HEIDENHAIN PP 281 R Exposed Linear Encoder
Product Name: HEIDENHAIN PP 281 R Exposed Linear Encoder
Product Brand: HEIDENHAIN
Product Code: PP 281 R
Product Artikel: HEIDENHAIN PP 281 R Exposed Linear Encoder
Measuring standard
Coefficient of linear expansion
Two-coordinate TITANID phase grating on glass; grating period 8 µm
α therm 8 x 10 –6 K –1
Accuracy grade
±2 µm
Measuring range
68 mm x 68 mm,
other measuring ranges upon request
Reference marks 1)
One reference mark in each axis, 3 mm after beginning of measuring length
Interface
1 V PP
Signal period
4 µm
Cutoff frequency –3 dB
≥ 300 kHz
Traversing speed
≤ 72 m/min
Interpolation error
Position noise RMS
±12 nm 3)
2 nm (450 kHz 2) )
Electrical connection
0.5 m cable with 15-pin D-sub connector (male); interface electronics in connector
Cable length
See interface description, but ≤ 30 m (with HEIDENHAIN cable)
Power supply
DC 5 V ±0.25 V
Current consumption
< 185 mA per axis
Vibration 55 Hz to 2000 Hz
Shock 11 ms
≤ 80 m/s 2 (EN 60068-2-6)
≤ 100 m/s 2 (EN 60068-2-27)
Operating temperature
0 °C to 50 °C
Mass Scanning head
Grid plate
Connecting cable
Connector
170 g (without cable)
75 g
37 g/m
140 g
1) The reference mark signal deviates in its zero crossovers from the interface specification (see Mounting Instructions)
2) –3 dB cutoff frequency of the subsequent electronics
3) With HEIDENHAIN interface electronics, e.g. EIB 741
