Balluff BML-S Series, User Manual, Page: 44 / 130

18
The specifications are typical values at room temperature.
For special versions, other technical data may
apply. Special versions are indicated by the
suffix -SA on the part label.
8.1 Accuracy
Resolution
(with 4x evaluation)
– 5 μm, 10 μm, 25 μm,
50 μm (BML-S_B/E…)
– 100 μm, 200 μm, 500 μm,
1000 μm, 2000 μm
(BML-S1C…)
Repeat accuracy < 1 increment
System accuracy
BML-S_B… – ±50 µm (sensor head
±30 µm + magnetic tape
-I45 ±18 µm at a reading
distance < 1 mm)
– ±60 µm (sensor head
±40 µm + magnetic tape
-I45 ±18 µm at a reading
distance < 2 mm)
BML-S_E… and
BML-S1C…
±100 µm (sensor head ±50 µm
+ magnetic tape -I46 ±50 µm
at a reading distance < 2 mm)
8.2 Ambient conditions
Operating temperature –20°C to +80°C
Storage temperature –30°C to +85°C
Shock rating per
EN 60068-2-27 1)
100 g/6 ms
Continuous shock per
EN 60068-2-29
1)
100 g/2 ms
Vibration load per
EN 60068-2-6
1)
12 g, 10 to 2000 Hz
Degree of protection
per IEC 60529
IP67
Altitude Max. 2000 m
External magnetic fields – < 30 mT (to avoid
permanent damage)
– < 1 mT (to avoid influencing
the measurement)
Relative humidity < 90%, non-condensing
1) Individual specifications as per Balluff factory standard
8.3 Supply voltage
Supply voltage
2)
5 V ±5% (only …Q6_…)
10 V to 30 V (only …Q5_…)
Limit switch sensor U
max
= 28 V, I
max
= 20 mA,
normally closed contact, to
GND (cable break monitoring)
Current draw – < 50 mA + controller
current draw (depending
on internal resistance), at
5 V supply voltage
– < 40 mA + controller
current draw (depending
on internal resistance), at
10 V to 30 V supply voltage
Inverse-polarity
protection
Yes, only with supply voltage
10 to 30 V (BML-S…-Q5…)
Overvoltage protection No
2)
For : The sensor head must be externally connected via a
limited-energy circuit as defined in UL 61010-1, a low-power source as
defined in UL 60950-1 or a class 2 power supply as defined in UL 1310
or UL 1585.
8.4 Output
Output signals See Tab. 4-1, Tab. 4-2 and
Tab. 4-3
Output circuit – HTL
(push-pull, only …-Q53…)
– RS422 (Line Driver)
8.5 Dimensions, weights
Reading distance
between sensor head/
magnetic tape
Min. 0.01/max. 2 mm (with
cover strip max. 1.85 mm)
Maximum movement
speed
20 m/s
(depending on type, see
Tab. 7-1 and Tab. 7-2 on
page 16)
Weight (sensor head) 11 g (without cable)
Material (housing) PBT
(plastic, glass fiber reinforced)
Magnetic tape
temperature coefficient
(like steel)
10.5×10
-6
K
-1
8
Technical data
BML-S _ B/C/E0-Q _ _ _ -M4 _ _ - _ 0-KA _ _ /KA _ _-S284
Incremental Magnetic Linear Encoder
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