SET-3A Omron, SET-3A Datasheet - Page 8

• Manufacturer Part Number: SET-3A
• Description: CONVERTER CURRENT 1-80A FOR SAO
• Manufacturer: Omron
• Series: SAOr

Specifications of SET-3A

• Accessory Type: Current Converter
• For Use With/related Products: SAO Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SET3A

Make the settings for the SAO-SU Current Sensor and the SET-3@ Current Converter according to the current of the load to be used.
Steady Current
Note: The current setting range is determined by the number of times the conductors to the SET-3@ are passed through and by the setting tap of
Determining Current Sensor Settings
1. Determining the Current Scale Multiplying
Determine a current scale multiplying factor that matches the steady
current obtained from the table, and attach that decal to the Current
Sensor. For example, when the current setting range is 2 to 5 A, the
label number is 0.5.
2. Setting the Operating Current
Determine the operating current setting from the required steady
current and the label number (i.e., multiplying factor), and make the
setting using the current setting knob. The following table shows the
relation between scale values and actual operating current values.
3. LED Operation Indicator
The indicator is continuously lit for normal current and not lit when
undercurrent is detected.
4. Test Button
Pressing the test button momentarily operates the output relay.
Factor
× 0.25
× 0.5
× 1
× 2
× 4
× 8
× 16
Setting
(current setting
Rated current
Factor
16 to 40
32 to 80
64 to 160
range) (A)
1 to 2.5
2 to 5
4 to 10
8 to 20
the SET-3@. The current scale values are always 4 to 10 A. Therefore, attach the included current scale multiplying factor decal to the SAO
that matches the current range.
16
32
64
1
2
4
8
4
These figures indicate steady current values. (Unit: A)
SAO-SU
10
20
40
80
1.25
2.5
5
5
multiplying factor
Current scale
label number
12
24
48
96
16
1.5
3
6
0.25
0.5
1
2
4
8
6
112
14
28
56
1.75
3.5
7
7
conductor passes
128
16
32
64
2
4
8
8
Number of
144
8
4
2
1
1
1
1
18
36
72
2.25
4.5
9
9
Current converter
160
10
20
40
80
10
2.5
5
Setting tap
Fixed
20
20
20
20
40
80
Determining Current Converter
Settings
1. Determining the Number of Passes for
• Determine the number of primary conductor passes and the setting
• Pass the wires through the holes from the same direction. It doesn’t
2. Setting the Tap
Use a screwdriver to screw the included setting screw into the
required tap hole. After the setting has been made, be sure to mount
the cover as it was before.
The SET-3B does not have tap settings.
tap according to the table. For example, for a current setting range
of 2 to 5 A, the number of passes is four and the setting tap is 20.
matter which wires go through which holes.
Primary Conductors
SET-3A
SET-3B
Model
OMRON Corporation
SET-3A
CURRENT
CONVERTER
No.
DATE
(The conductors pass
through the holes once.)
2 5 0 5 3
1 9 8 3
One conductor pass
MADE IN JAPAN
20
40
60
(The conductors pass
though the holes four times.)
Four conductor passes
(1)
(2)
SAO
8