Force guided contact mechanism
(EN50205 Type A TÜV approved)
Compact and Slim
Compact size enables size reduction of PC board.
4-pole type: 13W × 40D × 24H mm
6-pole type: 13W × 50D × 24H mm
Fast Response Time
Response time of 8 ms.
Ensures safety by turning the load off quickly.
(200 m/s2 minimum)
Socket Variation
PC board mount and DIN rail mount sockets are available.
High Shock Resistance
High shock resistant suitable for use in machine tools and in
environments subjected to vibration and shocks.
Clear Visiblilty
Available with a built-in LED.
PC board mountDIN rail mount
What is a force guided relay?
Relays used in safety circuits to detect failures such as contact welding and damage to the
contact spring.
Contacts of a force guided relay are forced to open and
close by a guide connected to the armature.
Due to requirements of standard EN50205, a force guided
relay has independent NO and NC contacts. If a NO contact welds, a NC contact will not close even when the relay
coil is turned off (de-energized) and must maintain a gap of
at least 0.5 mm. Furthermore, if a NC contact welds, a NO
contact will not close when the relay is turned on (energized) and must maintain a gap of at least 0.5 mm.
(General-purpose relays do not have the above characteristics.)
Guide
NO contact
NC contact
Applications
Force guided relays are used in safety circuits in combination with interlock switches, light curtains, and emergency stop switches to control
outputs.
They can also be used to expand outputs for safety relay modules and
safety controllers.
Output expansion for safety relay modules and safety controllers
Built-in LED indicator available.•
Fast response time (8 ms maximum).•
High shock resistance (200 m/s•
Finger-safe DIN rail mount socket and PC board •
Note 1: For relays with LED indicator, the rated current increases by approx. 2 mA.
Note 2: Maximum continuous applied voltage is the maximum voltage that can be applied to relay coils.
EC Low Voltage Directive
(DIN rail mount sockets only)
Maximum Continuous
Applied Voltage (Note 2)
Power
Consumption
Approx. 0.36W
Approx. 0.5W
3
4
RF1VForce Guided Relays / SF1V Relay Sockets
6.5 min.
4.0 max.
6.3 max.
3.0 min.
(090319)
Relay Specifications
Number of Poles4-pole6-pole
ContactConguration2NO-2NC3NO-1NC4NO-2NC5NO-1NC3NO-3NC
Contact Resistance (initial value) (Note 1)100mΩmaximum
Contact MaterialAgSnO
Rated Load (resistive load)6A 250V AC, 6A 30V DC
Allowable Switching Power (resistive load)1500 VA, 180W
Allowable Switching Voltage250V AC, 30V DC
Allowable Switching Current6A
Minimum Applicable Load (Note 2)5V DC, 1 mA (reference value)
Power Consumption (approx.)0.36W0.5W
Insulation Resistance
Between contact and coil4000V AC, 1 minute
Dielectric
Strength
Operate Time (at 20°C)20 ms maximum (at the rated coil voltage, excluding contact bounce time)
Response Time (at 20°C) (Note 3)
Release Time (at 20°C)20 ms maximum (at the rated coil voltage, excluding contact bounce time)
Vibration
Resistance
Shock
Resistance
Electrical Life
Mechanical Life10 million operations minimum (operating frequency 10,800 operations per hour)
Operating Temperature (Note 4)–40 to +85°C (no freezing)
Operating Humidity5 to 85%RH (no condensation)
Storage Temperature–40 to +85°C
Operating Frequency (rated load)1200 operations per hour
Weight (approx.)20g23g
Note 1: Measured using 6V DC,1A voltage drop method.
Note 2: Failure rate level P (reference value)
Note 3: Response time is the time until NO contact opens, after the coil voltage is turned off.
Note 4: When using at 70 to 85°C, reduce the switching current by 0.1A/°C.
