![Banner SC22-3 Скачать руководство пользователя страница 98](http://html1.mh-extra.com/html/banner/sc22-3/sc22-3_instruction-manual_471844098.webp)
96
P/N 133487
Banner Engineering Corp.
•
Minneapolis, U .S .A .
www .bannerengineering .com • Tel: 763 .544 .3164
SC22-3 Safety Controller
Instruction Manual
Appendix A
Examples of Muting Sensors and Switches
Photoelectric Sensors (Opposed Mode): Opposed-mode
sensors, which initiate the muted condition when the beam path
is blocked, should be configured for dark operate (DO) and have
open (non-conducting) output contacts in a power OFF condition .
Both the emitter and receiver from each pair should be
powered from the same source to reduce the possibility of
common mode failures.
Photoelectric Sensors (Polarized Retroreflective Mode): The
user must ensure that false “proxing” (activation due to shiny
or reflective surfaces) is not possible . Banner “LP” sensors with
linear polarization can greatly reduce or eliminate this effect .
Use a sensor configured for Light Operate (LO or N .O .) if
initiating a mute when the retroreflective target or tape is
detected (e .g ., home position) . Use a sensor configured for Dark
Operate (DO or N .C .) when a blocked beam path initiates the
muted condition (e .g ., entry/exit) . Both situations must have open
(non-conducting) output contacts in a power OFF condition .
Positive-Opening Safety Switches: Two (or four) independent
switches, each with a minimum of one closed safety contact to
initiate the mute cycle, are typically used . An application using
a single switch with a single actuator and two closed contacts
could result in an unsafe situation .
Inductive Proximity Sensors: Typically, inductive proximity
sensors are used to initiate a muted cycle when a metal surface
is detected . Due to excessive leakage current causing false ON
conditions, two-wire sensors are not to be used . Only three- or
four-wire sensors that have discrete PNP or hard-contact outputs
that are separate from the input power can be used .
WARNING . . .
Avoid Hazardous
Installations
Two or four independent position switches (at
M1–M2 or M3–M4) must be properly adjusted or positioned
so that they close only after the hazard no longer exists, and
open again when the cycle is complete or the hazard is again
present. If improperly adjusted or positioned, injury or death
could result.
The user has the responsibility to satisfy all local, state, and national
laws, rules, codes, and regulations relating to the use of safety
equipment in any particular application . It is extremely important to
be sure that all appropriate agency requirements have been met
and that all installation and maintenance instructions contained in
the appropriate manuals are followed .
A.11.2 SC22-3 Muting Device Hookup Options
The Controller provides configuration options for the muting
devices . One or two pairs of muting devices (typically sensors or
switches) must be used; these pairs are designated M1-M2 and
M3-M4 . In the circuit diagrams below, it is assumed that each
contact or output is being generated by an individual device
for category 3 and category 4.
Dual-Channel (2 terminals or 3 terminals): This circuit typically
can meet ISO 13849-1 category 2 or category 3 requirements
depending on the installation of the mute device(s) . Dual-channel
3-terminal hookups use pulse monitoring and can detect a
short circuit to another source of power . Both 2- and 3-terminal
hookup can detect a short between channels when the contacts
are open if the short is present longer than 2 seconds .
Muting Sensor Pair - Dual Channel
2-Ch, 2 Terminals
2-Ch, 3 Terminals
2-Ch, 4 Terminals
24V
2-Ch, 2 Terminals
2 PNP
Muting Sensor Pair - Dual Complementary
Complementary,
2 Terminals
Complementary,
3 Terminals
Complementary,
2 Terminals, 2 PNP
24V
20-Sept-06 Rev. D - Moved 24V, ON and OFF text closer to drawings.
21-Nov-06 Rev. E - Add + to 2-Ch, 3 and 4 Terminals and Complementary, 3 Terminals
10-Jan-07 Rev F - sign text to outlines
25-May-07 Rev G - Revised Dual Channel PNP and Complementary PNP
OFF
OFF
ON
OFF
Muting Sensor Pair - Dual Channel
2-Ch, 2 Terminals
2-Ch, 3 Terminals
2-Ch, 4 Terminals
24V
2-Ch, 2 Terminals
2 PNP
Muting Sensor Pair - Dual Complementary
Complementary,
2 Terminals
Complementary,
3 Terminals
Complementary,
2 Terminals, 2 PNP
24V
20-Sept-06 Rev. D - Moved 24V, ON and OFF text closer to drawings.
