Omron STI RM 3 Resource Module

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2016-05-25

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Safety Light Curtains

RM-3

RM3

For full product information, visit www.sti.com. Use the SpeedSpec Code or scan the QR Code for quick access to the specific web page.

Resource Module — Mute Module

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Type	4	safety	product,	when	used	in	combination	with	a	Type	4	safety	light	curtain	
Provides	muting	controls	for	up	to	two	light	curtains
Diagnostic	display
Solid-state	safety	outputs
100	mm	DIN	box	enclosure
Removable	terminal	blocks
DeviceNet	option
Compatible	with	MS4800,	F3SJ,	PA4600	and	OS32C
A	Rapid	Delivery	Product:	Select	models	are	available	for	shipment	today	or	within	3	to	5	days

Input Signals
•	 Input	Power	+24	VDC
•	 Two	independent	channels,	
each	channel	is	comprised	
of	one	light	curtain	and	up	to	
four	mute	sensors
•	 Start
•	 EDM	(MPCE	monitoring)
•	 Mute	enable

Output Signals
•	 Two	independent	PNP	safety	
outputs
•	 NPN	&	PNP	auxiliary	outputs
•	 Mute	lamp	drivers	(2)
•	 Mute	auxiliary	(NPN)
•	 Mute	armed	(NPN)

Indicators
•	 Diagnostic	display
•	 Machine	Run
•	 Machine	Stop
•	 Interlock
•	 OSSD	input	active	(light	
curtains)
•	 Sensor	input	active	
(sensors)
•	 Mute	Enable	active

US

C

US

Description

Specifications
	

Performance
Response	Time:

R

C

1	ms

Electrical
Outputs
	 Safety	Outputs:

Two	independent	625	mA	(max.)	current	sources	(PNP),	24	VDC

	 Auxiliary	Outputs:

Auxiliary	NPN	output:	100	mA	(max.)	current	sink,	30	VDC	max.	
Auxiliary	PNP	output:	500	mA	(max.)	current	source,	24	VDC

	 Mute	Lamp:

Two	(NPN)	output	with	40-300	mA,	30	VDC	max.*

	 Mute	Auxiliary:

NPN	output	100	mA	(max.),	30	VDC	max.

	 Mute-Armed:

NPN	output,	100	mA	(max.),	30	VDC	max.

	 MPCE	Monitor:

24	VDC,	50	mA	(sourced	by	RM-3)

The	RM-3	Mute	Module	can	
control	the	muting	functions	
of	two	light	curtains.	It	is	ideal	
for	Entry/Exit	applications.	
The	RM-3	provides	temporary,	
automatic	suspension	of	the	
safety	function(s).

Inputs
	 Input	Power:

24	VDC	±10%,	50	W	max.

	 Safety	Devices:

PNP	24	VDC	@	50	mA	machine	run,	0	V	machine	stop

	 Mute	Sensor:

PNP	24	VDC	(20	mA	consumption)**

	 Mute-Enable:

SPDT	key-operated	switch,	maintained	contacts

	 Start/Restart:

Either	N.O.	or	N.C.	momentary	contact	(10	mA	consumption)

Environmental
Enclosure	Rating:

IP20	(Unit	to	be	installed	in	enclosure	with	minimum	IP54)

Operating	Temperature:

0	to	55°C	(32	to		131°F)

Storage	Temperature:

-25	to	75°C	(-13	to	167°F)

Humidity:

95%	maximum,	non-condensing

Conformity/Approvals
Conformity	to	Standards:

Type	4	per	IEC	61496-1.	UL	listed.

Vibration:

In	accordance	with	IEC	68-2-6,	0.35	mm	displacement,	10	to	55	Hz

Shock:

In	accordance	with	IEC	68-2-29,	10	g,	16	msec.	pulses,	1000/axis

Mechanical
Enclosure:

IP20,	polycarbonate	DIN	rail	mount

Dimensions:

100	mm	W	x	75	mm	H	x	110	mm	D	(3.94	in.	W	x	2.95	in.	H	x	4.33	in.	D)

Specifications	are	subject	to	change	without	notice.

Select models are available for Rapid Delivery.
Visit this product on www.sti.com for details.

D66

www.sti.com/info

*	The	external	lamp	must	provide	
a	current	load	between	40	mA	and	
300	mA	for	the	lamp	monitoring	
circuit	to	sense	proper	operation	
of	the	mute	lamp.
**	When	photoelectric	sensors	
are	used,	they	need	to	alternate	
between	“dark	operate”	and	
“light	operate”	configuration.	
That	is	to	say	that	sensors	S1A,	
S1C	and	S2A,	S2C	need	to	have	
“dark-operate”	PNP	type	outputs.	
Sensors	S1B,	S1D	and	S2B,	S2D	
must	have	“light-operate”	outputs.

RM-3

Safety Light Curtains

Description (continued)
Muting
requirements	regarding	the	machine,	machine	controller	and	
safety	related	control	system.	Omron	provides	the	following	infor
mation	for	users	reference	only	and	makes	no	claim	regarding	the	
accuracy,	completeness	or	effectiveness	for	a	specific	application	
from	any	organization:
•	 Muting	of	the	light	curtain	is	only	permitted	during	the	nonhaz
ardous	portion	of	the	machine	cycle.
•	 If	the	machine	tool	has	reversing	capability	where	a	muting	haz
ard	is	possible,	the	control	system	shall	include	an	automatic	
means	through	which	muting	is	only	permitted	in	the	forward	
direction.
•	 A	muting	system	must	make	use	of	two,	three,	or	four	PNP	(24	
VDC	sourcing)	sensors.	A	single	sensor,	either	mechanical	or	
photoelectric,	cannot	be	used	in	place	of	the	required	multiple	
sensor	system.
•	 The	muting	position	(of	the	mute	signal	source)	shall	be	se
cured	against	unauthorized	adjustment	by	provision	of	special	
tools,	key	entry,	electronics	passwords	and	the	positioning	and	
the	fixing	of	associated	limit	switches.
The	above	requirements	were	compiled	from	the	following	
sources:	ANSI	B11.19-2010,	prEN692-1994	and	prEN50100-1
1993.	Other	standards	may	exist	for	your	specific	application.	
Contact	your	local	safety	authority	and	machine	supplier	for	
further	information.