Between contacts of different poles
Between contacts of the same pole1500V AC, 1 minute
Operating Extremes10 to 55 Hz, amplitude 0.75 mm
Damage Limits10 to 55 Hz, amplitude 0.75 mm
Operating Extremes (half sine-wave pulse: 11 ms)
Damage Limits (half sine-wave pulse: 6 ms)1000 m/s
2500V AC, 1 minute
2500V AC, 1 minute
Between contacts 7-8 and 9
4000V AC, 1 min.
Between contacts 3-4 and 5-6
Between contacts 3-4 and 7-8
Between contacts 5-6 and 9-10
8 ms maximum (at the rated coil voltage, excluding contact bounce time)
200 m/s2, when mounted on DIN rail mount socket: 150 m/s2
2
250V AC 6A resistive load: 100,000 operations minimum (operating frequency 1200 per hour)
30V DC 6A resistive load: 100,000 operations minimum (operating frequency 1200 per hour)
250V AC 1A resistive load: 500,000 operations minimum (operating frequency 1800 per hour)
30V DC 1A resistive load: 500,000 operations minimum (operating frequency 1800 per hour)
[AC 15] 240V AC 2A inductive load: 100,000 operations minimum
(operating frequency 1200 per hour, cos ø = 0.3)
[DC 13] 24V DC 1A inductive load: 100,000 operations minimum
(operating frequency 1200 per hour, L/R = 48 ms)
(Note)
Operating Humidity5 to 85% RH (no condensation)
Storage Humidity
Degree of Protection
Weight (approx.)40g55g9g10g
Note: When using at 70 to 85°C, reduce the switching current by 0.1A/°C.
1000MΩminimum
(500V DC megger, between terminals)
2
1.65 mm
0.7 to
(18 AWG to 14 AWG)
0.5 to 0.8 N·m—
Damage limits: 10 to 55 Hz, amplitude 0.75 mm
Resonance: 10 to 55 Hz, amplitude 0.75 mm
2
40 to +85°C (no freezing)
–
40 to +85°C
–
IP20
(nger-safescrewterminals)
—
—
Applicable Crimping Terminals
Note: Ring tongue terminals cannot be used.
5
RF1VForce Guided Relays / SF1V Relay Sockets
6
250
10
0.1
1
100
1
10
AC Resistive Load
Load Voltage (V)
DC Resistive Load
Load Current (A)
0.11
100
10
1
500
10
30V DC Resistive Load
Load Current (A)
Life (×10,000 operations)
250V AC Resistive Load
50 max.
13 max.
24 max.
3.5
10.16
1.0
1.83
13.97
5.08
11.43
5.08
5.08
5.08
0.5
13 max.
24 max.
3.5
10.16
1.0
1.83
13.97
5.08
11.43
5.08
0.5
40 max.
10- 1.4 hole
13.97
5.08
±0.1
±0.1
±0.1
±0.1
11.43
5.08
10.16
(1.83)
14- 1.4 hole
11.43
±0.1
±0.1
±0.1
±0.1
±0.1
±0.1
±0.1
5.08
5.08
5.08
13.97
5.08
10.16
(1.83)
1
2
34
5678910
+
–
4NO-2NC Contact3NO-3NC Contact5NO-1NC Contact
–
–
+
–
+
–
+
–
+
–
+
1
23456
7 81112
91013 14
1234567811 12
9101314
1234567811 12
9101314
4NO-2NC Contact3NO-3NC Contact5NO-1NC Contact
+
1
23456
7811 12
9101314
1234567 81112
9101314
1234567 81112
9101314
2NO-2NC Contact
3NO1NC Contact
2NO-2NC Contact
3NO-1NC Contact
123 4567 8
910
12345678
910
1234567 8
910
123 4567 8
910
+
–
+
–
+
–
+
–
(090319)
Accessories
ItemAppearanceSpecicationsType No. Ordering Type No. Package QuantityRemarks
DIN Rail
Aluminum
Weight: Approx. 200g
Steel
Weight: Approx. 320g
Aluminum
Weight: Approx. 250g
BAA1000BAA1000PN1010
BAP1000BAP1000PN1010
BNDN1000 BNDN10001
Length: 1m
Width: 35 mm
North American standard product
Length: 1m
Width: 35 mm
BNL5BNL5PN1010
End Clip
Metal (zinc plated steel)
Weight: Approx. 15g
—
BNL6BNL6PN1010
CharacteristicsNotes on Contact Gaps except Welded
Maximum Switching Capacity•Electrical Life Curve•
Contacts
Example: RF1V-2A2B-D24
If the NO contact (7-8 or 9-10) welds, the NC contact (3-4 or •
5-6) remains open even when the relay coil is de-energized,
maintaining a gap of 0.5 mm. The remaining unwelded NO
contact (9-10 or 7-8) is either open or closed.
