High-end incremental linear encoders – G2 Series

 Incremental linear encoder – G2 series

Linear encoder with small reader head, air intake and connector at both ends, with threaded head for different mounting options without the need for nuts.

Especially indicated for high standard environments in terms of speed and vibration.
Their special design of the securing points of the linear encoder (TDMS™), drastically reduces the errors and ensures the accuracy and repeatability of the encoders

Measuring lengths in millimeter
140 • 240 • 340 • 440 • 540 • 640 • 740 • 840 • 940 • 1.040 • 1.140 • 1.240 • 1.340 • 1.440 • 1.540 • 1.640 • 1.740 • 1.840 • 2.040 • 2.240 • 2.440 • 2.640 • 2.840 • 3.040

Characteristics:
G2X G2Y G2W G2Z G2P
Measurement
By means of a 20 μm-pitch graduated glass
Glass thermal expansion coefficient
α therm: 8 ppm/K
Measuring resolution
1 μm
0,5 μm
0,1 μm
0,05 μm
Hasta 0,1 μm
Output signals
salida-TTL-diferencialTTL differential salida-TTL-diferencialTTL differential salida-TTL-diferencialTTL differential salida-TTL-diferencialTTL differential onda-senoidal1 Vpp
Incremental signal period
4 μm
2 μm
0,4 μm
0,2 μm
20 μm
Limit frequency
500 KHz
1 MHz
1,5 MHz
500 KHz
100 KHz
Maximum speed
120 m/min
120 m/min
36 m/min
6 m/min (*)
120 m/min
Minimum distance between flanks
0,2
μs
0,2
μs
0,1
μs
0,3
μs
_
Reference marks I0
G2X, G2Y, G2W, G2Z y G2P: every 50 mm
G2OX, G2OY, G2OW, G2OZ y G2OP: distance-coded I0
Maximum cable length
50 m
50 m
50 m
50 m
150 m
Supply voltage
5 V ± 5%,
<150 mA (without load)
5 V ± 5%,
<150 mA (without load)
5 V ± 5%,
<150 mA (without load)
5 V ± 5%,
<150 mA (without load)
5 V ± 10%,
<150 mA (without load)
Accuracy
± 5 μm/m
± 3 μm/m
Maximum vibration
200 m/s2 (55 ... 2000 Hz) IEC 60068-2-6
Maximum shock
300 m/s2 (11 ms) IEC 60068-2-2
Maximum acceleration
100 m/s2 in the measuring direction
Required moving force
< 5 N
Operating temperature
0°C ... 50°C
Storage temperature
-20°C ... 70°C
Weight
0,25 kg + 2,25 kg/m
Relative humidity
20 ... 80%
Protection
IP 53 (standard)
IP 64 (DIN 40050) using pressurized air at 0.8±0.2 bar in linear encoder
Reader head
With built-in connector Connection at both ends of the reader head

(*): contact Fagor Automation for higher speed

G2 model
(Dimensions in mm)

Order identification:
Example of Linear Encoder: G2OX-1640-5-A-T
G2 O X 1640 5 A T
Type of profile for wide space Type of reference mark I0:
• Blank space: Incremental, one mark every 50 mm
• O: Distance-coded mark
Type of signal:
• X: 1 μm resolution differential TTL
• Y: 0.5 μm resolution differential TTL
• W: 0.1 μm resolution differential TTL
• Z: 0.05 μm resolution differential TTL
• P: 1 Vpp sinusoidal
Measuring lengths in millimeters:
In the example
(1640) = 1640 mm
Accuracy of the linear encoder:
• 5: ± 5 μm
• 3: ± 3 μm
Air intake on the reader head:
A: With air intake
Threaded head:
• Blank space: M8
T: M6