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15
4
Installation and connection (continued)
4.5
Shielding and cable routing
Defined ground!
The magnetic encoder system and the control
cabinet must be at the same ground potential.
Shielding/cable routing
To ensure electromagnetic compatibility (EMC), observe
the following:
When ducting the cable between the sensor, controller,
and power supply, it is important to avoid going near high
voltage cables due to interferences.
Stray noise from AC harmonics (e.g. from phase angle
controls or frequency converters) are especially critical and
the cable shield offers very little protection against this.
Magnetic fields
The magnetic encoder system is a magnetically coded
system.
Ensure sufficient separation between the magnetic
encoder system and
strong external magnetic fields.
Cable routing
Do not route the cable between the magnetic encoder
system, controller and power supply near high voltage
cables (inductive stray noise is possible).
The cable must be routed tension-free.
Bending radius
For information on the permissible bending radius, see the
Cable length
Cable length max. 20 m. Longer cables may be used if
their construction, shielding and routing prevent noise
interference.
For cables longer than 5 m use a supply voltage of
10…30 V to compensate for the voltage drop.
Observe voltage drop in cable!
The nominal voltage on the BML must not be
undercut. Each wire in the cable has a
resistance of 0.2 Ohm/m. When calculating the
drop in voltage, account for the feed and return
lines, i.e. the total resistance is 0.4 Ohm/m.
For the accessory cable resistance, see 9.7 on
page 24.
BML SL1-ALZ1- _ _ ZZ -ABA _ - S284/KA _ _
Absolute magnetic encoder system
english
Summary of Contents for BML SL1-ALZ1 ZZ-ABA S284/KA Series
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