٨
٨
٨
٨
٨
٨
Make sure to check the ability of the sensor to detect the number of sheets
of your actual objects before use. If real objects differ from teaching sam-
ples in size or in characteristics, or the detecting condition deviates, an er-
ror may occur. Please note that magnetic metals or metals with low mag-
netic permeability such as steel especially have a strong tendency.
In situations when magnets are in close proximity such as during electromag-
net conveyance, this causes malfunctions due to electromagnetic disorder.
When conducting minute detections, favorable sensing conditions
are obtained only after having elapsed 60 minutes after the initial in-
troduction of the power supply.
Make sure that the power supply is off while wiring.
Take care that wrong wiring will damage the sensor.
Verify that the supply voltage variation is within the rating.
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٨
٨
٨
٨
٨
If power is supplied from a commercial switching regulator, ensure that the frame
ground (F.G.) terminal of the power supply is connected to an actual ground.
In case noise generating equipment (switching regulator, inverter
motor, etc.) is used in the vicinity of this product, connect the frame
ground (F.G.) terminal of the equipment to an actual ground.
Do not run the wires together with high-voltage lines or power lines or put
them in the same raceway. This can cause malfunction due to induction.
Do not operate the sensor for a few seconds immediately after supply-
ing power because of transient conditions including self-diagnosis time.
The sensor head cable can be extended up to 20m max. by using an
equivalent shielded cable. However, when using the sensor head in
places having excessive noise, make the cable as short as possible.
This sensor is suitable for indoor use only.
CAUTIONS
8
After the above command is sent, Statement + CR (ETX) is re-
turned by
GD-C2
to confirm the communication.
$
Enter into RS-232C communication from other accesses.
RNM
Enter into panel access.
EXT.
Enter into EXT. access.
CH 1 to 8
Change channel.
LOCK
Disable panel and EXT. accesses.
UNLOCK
Enable panel and EXT. accesses.
PLOCK
Disable the operation panel.
TIM 0
Enter into 'NORM. (non-timer)' timer mode.
TIM 1
Enter into 'OFD. (timer usage)' timer mode.
SMD 0
Enter into 'SET mode'.
SMD 1
Enter into 'RUN mode'.
ADJ 0
Execute zero adjust command. (Zero-sheet level teaching)
After the command execution, the following response is given depending on
the teaching condition.
On successful teaching: OK + CR (ETX)
On unsuccessful teaching: NG + CR (ETX)
Usage
Statement
Execute SET-1 command. (One-sheet level teaching)
After the command execution, the following response is given depending on
the teaching condition.
On successful teaching: OK + CR (ETX)
On unsuccessful teaching: NG + CR (ETX)
Execute SET-2 command. (Two-sheet level teaching)
After the command execution, the following response is given depending on
the teaching condition.
On successful teaching: OK + CR (ETX)
On unsuccessful teaching: NG + CR (ETX)
SET 1
SET 2
Usage
Statement
Ԛ
Other commands
Syntax: Statement + CR (ETX)
<Type of commands>
SPECIFICATIONS
9
٨
Sensor heads
Cable
Sender: 0.5mm
2
single core shielded cable, 3m long
Receiver: 0.3mm
2
2-core shielded cable, 3m long
Sender: 0.3mm
2
single core shielded cable, 3m long
Receiver: 0.1mm
2
2-core shielded cable, 3m long
Type
Model No.
Setting distance
Material
Applicable controllers
Small object detection
GD-3
High precision
GD-10
Long sensing range
GD-20
Applicable controllers
GD-C3
(Note 1)
GD-C1
,
GD-C2
,
GD-C3
GD-C1
,
GD-C2
Detectable sheet thickness (Note 2)
Standard sensing object size: 20
20mm
Standard sensing object size: 80
80mm
Ambient temperature
-10 to +60
͠
, Storage: -25 to +70
͠
Ambient humidity
45 to 85% RH, Storage: 35 to 95% RH
Standard sensing object size: 200
200mm
Weight
90g approx.
