Banner Safe Speed Monitoring Modules User Manual

SSM-FM-11A... Safe Speed Monitoring Modules

For over-speed, under-speed, and zero-speed detection

• Dual-channel redundancy

• Monitors 2 sensors with PNP outputs

• Monitors rotation (rpm) or linear movement

• LED indication for power, input 1 and input 2

• 24V ac/dc operation

• Feedback input monitors external machine control elements

• Two normally open (N.O.) and one normally closed (N.C.) output switching
channels for connection to control-reliable power interrupt circuits rated at
4A

• Stop Category 0, per ISO 13850 (EN 418)

• SIL Claimed Level (SIL CL) 3 to EN 62061

• Performance Level (PL) e / Category 3 to DIN EN ISO 13849-1

• DIN-rail mountable 45 mm wide housing with removable terminal blocks

• Energizes output relays (closes N.O. contacts), when speed drops below
set value, for "standstill" (under-speed) monitoring

• De-energizes output relays (opens N.O. contacts), when speed rises above
set value, for over-speed monitoring

Models Detectable Speed Range *

SSM-FM-11A10 5 to 10,500 ipm

SSM-FM-11A20 10 to 20,000 ipm

* The unit "ipm" (impulses per minute) may be equal to actual machine rpm, or may be a multiple, depending on the number of sensing
points used.

WARNING: Not a Stand-Alone Safeguarding Device
This Banner product 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.

P/N 140782_web
rev. C

8/22/2012

SSM-FM-11A... Safe Speed Monitoring Modules

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 shown 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 B11.0 Safety of Machinery, General Requirements, and Risk Assessment

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 62061 Functional Safety of Safety-Related Electrical, Electronic and Programmable Control Systems

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 document (p/n 140782) satisfies the requirements of Machinery Directive 2006/42/EC, Section 1.7.4 — instructions.

EC Declaration of Conformity

Date: 10/07/2009

We herewith declare that SSM-FM-11A10 and SSM-FM-11A20 Safe Speed Monitoring Modules for industrial control are in conformity
with the provisions of the Machinery Directive (Directive 98/37/EEC), and all essential Health and Safety Requirements have been met.

R. Eagle / Engineering Manager

Banner Engineering Corp. · 9714 Tenth Avenue North · Minneapolis, MN 55441-5019 USA

Download the complete EC Declaration of Conformity as a PDF file at www.bannerengineering.com/SSMmodule

2 www.bannerengineering.com - tel: [phone] P/N 140782_web

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1

3

2

SSM-FM-11A... Safe Speed Monitoring Modules

Overview

The SSM-FM-11A.. Safe Speed Monitoring Module ("the Module") can be used to monitor a rotating or laterally moving device's stopping,
starting, or speed. The Module requires signals from two independent sensors.

As a "standstill" (under-speed) monitor, the Module is often used in combination with hard guarding, access doors, and safety gates with
solenoid-lock or -unlock safety switches. When the speed of the monitored device drops below the set switch point (where its speed is no
longer considered dangerous), the Module closes its safety output contacts, applying power to the safety switch solenoid, releasing the
switch lock and enabling the operator to open the safety gate.

In over-speed monitor applications, the N.O. safety contacts are closed for operation (when the motor speed of the monitored device is
below the set switch point). When the speed exceeds the set value, indicating a too-high (dangerous) speed, the safety output contacts
open.

Indicators

1. Power ON (green)

Standstill / Under-speed
Monitoring Applications

Power is applied Power is applied

Over-speed Monitoring Ap­plications

when

2. Safety output
channel 1 ON

Standstill signal detected on
Input Channel 1

No over-speed detected on
Input Channel 1

(green) when

2. Safety output
channel 2 ON

Standstill signal detected on
Input Channel 2

No over-speed detected on
Input Channel 2

(green ) when

Figure 1. SSM-FM-11A... features and terminal

locations

Operation and Requirements

The Module is redundant and self-checking. It requires digital input signals from two independent input sensors (e.g., proximity switches)
to monitor for either standstill (under-speed) or over-speed conditions.

The input channels are factory pre-adjusted for simultaneity, and a simultaneity potentiometer (behind the Module front cover) is available
to further synchronize the input channel timing. Two banks of DIP switches are also located behind the front cover, for the purpose of
selecting the switch point range; a second potentiometer is used to fine-tune the switch point setting. See Figure, "Module adjustments."