21-Nov-06 Rev. E - Add + to 2-Ch, 3 and 4 Terminals and Complementary, 3 Terminals
10-Jan-07 Rev F - sign text to outlines
25-May-07 Rev G - Revised Dual Channel PNP and Complementary PNP
OFF
OFF
ON
OFF
Dual-Channel (PNP device): This circuit can meet ISO 13849-1
category 2 or category 3 requirements depending on the
installation and the fault detection (e .g . short circuit) capabilities
of the mute device . The SC22-3 does not provide short circuit
detection in this configuration .
Muting Sensor Pair - Dual Channel
2-Ch, 2 Terminals
2-Ch, 3 Terminals
2-Ch, 4 Terminals
24V
2-Ch, 2 Terminals
2 PNP
Muting Sensor Pair - Dual Complementary
Complementary,
2 Terminals
Complementary,
3 Terminals
Complementary,
2 Terminals, 2 PNP
24V
20-Sept-06 Rev. D - Moved 24V, ON and OFF text closer to drawings.
21-Nov-06 Rev. E - Add + to 2-Ch, 3 and 4 Terminals and Complementary, 3 Terminals
10-Jan-07 Rev F - sign text to outlines
25-May-07 Rev G - Revised Dual Channel PNP and Complementary PNP
OFF
OFF
ON
OFF
Dual-Channel (4 terminals): This circuit can meet ISO 13849-1
category 2, 3, or 4 requirements depending on the installation of
the mute device(s) . This circuit can detect a short circuit between
channels or to another source of power .
Muting Sensor Pair - Dual Channel
2-Ch, 2 Terminals
2-Ch, 3 Terminals
2-Ch, 4 Terminals
24V
2-Ch, 2 Terminals
2 PNP
Muting Sensor Pair - Dual Complementary
Complementary,
2 Terminals
Complementary,
3 Terminals
Complementary,
2 Terminals, 2 PNP
24V
20-Sept-06 Rev. D - Moved 24V, ON and OFF text closer to drawings.
21-Nov-06 Rev. E - Add + to 2-Ch, 3 and 4 Terminals and Complementary, 3 Terminals
10-Jan-07 Rev F - sign text to outlines
25-May-07 Rev G - Revised Dual Channel PNP and Complementary PNP
OFF
OFF
ON
OFF
Complementary (2 terminals or 3 terminals): This circuit can
meet ISO 13849-1 category 2, 3, or 4 requirements depending
on the safety rating and the installation of the output device .
This circuit can detect a short circuit between channels . The 3-
terminal hookup can detect a short circuit to another source of
power, when the contact is closed .
Muting Sensor Pair - Dual Channel
2-Ch, 2 Terminals
2-Ch, 3 Terminals
2-Ch, 4 Terminals
24V
2-Ch, 2 Terminals
2 PNP
Muting Sensor Pair - Dual Complementary
Complementary,
2 Terminals
Complementary,
3 Terminals
Complementary,
2 Terminals, 2 PNP
24V
20-Sept-06 Rev. D - Moved 24V, ON and OFF text closer to drawings.
21-Nov-06 Rev. E - Add + to 2-Ch, 3 and 4 Terminals and Complementary, 3 Terminals
10-Jan-07 Rev F - sign text to outlines
25-May-07 Rev G - Revised Dual Channel PNP and Complementary PNP
OFF
OFF
ON
OFF
Muting Sensor Pair - Dual Channel
2-Ch, 2 Terminals
2-Ch, 3 Terminals
2-Ch, 4 Terminals
24V
2-Ch, 2 Terminals
2 PNP
Muting Sensor Pair - Dual Complementary
Complementary,
2 Terminals
Complementary,
3 Terminals
Complementary,
2 Terminals, 2 PNP
24V
20-Sept-06 Rev. D - Moved 24V, ON and OFF text closer to drawings.
21-Nov-06 Rev. E - Add + to 2-Ch, 3 and 4 Terminals and Complementary, 3 Terminals
10-Jan-07 Rev F - sign text to outlines
25-May-07 Rev G - Revised Dual Channel PNP and Complementary PNP
OFF
OFF
ON
OFF