Omron SCC-1224 User manual

Safety Edge Controllers

SCC-1224 & SCC-1224ND

Installation and Operating Manual

Original Instructions

2 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

SCC-1224 & SCC-1224ND

Safety Edge Controllers

Table of Contents

1 --Important Safety Message. . . . . . . . . . . . . . . . . . . . . . . . . . page 3

2 --Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6

3 --Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7

4 --Description of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7

5 --Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9

6 --Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14

7 --Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 16

8 --Warranty & Additional Information . . . . . . . . . . . . . . . . . . page 20

Appendix A --- Declaration of Conformity Information . . . . . page 22

IMPORTANT SAFETY MESSAGE

3 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

1 I

MPORTANT

AFETY

ESSAGE

The Safety Edge and Controller, when used together as a system, is an

emergency stop device when applied, installed, operated, and

maintained in accordance with the instructions in this manual. The

design and construction of this device is in accordance with CEN -

European Committee for Standardization for CEN member countries.

This organization provides general information and guidelines on the

proper methods for manufacturing this type of a device as it relates to

machine safeguarding.

Whether a specific machine or other application and Safety Edge and

Controller installation fully comply with ISO 13849-1 depends on

several items including: the proper application, installation,

maintenance and operation of the Safety Edge and Controller. These

items are the sole responsibility of the purchaser, installer and

employer.

The employer is also responsible for the selection and training of the

personnel necessary to properly install, operate and maintain the

machine and its safety systems. For example, Safety Edge and

Controller should be installed, checked out and maintained only by a

qualified person.

The user is that person(s) identified and designated by the employer as

being appropriately trained and qualified to perform a specific

procedure. Often the user is the installer, die setter, electrician,

maintenance personnel, supervisor, or foreman, etc., involved with the

setup, test and checkout of the machine and all safety devices.

IMPORTANT SAFETY MESSAGE

4 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

Definition of Qualified Person

A person who, by possession of a recognized degree in an applicable field

or a certificate of professional standing, or who by extensive knowledge,

training, and experience, has successfully demonstrated the ability to

solve or resolve problems relating to the subject matter and work.

Reference ASME B30.2-2001

The equipment operator must receive specific, proper training on exactly

which equipment is protected by the Safety Edge and Controller, the

equipment’s operating controls, warning signs and safety instructions. The

equipment operator must thoroughly understand and follow the company’s

safety rules and always use the safeguards and proper hand tools provided

by the employer. The equipment operator must notify management if the

equipment, tooling or safety devices are not operating properly. Never use

the equipment if it or the related safety equipment is not in proper working

order.

The following additional requirements must be met before using the Safety

Edge Controller E-stop system.

• The equipment on which the Safety Edge and Controller are installed must

be capable of stopping motion anywhere in its stroke or cycle.

• Do not use a Safety Edge and Controller:

— on any device with inconsistent stopping time or inadequate control

devices or mechanisms.

— where the environment, such as corrosive chemicals, may degrade the

efficiency of the Safety Edge and Controller.

• When a Safety Edge and Controller are installed on a machine or other

piece of equipment as an emergency stop device, the employer has the

responsibility to insure that all applicable federal, state and local Occupational

Safety and Health Act (OSHA) requirements and other such rules, codes and

regulations are satisfied.

• All safety-related machine control circuit elements, including

pneumatic, electric or hydraulic controls, must be control reliable as

defined by ANSI B11.19-2003, 3.14. All other machinery or equipment

must meet OSHA Standard 1910.212 on general machine guarding plus

any other applicable regulations, codes and standards.

IMPORTANT SAFETY MESSAGE

5 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

Do not use Safety Edge and Controller to initiate machine or

equipment motion.

• All brakes and other stopping mechanisms must be inspected

regularly to ensure proper working order. If the stop mechanisms and

associated controls are not working properly, the machine may not stop

safely even though the Safety Edge and Controller are functioning

properly.

• Only qualified personnel must install and test the Safety Edge and

Controller. Do not perform any test or repairs other than those outlined in

this manual. All electrical wiring must be installed in accordance with

local electrical codes and regulations.

• The user must follow all procedures in this manual for proper

operation of the Safety Edge and Controller.

The enforcement of these requirements is beyond Omron STI’s

control. The employer has the sole responsibility to follow the

preceding requirements and any procedures, conditions and

requirements specific to your machinery.

INTRODUCTION

2 I

NTRODU

ION

The Omron STI Safety Edge and Safety Edge Controller, when connected

together, provide the operator controls and switching electronics for an

emergency stop system that can cover large areas of a machine, door, gate,

etc. Applications include machinery, gates, fences, overhead and sliding

doors and other equipment where easy operator access to an emergency

stop actuator is needed.

Safety Edges are watertight and are impervious to a large number of

chemicals. They available in several profiles in lengths up to 6100mm in

10mm increments.

Six wiring configurations are available in all profiles.

1. “0” – configuration has no terminating resistor. This would be used as

the first segment where additional segments are connected in series.

2. “1” – configuration includes the resistor, which is wired external to the

Safety Edge. This allows for additional strips to be installed in the future if

required.

3. “2” – configuration includes the resistor enclosed and sealed within the

strip. This unit must always be the last or the only unit in the system the

resistor cannot be removed without compromising the integrity of the

system.

4. “3” – QD configuration has no terminating resistor. This would be used

as the ﬁrst segment where additional segments are connected in series. One

two wire lead exits each end of the profile one is fitted with a Female

Quick-disconnect and the other is fitted with a Male Quick-disconnect.