The	term	“Muting”	is	defined	as	bypassing	the	protective	
function	of	the	safety	light	curtain	and	is	only	permitted	by	ANSI	
B11.19	during	the	non-hazardous	portion	of	the	machine	cycle.
Machine	controllers	which	initiate	muting	must	be	designed	for	
control	reliability.	The	ANSI	B11.19-2010	standard	explains	the	
muting	requirements:
“Muting	of	the	device	shall	be	permitted	during	the	nonhaz
ardous	portion	of	the	machine	cycle.	Muting	of	the	device	shall	
be	accomplished	in	such	a	manner	that	no	single	component	
failure	shall	prevent	the	normal	stop	command	and	shall	prevent	
subsequent	machine	cycles	until	the	failure	is	corrected.
If	the	machine	tool	has	reversing	capability	where	a	muting	
hazard	is	possible,	the	control	[system]	shall	include	an	automatic	
means	through	which	the	muting	is	only	permitted	in	the	forward	
direction.”	[Section	4.2.3.3.7]
Using Muting
Use	of	a	muting	function	requires	special	precautions	by	the	
safety	system	machine	controller,	installer,	operator	and	employer.	
The	proper	installation,	checkout,	and	operation	of	a	machine	and	
muting	system	is	critical	to	the	safe	operation	of	the	machine.	The	
following	is	only	a	partial	list	of	requirements	when	utilizing	muting	
and	is	not	intended	to	be	a	complete	guide	to	muting	standards.	
The	employer	must	contact	the	local	safety	authority	for	specific	

D

Terminal Orientation Reference
Power

Inputs

Outputs

30

31

1

Not Used

OSSD A

29

2

OSSD B

Channel 2 Inputs
26
27
28

3

MPCE Mon

0 VDC

4

Not Used

5

AUX PNP

6

OSSD 2A

7

OSSD 2B

Mu-en-hi

8

M-lamp-1

Mu-en-lo

9

AUX NPN

Not Used

10

M-lamp-2

+24 VDC

RM-3

Mute Outputs
11

S-2A

12

S-2B

13

Mu-Aux

14

Mu-Arm

15

Start

16

0 VDC

17

Mute Enable

OSSD 2A

OSSD 2B

S-2C

S-2D

OSSD 1A

OSSD 1B

S-1A

S-1B

S-1C

S-1D

WARNING SAFETY DEVICE

Run

Scientific Technologies Inc.
Fremont, CA, USA
www.sti.com 1/888/510-4357

Stop

Interlock

Mute Module

Do not defeat or bypass. Severe injury to personnel could result.
Not Used
32
33

34

Not Used

Not Used

Not Used

S-2C

S-2A

25

S-2B

24

S-2D

OSSD 1B

23

OSSD 1A

S-1A

S-1C

S-1B

19

S-1D

Channel 1 Inputs
20
21
22

18

Select models are available for Rapid Delivery.
Visit this product on www.sti.com for details.

www.sti.com/info

D67

RM-3

Safety Light Curtains

Dimensions

(mm/in.)
85.0
3.35

87.7
3.45

61.2
2.40

® RM-3 Mute Module

D

Bottom View

Slot
Ø4.4 X 5.7L
18.0 X 0.23

!

WARNING

Top View
99.9
3.93

75.0
2.95

SA LR90200
C

110.0
4.33

35.5
1.40

Back View

Front View

Right Side View

Ordering
Model No.

Description

RM-3

Resource	module,	24	VDC,	DIN-rail	mount

RM-3-RV

Resource	module,	24	VDC,	DIN-rail	mount	with	DeviceNet

MTLEDC-RM3

LED	clear	mute	lamp	kit

MTLEDA-RM3

LED	amber	mute	lamp	kit

MTINDC-RM3

Incandescent	clear	mute	lamp	kit

Select models are available for Rapid Delivery.
Visit this product on www.sti.com for details.

D68

www.sti.com/info

✎

For information on the
OS32C, see page B6

✎
✎

For information on the
PA4600, see page D37
For information on the
MS4800, see page D46

✎

For information on safety light
curtain accessories, see page D75



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Creator Tool                    : Adobe InDesign CS6 (Macintosh)
Format                          : application/pdf
Title                           : Omron STI RM-3
Description                     : Omron STI RM-3 Safety Light Curtains
Creator                         : Omron STI
Subject                         : Omron STI, RM-3, Safety Light Curtains, Resource Module - Mute Module, Type 4 safety product, when used in combination with a Type 4 safety light curtain, Provides muting controls for up to two light curtains, Diagnostic Display, Solid-state safety outputs
Producer                        : Adobe PDF Library 10.0.1
Trapped                         : False
Keywords                        : Omron STI..RM-3..Safety Light Curtains..Resource Module - Mute Module..Type 4 safety product, when used in combination with a Type 4 safety light curtain..Provides muting controls for up to two light curtains..Diagnostic Display..Solid-state safety outputs
Page Count                      : 3
Author                          : Omron STI
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