Sensor Head; Bml Sf2; Ambient Conditions; Power Supply - Balluff BML SF2-I2-GZZZ-KA Serie Betriebsanleitung

BML SF2-I2 _ _ -GZZZ - ZZZ5-...
Incremental Magnetic Encoder System
7
Technical data
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.
7.1

Sensor head

7.1.1 Accuracy
Position resolution
BML SF2-...-G... Controller-dependent
(analog)
Repeat accuracy ≤ 1 µm
Hysteresis ≤ 4 µm
Non-linearity of sensor ≤ ±4 µm
head
Read distance

BML SF2-_ _0/2_-...

≤ 1.8 mm
BML SF2-_ _1_-... ≤ 1.5 mm
Movement speed ≤ 20 m/s
(depending on model,
seeTab. 6-3 on page 20)
7.1.2

Ambient conditions

Ambient temperature –20 °C...+80 °C
2)
Storage temperature –30 °C...+85 °C
Shock rating 100 g/6 ms
as per EN 60068-2-27
3)
Continuous shock as 100 g/2 ms
per EN 60068-2-27
3)
Vibration load per 12 g, 10 ...2000 Hz
EN 60068-2-6
3)
Degree of protection per IP67
IEC 60529
External magnetic fields – < 30 mT (to avoid permanent
damage)
– < 1 mT (to avoid influencing
the measurement)
Relative humidity ≤ 90% RH, non-condensing
www.balluff.com
1)
7.1.3

Power supply

Operating voltage 5 V ±5 %
4)
Current draw < 50 mA
5)
Reverse-polarity
protection and miswiring
protection
BML SF2-...-G... yes
Overvoltage protection No
Dielectric strength (GND 500 V DC
to housing)
Switch-on delay (system ≤ 100 ms
ready) after applying
supply voltage
7.1.4 Output
Interface
BML SF2-...-G... Analog Sin/Cos (1Vpp) for
functional safety
Reference signal
BML SF2-_ _0_-... w/o
BML SF2-_ _1_-... Individually or fixed-periodic
BML SF2-_ _2_-... Pole-periodic
7.1.5 Dimensions, weights
Weight (sensor head) 17 g (no cable)
Housing material Aluminum
For : Use in enclosed spaces and up to a height of 2000 m above
1)
sea level.
measured at the housing surface of the sensor head
2)
Individual specifications as per Balluff factory standard
3)
For : The sensor head must be externally connected via a
4)
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. For safety applications a PELV power supply must be used.
Without controller current draw
5)
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