 amps max.
Otherwise, damage to the primary safety device may result.

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Safety Output

Safety Output

EDM2

EDM1

+24V dc 0V dc

Y2

Y1

Y3

13 14

23 24

33 34

Machine

Control

Feedback (optional)

IM-T-9A

Primary
Safety
Device

Y4

S3

K2

S4

MPCE

1

MPCE

2

MPCE2

MPCE1

S2

K1

K2 K1

S1

EDM

+24V dc 0V dc

14

23 24

Feedback (optional)

IM-T-9A

Primary
Safety
Device

MPCE

1

MPCE

2

MPCE2 MPCE1

Y2

Y1

Y3

Y4

Safety
Output

Safety
Output

S3

K2

S4

S1

K1

S2

+

+

13

Machine

Control

Reset

33 34

K2 K1

IM-T-9A and IM-T-11A Interface Modules

It is not possible to give exact wiring instructions for a Safety Module that interfaces to a multitude of machine control configurations. The
following guidelines are general in nature.

The Safety Module has no delay function. Its output relay contacts open within 20 milliseconds after a safety input opens. This classifies
the Safety Module as functional stop "Category 0" control, as defined by ANSI NFPA 79 and IEC/EN 60204-1.

The inputs can be connected to (that meet the requirements for primary safety device above):

• A +24V dc solid-state (PNP) outputs in single-channel or dual-channel hookup configuration, or

• A +24V/0V dc source that is switched by hard/relay contacts in single-channel or dual-channel hookup configuration.

The dual-channel hookup configuration allows the primary safety device to detect certain failures and faults, such as short circuits, that
could result in a loss of the safety function. Two-channel control should be used whenever unsafe failure of the control wires cannot be
eliminated. The first circuit shown below can meet ISO 13849-1 Category 2, 3, or 4 requirements, depending on the safety rating and the
installation of the primary safety device.

The outputs of the primary safety device must, at minimum, comply with the requirements described. These outputs must be monitored
for failure by the primary safety device. In addition, a single output failure cannot prevent normal stopping action, and a successive cycle
cannot be initiated until the failure has been corrected.

Figure 3. Generalized hookup to a 2-channel primary safety

device with two hard-contact safety outputs (FSD1 and FSD2)

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and two monitoring inputs.

Figure 4. Generalized hookup to a 2-channel primary safety

device with two hard-contact safety outputs and one monitor-

ing contact feedback input.

Although this hookup shows model IM-T-9A, the hookup for model
IM-T-11A is identical.