P/N 140782_web
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www.bannerengineering.com - tel: [phone]

t

t

ds

Res

+

Res

t

ds

t

do

13-14
23-24

Stop

Stop

Stop

Motor Standstill

Motor ON

Supply ON

Standstill Detection

Overspeed Detection

Motor ON

Overspeed

S1s

0V

A1/A2 +24V

S1s: Output signal from sensor A

Motor

Speed

S2s

Motor Standstill

Motor Standstill

Motor ON

Motor ON

Motor OFF

Motor ON

S2s: Output signal from sensor B

t : Power-up delay

detection

t : Response after overspeed detection

do

ds

t : Response after standstill/underspeed

SSM-FM-11A... Safe Speed Monitoring Modules

Input Sensor Requirements

Both sensors must have 24V PNP outputs. Because the Module con­tinually monitors its connections to each sensor, each sensor must
draw a minimum current of 3 mA at all times (in either the OFF or ON
state). The Module will detect if any of the three wires from the sen­sor to the Module are interrupted. A broken sensor wire will always
result in an OFF condition.

• If the safety outputs are ON when a sensor wire breaks or is dis­connected, the related internal relay turns OFF and the safety
outputs open, signaling "No Standstill" and/or "Over-speed."

• If the safety outputs are OFF when a sensor wire breaks or is dis­connected, they can not turn ON (again signaling "No Standstill"
and/or "Over-speed") until the sensor connection is fixed.

Sensor Mounting Requirements: For safe and reliable operation,
the two input sensors must be mounted so that they are vibration­free, their signals are received simultaneously, and they don't influ­ence each other.

Figure 2. Functional Diagram

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; see Dimensions.

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

It is not possible to give exact wiring instructions for a Safety Module which 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 the time frame determined by the formula shown in the
Configuration section. This classifies the Safety Module as functional stop "Category 0", as defined by ANSI NFPA 79 and IEC/EN
60204-1.

Input Sensor Connections

The Module provides 24V dc and 0V to power the sensors through S1+/S1- and S2+/S2-. The sensor output signals are connected to
terminals S1s and S2s.

4 www.bannerengineering.com - tel: [phone] P/N 140782_web

rev. C

SSM-FM-11A10

or

SSM-FM-11A20

Sensor 2

24V ac/dc

0 V

K1

A

4 A max.

K2

A

K1

B

K2

B

K1

C

K2

C

Y1

MSC1

MSC
Monitor
Contacts
or Jumper

MSC2

+24V

0V

PNP

Signal

Out

13

S2+

S2s

S2-

Sensor 1

+24V

0V

PNP

Signal

Out

S1+

A2A1

S1s

S1-

14

24

31 32

Y2

23

See External Device
Monitoring

0V

0V

n.c.

K1

A

K2

A

K1

B

K2

B

K1

C

K2

C

13

14

23

24

33

34

ES-FA-9AA

SSM-FM-11A10

or

SSM-FM-11A20

Sensor 2

24V ac/dc

0V

K1

A

4A max.

K2

A

K1

B

K2

B

K1

C

K2

C

Machine

Control
Circuits

Y1

Unlock (3)

OK to Open

+24V

0V

PNP

Signal

Out

13

S2+

S2s

S2-

Sensor 1

+24V

0V

PNP

Signal

Out

S1+

A2A1

S1s

S1-

14

24

31 32

Y2

23

S12

S22

S21

24V ac/dc

Start

Function

(7)

A2

S34

OPEN

E1

E2

0V

0V

(5)

MPCE

1

MPCE

2

A1

S33

24V

ac/dc

(6)

MPCE1 MPCE2

Request to

Enter (2)

S11

Reset

(1)

M

MPCE1 MPCE2

(5)

(4)

SSM-FM-11A... Safe Speed Monitoring Modules

Reset and Startup Conditions

The Module works only in automatic reset mode. In order for the Module to
switch to RUN mode for normal operation, the Y1 - Y2 feedback input
must be closed during power-up.

The Module typically requires two to three seconds after power ON to
evaluate the signals from the two sensors and to decide if the number of
incoming signals/pulses is above or below the set switch point value. After
three seconds, if the Module detects a number of pulses per minute below
the set value, the relays energize and the output contacts turn ON, indicat­ing a standstill condition. If the machine being monitored and the Module
are powered up at the same time, the machine has only three seconds to
come up to speed, or the Module detects a standstill condition. If the ma­chine requires more than three seconds, power up the machine first, then
the Module, after the appropriate delay.

When each of the internal relays is energized, its corresponding LED turns
ON green. Both relay outputs activate only if both inputs reach the ena­bling conditions within approximately two seconds. If the signals are not
received within two seconds (e.g., because of a defective sensor or be­cause the channels did not switch simultaneously), the output contacts will
not turn ON, and power to the Module must be cycled.

Figure 3. Typical hookup to two sensors

Connection to the Machine to be Controlled

The machine hookup diagram shows a generic connection of the Safety Module's redundant output circuits to the Machine Primary Con­trol Elements MPCE1 and MPCE2. A Machine Primary Control Element is an electrically powered device, external to the Interface Mod­ule, which stops the machinery being controlled by immediately removing electrical power from the machine and (when necessary) by
applying braking to dangerous motion.

NOTES:

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Figure 4. Machine connection with an interlocked guard with guard locking and another safety module

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