If the NC contact (3-4 or 5-6) welds, the NO contact (7-8 or •
9-10) remains open even when the relay coil is energized,
maintaining a gap of 0.5 mm. The remaining unwelded NC
contact (5-6 or 3-4) is either open or closed.
Emax= Maximum of pulsating current
Emin= Minimum of pulsating current
Emean = DC mean value
Emean
R
Vin
EAC
TE
Load
V
in
E
AC
R
TE
lo
R
R
Counter emf
suppressing diode
Relay
+
–
Power
CR
Ind. Load
C
R
Power
Ind. Load
+
–
D
Power
Ind. Load
Varistor
Power
Ind. Load
Power
C
Load
C
Load
Power
Tolerance Range
(Avoid freezing
when using at
temperatures
below 0ºC)
(Avoid
condensation
when using at
temperatures
above 0ºC)
85
5
0–40
85
Humidity (%RH)
Temperature (ºC)
(090319)
1. Driving Circuit for Relays
1. To make sure of correct relay operation, apply
2. Input voltage for DC coil:
3. Operating the relay in sync with an AC load:
If the relay operates in sync with AC power volt-
4. Leakage current while relay is off:
When driving an element at the same time as
Incorrect
Correct
5. Surge suppression for transistor driving circuits:
rated voltage to the relay coil. Pickup and dropout voltages may differ according to operating
temperature and conditions.
A complete DC voltage is best for the coil power
to make sure of stable operation. When using a
power supply containing a ripple voltage, suppress the ripple factor within 5%. When power
operating characteristics, such as pickup voltage and dropout voltage, depend on the ripple
factor. Connect a smoothing capacitor for better
operating characteristics as shown below.
age of the load, the relay life may be reduced. If
this is the case, select a relay in consideration of
the required reliability for the load. Or, make the
relay turn on and off irrespective of the AC power
phase or near the point where the AC phase
crosses zero voltage.
the relay operation, special consideration is
needed for the circuit design. As shown in the
incorrect circuit below, leakage current (Io)
Leakage current causes coil release failure or
adversely affects the vibration resistance and
shock resistance. Design a circuit as shown in
the correct example.
When the relay coil is turned off, a high-voltage
pulse is generated. Be sure to connect a diode
to suppress the counter electromotive force.
Then, the coil release time becomes slightly
longer. To shorten the coil release time, connect
a Zener diode between the collector and emitter
of the controlling transistor. Select a Zener diode
with a Zener voltage slightly higher than the
power voltage.
6. The coil terminal of the relay has polarity.
Connect terminals according to the internal
connection diagram. Incorrect wiring may cause
malfunction.
2. Protection for Relay Contacts
1. The contact ratings show maximum values.
Make sure that these values are not exceeded.
Whenaninrushcurrentowsthroughtheload,
the contact may become welded. If this is the
case, connect a contact protection circuit, such
as a current limiting resistor.
