Omron G7SA User manual

132
Safety Relay G7SA
Slim Safety Relays Conforming to EN
Standards
The forcibly guided contact in the G7SA assures
safe operation (EN50205 Class A, approved by
VDE.)
Ideal for use in safety circuits in press machinery,
machine tools, and other production machinery.
Four-pole and six-pole Relays are available.
The Relay’s terminal arrangement simplifies PWB
pattern design.
Reinforced insulation between inputs and outputs.
Reinforced insulation between some poles.
UL, CSA approval.
CE marking.
Note: Be sure to refer to the Precautions on page 131.
X
VDE
RC
Ordering Information
Safety Relays
Type Sealing Poles Contacts Rated voltage Model
Standard Flux-tight 4 poles
3PST-NO, SPST-NC 24 VDC G7SA-3A1B
S a da d
ug
oes
DPST-NO, DPST-NC
C
G7SA-2A2B
6 poles
5PST-NO, SPST-NC G7SA-5A1B
6oes
4PST-NO, DPST-NC G7SA-4A2B
3PST-NO, 3PST-NC G7SA-3A3B
Safety Relay Sockets
Type LED indicator Poles Rated
voltage Model
Track-mounting T rack mounting and screw mounting
ibl
No
4 poles
--- P7SA-10F
ac ou g
ac ou g a d sc e ou g
possible
o
6 poles P7SA-14F
Yes
4 poles
24 VDC P7SA-10F-ND
es
6 poles
C
P7SA-14F-ND
Back-mounting PCB terminals No
4 poles
--- P7SA-10P
ac ou g
Ce as
o
6 poles P7SA-14P
Model Number Legend
G7SA-jAjB
12
1. NO Contact Poles
2: DPST-NO
3: 3PST-NO
4: 4PST-NO
5: 5PST-NO
2. NC Contact Poles
1: SPST-NC
2: DPST-NC
3: 3PST-NC

G7SA G7SA
133
Specifications
Ratings
Coil
Rated
voltage Rated
current Coil resistance Must-operate
voltage Must-release voltage Max. voltage
Power consumption
24 VDC 4 poles: 15 mA
6 poles: 20.8 mA
4 poles: 1,600 Ω
6 poles: 1,152 Ω
75% max. (V) 10% min. (V) 1 10% (V) 4 poles: Approx. 360 mW
6 poles: Approx. 500 mW
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23 ° C with tolerances of ±15%.
2. Performance characteristics are based on a coil temperature of 23 °C.
3. The
value given for the maximum voltage is for voltages applied instantaneously to the Relay coil (at an ambient temperature of
23°C) and not continuously .
Contacts
Load Resistive load (cos φ =1)
Rated load 6 A at 250 V AC, 6 A at 30 VDC
Rated carry current 6 A
Max. switching voltage 250 V AC, 125 VDC
Max. switching current 6 A
Max. switching capacity (reference value) 1,500 V A, 180 W
Characteristics
Safety Relay Sockets
Model Continuous current Dielectric strength Insulation resistance
P7SA-14j 6 A (see note 1) 2,500 V AC for 1 min. between poles 100 M Ω min. (see note 2)
Note: 1. If the P7SA-1 j F is used between 55 and 85 ° C, reduce the continuous current (from 6A) by 0.1 A for every degree.
2. Measurement conditions: Measurement of the same points as for the dielectric strength at 500 VDC.
3. When using the P7SA-1 j F-ND at 24 VDC, use at an ambient operating temperature from –25 to 55 °C.
Safety Relays
Contact resistance 100 m Ω max. (The contact resistance was measured with 1 A at 5 VDC using the
voltage-drop method.)
Operating time (see note 2) 20 ms max.
Response time (see note 2) 10 ms max. (The response time is the time it takes for the normally open contacts to open
after the coil voltage is turned OFF
.)
Release time (see note 2) 20 ms max.
Maximum operating
f
Mechanical 36,000 operations/hr
a u ope a g
frequency
Rated load 1,800 operations/hr
Insulation resistance 100 M Ω min. (at 500 VDC)
(The insulation resistance was measured with a 500-VDC megger at the same places that the
dielectric strength was measured.)
Dielectric strength (see notes 3, 4) Between coil contacts/dif ferent poles: 4,000 V AC, 50/60 Hz for 1 min
(2,500 V AC between poles 3–4 in 4-pole Relays or poles 3–5, 4–6, and 5–6 in 6-pole Relays.)
Between contacts of same polarity: 1,500 VAC, 50/60 Hz for 1 min
V ibration resistance 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance
Destruction 1,000 m/s
2
Soc essace
Malfunction 100 m/s
2
Life expectancy
Mechanical 10,000,000 operations min. (at approx. 36,000 operations/hr)
e e pec a cy
Electrical 100,000 operations min. (at the rated load and approx. 1,800 operations/hr)
Min. permissible load (see note 5)
(reference value)
5 VDC, 1 mA
Ambient temperature (see note 6) Operating: –40° C to 85 ° C (with no icing or condensation)
Storage: –40° C to 85 ° C (with no icing or condensation)
Ambient humidity Operating: 35% to 85%
Storage: 35% to 85%
Weight 4 poles: Approx. 22 g
6 poles: Approx. 25 g
Approved standards EN61810-1 (IEC61810-1), EN50205, UL508, CSA22.2 No. 14
Note: 1. The values listed above are initial values.

