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Other commands
Syntax: Statement + CR (ETX)
<Type of commands>
Statement
$
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'.
Execute zero adjust command. (Zero-sheet level teaching)
After the command execution, the following response is given depending on
the teaching condition.
ADJ 0
On successful teaching: OK + CR (ETX)
On unsuccessful teaching: NG + CR (ETX)
8
CAUTIONS
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.
9
SPECIFICATIONS
Sensor heads
Type
Item
Model No.
Applicable controllers
Sensing range (between sensor heads)
Detectable sheet thickness (Note 2)
Setting distance
Material
Applicable controllers
GD-C1 / GD-C2
Iron
(SPCC)
GD-C3
GD-C1 / GD-C2
Aluminum
GD-C3
GD-C1 / GD-C2
Copper
GD-C3
GD-C1 / GD-C2
Brass
GD-C3
GD-C1 / GD-C2
Stainless steel
(SUS 304)
GD-C3
Protection
Ambient temperature
Ambient humidity
Material
Cable
Weight
Accessory
Notes: 1)
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.
2)
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.
Controllers
Type
Item
Model No.
Supply voltage
Current consumption
Output
(OUT-1, OUT-2, ALM., Answer-back)
Output operation
Short-circuit protection
Response time
Ambient temperature
Ambient humidity
Material
Weight
Accessory
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.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Usage
Small object detection
GD-3
GD-C3 (Note 1)
10mm or less
Standard sensing object size: 20 20mm
5mm
10mm
0.01 to 0.1mm
0.03 to 0.1mm
0.015 to 1mm
0.015 to 1mm
0.018 to 1mm
0.018 to 0.3mm
0.03 to 1mm
0.03 to 0.5mm
0.3 to 1mm
0.3 to 1mm
Enclosure: Stainless steel (SUS 303), Sensing face: ABS
2
Sender: 0.3mm
single core shielded cable, 3m long
2
Receiver: 0.1mm
90g approx.
Standard
GD-C1
NPN open-collector transistor
Maximum sink current: 100mA
Applied voltage: 30V DC or less (between output and 0V)
OUT-1: OFF above the one-sheet threshold level
OUT-2: OFF above the two-sheet threshold level
Automatically selected either 5ms or less, or 30ms or less, depending on the object
-10 to +50
Statement
Execute SET-1 command. (One-sheet level teaching)
After the command execution, the following response is given depending on
the teaching condition.
SET 1
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.
SET 2
On successful teaching: OK + CR (ETX)
On unsuccessful teaching: NG + CR (ETX)
After the above command is sent, Statement + CR (ETX) is re-
turned by GD-C2 to confirm the communication.
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.
High precision
GD-10
GD-C1, GD-C2, GD-C3
30mm or less
Standard sensing object size: 80 80mm
20mm
0.07 to 1mm
0.07 to 0.5mm
0.01 to 0.3mm
0.01 to 0.1mm
0.03 to 6mm
0.03 to 2mm
0.015 to 1mm
0.015 to 1mm
0.03 to 6mm
0.03 to 2mm
0.018 to 1mm
0.018 to 1mm
0.03 to 6mm
0.03 to 2mm
0.01 to 1mm
0.01 to 1mm
0.1 to 6mm
0.1 to 2mm
0.05 to 2mm
0.05 to 1mm
IP67 (IEC)
-10 to +60 , Storage: -25 to +70
45 to 85% RH, Storage: 35 to 95% RH
Polyalylate
2-core shielded cable, 3m long
80g approx.
Sensor head mounting bracket: 1 set for sender and receiver
With RS-232C communication function
GD-C2
12 to 24V DC 10% Ripple P-P 10% or less
12V DC: 700mA or less, 24V DC: 400mA or less
ALM.: OFF when an error occurs
Answer-back: Refer to the time chart of the '
Incorporated
(No dew condensation or icing allowed), Storage: -25 to +70
45 to 85% RH, Storage: 35 to 90% RH
Heat-resistant ABS
440g approx.
Insulation plate: 2 pcs.
Usage
Long sensing range
GD-20
GD-C1, GD-C2
70mm or less
Standard sensing object size: 200 200mm
30mm
35mm
0.07 to 10mm
0.03 to 10mm
0.03 to 10mm
0.03 to 10mm
0.1 to 10mm
IP67 (IEC), IP67g (JEM)
Sensing face: Polyacetal, Main body: Stainless steel
2
Sender: 0.5mm
single core shielded cable, 3m long
2
Receiver: 0.3mm
2-core shielded cable, 3m long
440g approx.
Small object detection
GD-C3
Residual voltage: 1V or less (at 100mA sink current)
0.4V or less (at 16mA sink current)
5
SENSITIVITY SETTING'.
5ms or less
(Note)
70mm
0.07 to 6mm
0.03 to 6mm
0.03 to 6mm
0.03 to 6mm
0.1 to 6mm
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