2. Contact protection circuit:
When switching an inductive load, arcing causes
carbides to form on the contacts, resulting in an
increased contact resistance. In consideration
of contact reliability, contact life, and noise
suppression, use of a surge absorbing circuit
is recommended. Note that the release time
of the load becomes slightly longer. Check the
operation using an actual load. Incorrect use of
a contact protection circuit will adversely affect
switching characteristics. Four typical examples
of contact protection circuits are shown in the
following table:
This protection circuit can be
used when the load impedance is
smaller than the RC impedance in
an AC load power circuit.
R: Resistor of approximately the
same resistance value as the load
RC
Diode
Varistor
3. Do not use a contact protection circuit as shown
below:
than switching a DC resistive load. Using an appropriate
arc suppressor will improve the switching characteristics of
a DC inductive load.
3. Usage, transport, and storage conditions
1. Temperature, humidity, atmospheric pressure
during usage, transport, and storage.
➀ Temperature: –45°C to +85°C (no freezing)
When the temperature is 70 to 80°C, reduce
the 6A max. switching current by 0.1 A/°C
➁ Humidity: 5 to 85%RH (no condensation)
The humidity range varies with temperature.
Use within the range indicated in the chart
below.
➂ Atmospheric pressure: 86 to 106 kPa
C:0.1to1μF
This protection circuit can be used
for both AC and DC load power
circuits.
R: Resistor of approximately the
same resistance value as the load
C:0.1to1μF
This protection circuit can be used
for DC load power circuits. Use a
diode with the following ratings.
Reverse withstand voltage:
Power voltage of the load circuit
× 10
Forward current:
More than the load current
This protection circuit can be used
for both AC and DC load power
circuits.
For a best result, when using on a
power voltage of 24 to 48V AC/DC,
connect a varistor across the load.
When using on a power voltage
of 100 to 240V AC/DC, connect a
varistor across the contacts.
This protection circuit is very effective in arc
suppression when opening the contacts. But,
the capacitor is charged while the contacts
are opened. When the contacts are closed,
the capacitor is discharged through the
contacts, increasing the possibility of contact
welding.
This protection circuit is very effective in arc
suppression when opening the contacts.
But, when the contacts are closed, a current
owstochargethecapacitor,causingcontact
welding.
Operating temperature and humidity range
2. Condensation
Condensation occurs when there is a sudden
change in temperature under high temperature
and high humidity conditions. The relay insulation may deteriorate due to condensation.
3. Freezing
Condensation or other moisture may freeze on
the relay when the temperatures is lower than
0ºC. This causes problems such as sticking of
movable parts or delay in operation.
4. Low temperature, low humidity environments
Plastic parts may become brittle when used in
low temperature and low humidity environments.
4. Panel Mounting
When mounting DIN rail mount sockets on a panel,
take the following into consideration.
Use M3.5 screws, spring washers, and hex nuts.•
For mounting hole layout, see page 6.•
Keep the tightening torque within 0.49 to 0.68 •
m. Excessive tightening may cause damage to
N
·
the socket.
5. Others
1. General notice:
➀ To maintain the initial characteristics, do not
drop or shock the relay.
➁ The relay cover cannot be removed from the
base during normal operation. To maintain
the initial characteristics, do not remove the
relay cover.
➂ Use the relay in environments free from
condensation, dust, sulfur dioxide (SO
hydrogensulde(H
S).
2
), and
2
➃ The RF1V relay cannot be washed as it is not
asealedtype.Alsomakesurethatuxdoes
not leak to the PC board and enter the relay.
2. Connecting outputs to electronic circuits:
When the output is connected to a load which
responds very quickly, such as an electronic
circuit, contact bouncing causes incorrect operation of the load. Take the following measures
into consideration.
➀ Connect an integration circuit.
➁ Suppress the pulse voltage due to bouncing
within the noise margin of the load.
3. Do not use relays in the vicinity of strong mag-
neticeld,asthismayaffectrelayoperation.
4. UL and CSA ratings may differ from product
rated values determined by IDEC.
6. Notes on PC Board Mounting
When mounting 2 or more relays on a PC board, •
keep a minimum spacing of 10 mm in each
direction. If used without spacing of 10 mm,
rated current and operating temperature differs.
