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 S AFETY M 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 CT 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 OF O 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 OF C 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 O 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 OF O 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
X2
32
24
Z2
X1B2
Z1
B1
Power
Fault
Actuate
31A2
2314
A1
13
Aux. Output
S11 X2
X1
S11
S12
B2
B1
Z2
Z1
24
23
32
31
14
13
A1
A2
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

MODES OF OPERATION
Start/ Restart Interlock Mo
11 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
5.2.START/ RESTART INTERLOCK MODE
By placing a jumper between terminals S11 and S12, (See Figure 5-
2)the unit is configured to Start/ Restart Interlock mode. When the
unit is configured to the Start/Restart Interlock mode, a reset push
button or key-switch must be wired to terminals Z1 and Z2. 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 remain in
the open state until a reset pushbutton or key-switch is closed across
terminals Z1 and Z2. When the reset is closed, the contacts will
transition to the closed state. 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 safety relays will not
transfer back to the closed state until the pushbutton or key-switch is
operated (Reset).
Table 5-1 Wiring Connections
X1, X2 Safety Edge Input
S11, S12 Install jumper for Start/Restart Interlock
Mode
B1, B2 Supply Voltage 24VAC/DC
Z1, Z2 Reset Pushbutton or Momentary Key-
switch
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 Start/Restart Interlock

Reset Pushbutton or Keyswitch
Factory Installed Jumper
Supply Voltage
115 VAC 50/60 HZ
Safety Output 2
Safety Output 1
AuxiliaryOutput
(MUST NOT
be used in the Safety Circuit)
Supply Voltage 24 VAC/DC Safety Edge Input
S12
X2
32
24
Z2
X1B2
Z1
B1
Power
Fault
Actuate
31A2
2314
A1
13
Aux. Output
S11
Connect for Start/Restart Interlock Mode
RESET Install this Jumper for Start/Restart Inerlock Mode
X2
X1
B2
B1
Z2
Z1
24
23
32
31
14
13
A2
A1
SCC-1224
MODES OF OPERATION
Start/ Restart Interlock Mode
12 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
Figure 5-2 Start/Restart Interlock Connection Diagram

To Machine
Control Safety Circuit
Power = 24 VDC
(34)(33)
MPCE 1
(34)(33)
MPCE 2
B2
B1
SCC
(22)(21)
MPCE 2
(14)(13)
MPCE 2
(14)(13)
MPCE 1
(24)(23)
SCC-2
(14)(13)
SCC-1
A2
A1 MPCE 1
A2A1 MPCE 2
(22)(21)
MPCE 1
MODES OF OPERATION
Start/ Restart Interlock Mode
13 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
Figure 5-3 MPCE Connection Diagram

SPECIFICATIONS
Maximum Response Time: <13 ms
14 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
6 S PECIFICATIONS
6.1. MAXIMUM RESPONSE TIME: <13 MS
Indicators:
— Green LED = Power On
— Yellow LED = Sensor Activated
— Red LED #1 = Safety Circuit Interrupted
— Yellow LED = Auxiliary Output Activated
6.2.ELECTRICAL
Supply Voltage:
115 VAC, 50Hz. 3.3 VA or
24 VDC, 1.5 W or
24 VAC, 2.1 VA
Input: 2-Wire, Safety Edge with 8.2 K ohm resistor
Safety Outputs:
2 Safety Outputs max. current and voltage
4A @ 250 VAC, 4 A @ 30VDC.
2 Safety Outputs current and voltage, electrical life at 2.5A @ 250 VAC,
2.5A @ 30VDC.
Auxiliary Output:
1 Aux. Output, max. current and voltage
4A @ 250 VAC, 4A @ 30VDC.
1 Aux. Output current and voltage, electrical life at 2.5A @ 250 VAC,
2.5A @ 30VDC.
*Auxiliary outputs must never to be used in the safety circuit.
Switching Times Safety Outputs
— Response time < 13 ms;
— Release time 1 s

S PECIFICA TIONS
Mechanical
15 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
Switching Times Aux Outputs:
* These contact must never to be used in the safety circuit.
— Response time 0.5 s
— Release time 3 s
6.3.MECHANICAL
Enclosure: Polyamide, Self extinguishing in accordance with UL 94-
V2
DIN Rail Mount Dimensions:
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99.0 mm (3.89in.)
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.5 mm (0.885in.)
Depth: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.0 mm (4.89in.)
Environmental Protection Rating: Housing: IP40; Terminal: IP20.
Operating Temperature: -20°C to +55°C
Approvals:
— Conforming to standards ISO 13849-1:2008
— Category 3
— Other approvals: CE, TUV
— Reliability Parameters:
PFHd [1/h]: 8.84e-8
PL d
MTTFd[a] = 329
DC[%] = 97

