Balluff BML SF2-I2 Série Notice D'utilisation page 46

BML SF2-I2 _ _ -GZZZ - ZZZ5-...
Incremental Magnetic Encoder System
4
Installation and connection (continued)
Sensor head without reference point function or with
pole-periodic reference point function
BML SF2-_ _0_-...
(no reference signal) or
BML SF2-_ _2_-... (pole-periodic
reference signal)
Z
(air gap sensor/magnetic tape)
Z
(air gap between sensor/magnetic
tape with cover strip)
Y (lateral offset)
Pitch
Yaw
Roll
Maximum non-linearity (sensor
head)
Hysteresis
Repeat accuracy
In the case of BML SF2-_ _ _ _-G... controller-dependent
1)
Tab. 4-2: Mechanical tolerances and measuring accuracy without
reference point function or with pole-periodic reference
point function
Sensor head with integrated reference sensor
BML SF2-_ _1_-... (single signal or
fixed-periodic)
Z
(air gap sensor/magnetic tape)
Z
(air gap between sensor/magnetic
tape with cover strip)
Y (lateral offset)
Pitch
Yaw
Roll
Maximum non-linearity (sensor
head)
1)
Hysteresis
Repeat accuracy
Higher values are possible within the range of the reference points. These
1)
can be minimized by aligning the sensor head to the magnetic tape (see
Tab. 4-4 on page 15).
In the case of BML SF2-_ _ _ _-G... controller-dependent
2)
Tab. 4-3: Mechanical tolerances and measuring accuracy, with
integrated reference sensor
14 english
Working range 1
Longi-
tudinal
variant
SF2-...1-...
≤ 1 mm
≤ 0.85 mm
0...
–6.0 mm
±4 µm
≤ 4 µm
≤ 1 µm
1)
Working range 1
Longi-
tudinal
variant
SF2-...1-...
≤ 1 mm
≤ 0.85 mm
0...
–1.0 mm
±4 µm
≤ 4 µm
≤ 1 µm
2)
Working range 2
Lateral Longi- Lateral
variant tudinal variant
SF2-...2-... variant SF2-...2-...
SF2-...1-...
≤ 1.5 mm
≤ 1.35 mm
+0.5... 0... +0.5...
–5.5 mm –6.0 mm –5.5 mm
≤ ±1°
±6 µm
≤ 8 µm
≤ 2 µm
Working range 2
Lateral Longi- Lateral
variant tudinal variant
variant
SF2-...2-... SF2-...2-...
SF2-...1-...
≤ 1.5 mm
≤ 1.35 mm
+0.5... 0... +0.5...
–0.5 mm –1.0 mm –0.5 mm
≤ ±1°
±6 µm
≤ 8 µm
≤ 2 µm
Function range
Longi- Lateral
tudinal variant
variant SF2-...2-...
SF2-...1-...
≤ 1.8 mm
≤ 1.65 mm
0... +0.5...
–6.0 mm –5.5 mm
(typically: ±15 µm)
Typically: 30 µm
≤ 2 µm