Consult IDEC.
Manual soldering: Solder the terminals at 400°C•
within 3 sec.
Auto-soldering: Preliminary heating at 120°C •
within 120 sec. Solder at
Becausetheterminalpartislledwithepoxy•
resin, do not excessively solder or bend the
terminal. Otherwise, air tightness will degrade.
Avoid the soldering iron from touching the relay •
Room 211B, Tower B, The Grand Pacific Building,
8A Guanghua Road, Chaoyang District,
Beijing 100026, PRC
Tel: +86-10-6581-6131, Fax: +86-10-6581-5119
IDEC (SHENZHEN) CORPORATION
Unit AB-3B2, Tian Xiang Building, Tian’an Cyber Park,
Fu Tian District, Shenzhen, Guang Dong 518040, PRC
Tel: +86-755-8356-2977, Fax: +86-755-8356-2944
IDEC IZUMI (H.K.) CO., LTD.
Units 11-15, Level 27, Tower 1,
Millennium City 1, 388 Kwun Tong Road,
Kwun Tong, Kowloon, Hong Kong
Tel: +852-2803-8989, Fax: +852-2565-0171
E-mail: info@hk.idec.com
IDEC TAIWAN CORPORATION
8F-1, No. 79, Hsin Tai Wu Road, Sec. 1,
Hsi-Chih, Taipei County, Taiwan
Tel: +886-2-2698-3929, Fax: +886-2-2698-3931
E-mail: service@tw.idec.com
IDEC IZUMI ASIA PTE. LTD.
No. 31, Tannery Lane #05-01,
HB Centre 2, Singapore 347788
Tel: +65-6746-1155, Fax: +65-6844-5995
E-mail: info@sg.idec.com
www.idec.com
(090319)
Control circuits conforming with safety categories 2, 3, and 4 can be constructed.
Safety category 4 control circuits•
The circuit example below consisting of interlock
switches, force guided relays, and safety contactors are
only a part of a safety-related system in a machine. In
actual machines, risk assessment must be performed
taking various aspects into consideration such as
hazard types, safeguarding measures, and change of
hazard level in operating mode, in order to reduce the
risk of the entire machine to a tolerable level. The safety
category of a machine needs to be evaluated for the
entire safety-related system.
Safety function at occurrence of single faults•
1. If a short-circuit failure occurs at either of the S1 channels, when
the safety guard is opened, K2 does not turn off but K1 turns off, so
safety function (power interruption to the motor) is maintained. The
system does not restart because the NC contact of K2 remains open
and K3 is not energized even when S2 is turned on.
2. If a short-circuit failure occurs between S1 channels, the potential difference of K1 and K2 coils become 0V, turning K1 and K2 off. (Fault
detection function between safety input circuits)
3. If NO contact of KM1 is welded, KM2 turns off when the safety guard
is opened, so the safety function (power interruption to the motor)
is maintained. The system does not restart because the NC contact
remains open and K3 is not energized even when S2 is turned on.
4. If the NO contact of K1 is welded, K2 turns off when the safety guard
is opened, so the safety function (power interruption to the motor) is
maintained. The system does not restart because the NC contact of
K1 remains open and K3 is not energized even when S2 is turned on.
5. If NC contact of K3 is welded, K1 and K2 turn off when the safety
guard is opened, so the safety function (power interruption to the
motor) is maintained. Also, the system does not restart because NO
contact of K3 does not shut, therefore K1 and K2 cannot be energized.
S1: HS6B subminiature interlock switch
S2: Start switch (HW series momentary type)
K1, K2, K3: RF1V force guided relays
KM1, KM2: Safety contactor
M: Motor
F1: Protection fuse for safety circuit
F2: Protection fuse for mechanical contact
output of force guided relay contact
F3 to F5: Protection fuse for mechanical contact
output of safety contactors
Time Chart•
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