5. “4” – QD Configuration consist of one two wire lead with Male Quick-

disconnect and one resistor enclosed and sealed within the strip. This unit

must always be the last or the only unit in the system the resistor cannot be

removed without compromising the integrity of the system.

6. “5” – QD This configuration has no terminating resistor. This would be

used as the ﬁrst segment where additional segments are connected in

series. One two wire lead exits each end of the profile, one end has a two

wire connection and the other is fitted with a Female Quick-disconnect.

6Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

THEORY OF OPERATION

Safety Outputs (OSSD’s)

7 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

3 T

HEORY

PERATION

The Safety Edge Controller and Safety Edge combine to make up a

versatile and flexible emergency stop system for use in applications

where a machine operator or setup person must have easy, contiguous

access to an E-Stop actuator.

The Safety Edge is consists of an aluminum mounting rail, a Safety

Contact and a rubber profile into which the Safety Contact is inserted.

The SGE Series Edges have an integrated contact within the profile.

The Safety Edge has two wires connected at each end. In an

application where a single strip is used, two wires from one end are

connected to the Safety Edge Controller, the two wires on the other

end of the Safety Edge are factory connected to an 8.2 K Ohm resistor.

4 D

ESCRIPTION

ONTROL

4.1.SAFETY OUTPUTS (OSSD’S)

The positive-guided relay outputs of the SCC-1224 and SCC-1224ND

are referred to as safety outputs. They are turned off when an object or

person activates the Safety Edge. Two Normally Open contacts are

provided across terminals 13, 14 and 23, 24.

4.2.AUXILIARY OUTPUT SCC-1224

One Normally Open contact is provided across terminals 31, 32. This

contact closes for 1 to 3 seconds whenever the Safety Edge is

activated. These contacts must never be used in the safety circuit.

4.3.A

UXILIARY

UTPUT

SCC-1224ND

One Normally Open contact provided across terminals 31, 32. This

contact remains closed as long as the safety contacts are open. (When

the Safety Edge is activated). These contacts must never be used in the

safety circuit.

DESCRIPTION OF CONTROL

Indicators

8 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

4.4.INDICATORS

There are four LED lamps on the SCC-1224 and SCC-1224ND Safety

Edge Controller. Please see Figure 5-2 for the physical location of each

indicator. These LEDs are identified on the controller.

• Green LED Power

Indicates that main power has been applied to the controller. Upon removal

of power, the green light will go out and the controller and Safety Edge

becomes inactive and the safety contacts are opened.

• Yellow LED Actuate (Edge Activated)

Indicates that the Safety Edge is depressed. LED goes out upon removal of

pressure from the Safety Edge.

• Red LED Fault Indication

Indicates an open circuit in the Safety Edge such as a broken/cut wire, a

loose connection on terminals X1 and/or X2 on the controller terminal

block, a missing or incorrect value of the terminating resistor at the end of

the Safety Edge, or any damage to the Safety Edge that could cause an

open circuit between terminals X1 and X2.

• Yellow LED Auxiliary Output SCC-1224 (Delay to Open)

Indicates that the safety contact has been activated, causing the auxiliary

contact to close. These contacts close when the safety contact is activated

and are timed to open after about one to three (1 to 3) seconds. This could

be used to reverse a door so long as doing so does not present a hazard.

• Yellow LED Auxiliary Output SCC-1224ND (No Delay to Open)

Indicates that the safety contact has been activated, causing the auxiliary

contact to close. These contacts remain closed as long as the safety Edge is

activated.

MODES OF OPERATION

Automatic Start Mode (Factory Default)

9 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

5 M

ODES

PERATION

5.1.AUTOMATIC START MODE (FACTORY

DEFAULT)

There is only one configurable option, the factory default for the unit

is Automatic Start, (See Figure 5-1) when power is applied to the

controller, the controller will initiate a start up self-check. When the

self-check is complete the relays will close; pressing the Safety Edge

will cause the safety relays in the controller to transfer to the open

state. When pressure is removed from the Safety Edge, the relays will

transfer back to the closed state.

Table 5-1 Wiring Connections

X1, X2 Safety Edges input

S11, S12 Jumper removed for Automatic Start

B1, B2 Supply Voltage 24VAC/DC

Z1, Z2 Reset Pushbutton or Momentary Key-switch.

No connection required for automatic start.

A1, A2 Supply Voltage 115 VAC 50/60 Hz

31, 32 Auxiliary Output

- SCC-1224: Contacts close when Safety

Edge is operated and Delayed To Open after 1

to 3 seconds.

- SCC-1224ND: Contacts close when Safety

Edge is operated and remain closed until the

Safety Edge is returned to normal.

These contacts must never be used in the safety

circuit.

13, 14 Safety Output 1

23, 24 Safety Output 2

for Automatic Start

(No Connection for Auto Start)

Jumper for Start/Restart Interlock Mode

Reset Pushbutton or Keyswitch

(No Connection for Auto Start)

Factory Installed Jumper

Supply Voltage

115 VAC 50/60 HZ

Safety Output 2

Safety Output 1

Auxiliary Output

(MUST NOT

be used in the Safety Circuit)

Supply Voltage 24 VAC/DC Safety Edge Input

S12

X1B2

Power

Fault

Actuate

31A2

2314

Aux. Output

S11 X2

S11

S12

SCC-1224

MODES OF OPERATION

Automatic Start Mode (Factory Default)

10 Safety Edge Controllers Manual 99640-0010 Rev.P

Original Instructions

Figure 5-1 Automatic Start Connection Diagram

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