INSTALLATION
Mounting
16 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
7 I NSTALLATION
7.1.MOUNTING
The SCC-1224 controller is a DIN rail mounted controller.
7.2.CONNECTING THE SAFETY EDGES
7.2.1 WIRING
Caution must be used when installing, connecting and operating the SCC-
1224 and SCC-1224ND Safety Edge Controller and SCS and SGE Safety
Edge. Please observe all local electrical codes.
• When using 24 VDC, connect +24 VDC to terminal B1 and – 24VDC to
terminal B2.
• When using 115 VAC, connect to terminals A1 and A2.
•Connect the two wires from the Safety Edge to terminals X1 and X2 of the
Controller. Polarity does not have to be observed.
With the jumper wire is installed across terminals 14 and 23 (factory
default) both safety relays are used in the safety output circuit only one
machine primary control element (MPCE) is used. (See Figure 5-2
Start/Restart Interlock Connection Diagram on page 12) external fusing
(not to exceed 4.0 amps) is required to protect internal safety relay
contacts.
• With the jumper wire removed from terminals 14 and 23, each MPCE is
individually wired. (See Figure 5-2 Start/Restart Interlock Connection
Diagram on page 12) external fusing (not to exceed 4.0 amps) is required to
protect internal safety relay contacts.

INSTALLATION
Setup
17 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
7.2.2 CONNECTING SEVERAL SAFETY EDGE
WARNING! Safety Edges Input MUST NOT be switched in parallel.
The Safety Edge input X1, X2 can be used to connect one or several Safety
Edges. To do so, the individual Safety Edges are switched in series.
Safety Edge is suitable for connecting a maximum of 5 (total resistance
11.5K Ohm max. including terminal register 8.5K Ohm). Before
connecting them, the resistance value of the series connected the Safety
Edges must be measured.
X1
X2
2
Safety Edge 1
22
Safety Edge 2 Safety Edge 3
2
Figure 7-1 Connecting Several Safety Edges
7.3. SETUP
Only qualified persons should install safety contacts.
7.3.1 PREPARING ALUMINUM RAIL
Drill 1/8 in. countersunk holes in the aluminum rail every 12 in. for
mounting.
Figure 7-2 Aluminum Rail
7.3.2 MOUNTING THE ALUMINUM RAIL
Attach the aluminum-mounting rail to an even surface. The aluminum rail
should be mounted only with rivets or countersunk screws.
Figure 7-3 Mounting Aluminum Rail

INSTALLATION
Setup
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Original Instructions
7.3.3 WIRE ROUTING
If the wire is to be fed through the aluminum rail, drill a 5/16 hole in the
mounting rail. Be sure that the hole is properly de-burred to prevent
damage to the wire.
Figure 7-4 Feeding through Aluminum Rail
7.3.4 INSERTING THE PROFILE INTO ALUMINUM RAIL
(Models SCS2525N, SCS2540N, SCS3580, SGE365, SGEY365)
When inserting the rubber profile into the aluminum rail, liquid soap may
be sprayed on the Safety Edge to make it easier to install. Insert one side
first, then insert the other side. Once the soap has evaporated the strip is
securely fastened to the mounting rail.
Never use talcum, oils or other permanent lubrication agents.
Figure 7-5 Inserting the Rubber Profile

INSTALLATION
Setup
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Original Instructions
7.3.5 WARNING: INCORRECT MOUNTING METHOD
Do not attempt to push or pull the Safety Edge into the aluminum rail.
This can cause damage to the safety contact.
Figure 7-6 Incorrect Mounting Method
7.3.6 INSERTING THE PROFILE INTO ALUMINUM RAIL
(Models SGE1510,SGE125, SGE225, SGE245)
Figure 7-7 Safety Edges in position
Please Note: The SGE1510,SGE125, SGE225, SGE245 (shown
above), may be inserted into the track by sliding it into position, all
others Safety Edges must be installed as outlined in Section 7.3.4
above.

WARRANTY & ADDITIONAL
INFORMATION
20 Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
8 W ARRANTY & A DDITIONAL
I
NFORMATION
8.1.WARRANTY
Omron STI warrants its products to be free from defects of material and
workmanship and will, without charge, replace or repair any equipment
found defective upon inspection at its factory, provided the equipment has
been returned, transportation prepaid, within one year from the date of
installation and not to exceed 18 months from date of factory shipment.
The foregoing warranty is in lieu of and excludes all other warranties not
expressly set forth herein, whether expressed or implied by operation of
law or otherwise including but not limited to any implied warranties of
merchantability or fitness for a particular purpose. No representation or
warranty, express or implied, made by any sales representative, distributor,
or other agent or representative of Omron STI which is not specifically set
forth herein shall be binding upon Omron STI. Omron STI shall not be
liable for any incidental or consequential damages, losses or expenses
directly or indirectly arising from the sale, handling, improper application
or use of the goods or from any other cause relating thereto and Omron
STI’s liability hereunder, in any case, is expressly limited to repair or
replacement (at Omron Sti’s option) of goods.
Warranty is specifically at the factory or an Omron STI authorized service
location. Any on site service will be provided at the sole expense of the
Purchaser at standard field service rates.
All associated equipment must be protected by properly rated
electronic/electrical protection devices. Omron STI shall not be liable for
any damage due to improper engineering or installation by the purchaser or
third parties. Proper installation, operation and maintenance of the product
becomes the responsibility of the user upon receipt of the product.