80g approx.
440g approx.
Accessory
㧙
Sensor head mounting bracket: 1 set for sender and receiver
㧙
Material
Enclosure: Stainless steel (SUS 303), Sensing face: ABS
Polyalylate
Sensing face: Polyacetal, Main body: Stainless steel
Protection
IP67 (IEC)
IP67 (IEC), IP67g (JEM)
Sensing range (between sensor heads)
10mm or less
30mm or less
70mm or less
5mm
10mm
20mm
30mm
35mm
70mm
GD-C1 / GD-C2
Iron
(SPCC)
㧙
㧙
0.07 to 1mm
0.07 to 0.5mm
0.07 to 10mm
0.07 to 6mm
GD-C3
0.01 to 0.1mm
0.03 to 0.1mm
0.01 to 0.3mm
0.01 to 0.1mm
㧙
㧙
GD-C1 / GD-C2
Stainless steel
(SUS 304)
㧙
㧙
0.1 to 6mm
0.1 to 2mm
0.1 to 10mm
0.1 to 6mm
GD-C3
0.3 to 1mm
0.3 to 1mm
0.05 to 2mm
0.05 to 1mm
㧙
㧙
Aluminum
GD-C1 / GD-C2
㧙
㧙
0.03 to 6mm
0.03 to 2mm
0.03 to 10mm
0.03 to 6mm
GD-C3
0.015 to 1mm
0.015 to 1mm
0.015 to 1mm
0.015 to 1mm
㧙
㧙
Copper
GD-C1 / GD-C2
㧙
㧙
0.03 to 6mm
0.03 to 2mm
0.03 to 10mm
0.03 to 6mm
GD-C3
0.018 to 1mm
0.018 to 0.3mm
0.018 to 1mm
0.018 to 1mm
㧙
㧙
Brass
GD-C1 / GD-C2
㧙
㧙
0.03 to 6mm
0.03 to 2mm
0.03 to 10mm
0.03 to 6mm
GD-C3
0.03 to 1mm
0.03 to 0.5mm
0.01 to 1mm
0.01 to 1mm
㧙
㧙
Item
Notes: 1)
2)
Since it is possible that
GD-3
may get damaged if controllers
GD-C1
or
GD-C2
are connected to it, make sure to use controller
GD-C3
along with
GD-3
.
The above detectable sheet thicknesses are typical data at the given sensing distance. The allowable thickness will differ from the range described in the above ta-
ble at other setting distances. Further, double feeds of aluminum foils can also be detected at distances shorter than the above. Please contact our office for details.
Note: When conducting minute ditections, the detection may be affected if the ambient temperature greatly changes from the teaching. In this case, perform the teaching
again or use the product under the equable temperature.
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Controllers
NPN open-collector transistor
Maximum sink current: 100mA
Applied voltage: 30V DC or less (between output and 0V)
Residual voltage: 1V or less (at 100mA sink current)
0.4V or less (at 16mA sink current)
Type
Model No.
Standard
GD-C1
With RS-232C communication function
GD-C2
Small object detection
GD-C3
5ms or less
Supply voltage
12 to 24V DC
r
10% Ripple P-P 10% or less
Current consumption
12V DC: 700mA or less, 24V DC: 400mA or less
Response time
Automatically selected either 5ms or less, or 30ms or less, depending on the object
Output operation
Short-circuit protection
Incorporated
Ambient temperature
-10 to +50
͠
(No dew condensation or icing allowed), Storage: -25 to +70
͠
(Note)
Ambient humidity
45 to 85% RH, Storage: 35 to 90% RH
Weight
440g approx.
Accessory
Insulation plate: 2 pcs.
Material
Heat-resistant ABS
Item
Output
(OUT-1, OUT-2, ALM., Answer-back)
OUT-1: OFF above the one-sheet threshold level
OUT-2: OFF above the two-sheet threshold level
ALM.: OFF when an error occurs
Answer-back: Refer to the time chart of the '
SENSITIVITY SETTING
'.
5
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