G7SA G7SA
134
2. These times were measured at the rated voltage and an ambient temperature of 23 ° C. Contact bounce time is not included.
3. Pole 3 refers to terminals 31–32 or 33–34, pole 4 refers to terminals 43–44, pole 5 refers to terminals 53–54, and pole 6 refers to
terminals 63–64.
4. When using a P7SA Socket, the dielectric strength between coil contacts/dif ferent poles is 2,500 V AC, 50/60 Hz for 1 min.
5. Min. permissible load is for a switching frequency of 300 operations/min.
6. When operating at a temperature between 70 ° C and 85 ° C, reduce the rated carry current (6 A at 70 ° C or less) by 0.1 A for each
degree above 70 °C.
Dimensions
Note: All units are in millimeters unless otherwise indicated. The diagrams are drawn in perspective.
Safety Relays
G7SA-3A1B
G7SA-2A2B
Terminal Arrangement/
Internal Connection Diagram
(Bottom V iew)
G7SA-3A1B
G7SA-2A2B
Printed Circuit Board
Design Diagram
(Bottom View)
G7SA-5A1B
G7SA-4A2B
G7SA-3A3B
T erminal Arrangement/
Internal Connection Diagram
(Bottom V iew)
G7SA-5A1B
G7SA-4A2B
Printed Circuit Board
Design
Diagram
(Bottom View)
G7SA-3A3B
40 max.
0.5
0.5
3.5
13 max.
24 max.
1
Ten, 1.4 dia.
50 max.
0.5
0.5
3.5
13 max.
24 max.
1
Fourteen, 1.4 dia.
(±0.1 tolerance)
(±0.1 tolerance)
Note: Terminals 23-24, 33-34, and 43-44 are nor-
mally open. Terminals 11-12 and 21-22 are
normally
closed.
Note: Terminals 23-24, 33-34, 53-54, and 63-64 are
normally open. Terminals 11-12, 21-22, and
31-32
are normally closed.

G7SA G7SA
135
Safety Relay Sockets
Track-mounting Socket
P7SA-10F, P7SA-10F-ND
Terminal Installation/Internal Connection Diagram
(T op V iew)
G7SA-3A1B
Mounted G7SA-2A2B Mounted
Mounting Hole Placement Diagram
(T op V iew)
Two, 4 dia. or M3.5
4 dia.
22.5 max. 60.5 max.
9 max.
72 max.
LED
indicator
9 max.
Track-mounting Socket
P7SA-14F, P7SA-14F-ND Terminal
Arrangement/Internal Connection Diagram
(T op V iew)
Mounting Hole Placement Diagram
(T op V iew)
G7SA-5A1B
Mounted G7SA-4A2B Mounted G7SA-3A3B Mounted
4 dia.
30 max. 60.5 max.
9 max.
72 max.
LED
indicator
9 max.
Two, 4 dia. or M3.5
Note: The socket is shown with
the finger cover removed.
Note: The socket is shown with
the finger cover removed.
Note: Only the -ND Sockets have LED indicators.
Note: Only the -ND Sockets have LED indicators.
Ten, M3
Fourteen,
M3
6
6
* This display circuit is
available only for
“-ND” models.
Note: Terminals 23-24,
33-34, and 43-44
are normally
open. Terminals
11-12 and 21-22
are normally
closed.
* This display circuit is
available only for
“-ND” models.
Note: Terminals 23-24,
33-34, 43-44,
53-54, and 63-64
are normally
open. Terminals
11-12, 21-22, and
31-32 are normal-
ly closed.

G7SA G7SA
136
P7SA-10P Back-mounting Socket (for PCB)
Terminal Arrangement/Internal
Connection Diagram
(Bottom View)
Mounting Hole Placement
(Bottom View)
G7SA-3A1B
Mounted
G7SA-2A2B
Mounted
Three, 3.2 dia.
(for M3 tapping screws)
Three, 2.6 dia.
(for M3 tapping screws)
50 max.
41.5 max.
Ten, 1.1 dia.
15 max. (±0.1 tolerance)
Note: Terminals
23-24, 33-34, and 43-44 are normally open. T erminals 1 1-12 and 21-22
are normally closed.
P7SA-14P Back-mounting Socket (for PCB)
Terminal Arrangement/Internal
Connection Diagram
(Bottom View)
Mounting Hole Placement
(Bottom View)
G7SA-5A1B
Mounted
G7SA-4A2B
Mounted
Three, 2.6 dia.
(for M3 tapping screws)
G7SA-3A3B
Mounted
Three, 3.2 dia.
(for M3 tapping
screws)
60 max.
41.5 max.
15 max.
(±0.1 tolerance)
Fourteen,
1.1 dia.
Note: Terminals
23-24, 33-34, 43-44, 53-54, and 63-64 are normally open. T erminals 1 1-12, 21-22,
and 31-32 are normally closed.

G7SA G7SA
137
Precautions
Safety Relays
A Safety Relay is a Relay with which a safety circuit can be config -
ured.
Wiring
Use one of the following wires to connect to the P7SA-10F/10F-
ND/14F/14F-ND.
Stranded
wire: 0.75 to 1.5 mm
2
Solid wire: 1.0 to 1.5 mm
2
Tighten each screw of the P7SA-10F/10F-ND/14F/14F-ND to a
torque
of 0.98 N Sm securely.
Wire
the terminals correctly with no mistakes in coil polarity , other -
wise
the G7SA will not operate.
Cleaning
The G7SA is not of enclosed construction. Therefore, do not wash
the G7SA with water or detergent.
Forcibly Guided Contacts (from EN50205)
If an NO contact becomes welded, all NC contacts will maintain a
minimum distance of 0.5 mm when the
coil is not energized. Like -
wise
if an NC contact becomes welded, all NO contacts will maintain
a minimum distance of 0.5 mm when the coil is energized.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. T o convert grams into ounces, multiply by 0.03527.
Cat. No. J120-E1-1A