WEG WG20 - Page 37

WG20 Geared Motors | E-37
18.6.4.Encoder
Figure 15: Rectier
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1 2 3 4 5 6
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+
Power supply:
The DC brake coil is normally supplied with power from a rectier installed in the motor terminal box. The rectiers are equip-
ped with varistors to protect them against overvoltage. Max. ambient temperature for rectiers is +80 °C.
For starting frequency above 1/s, contact us for rectier loading capacity!
The braking system is connected with a rectier installed in the terminal box in accordance with the enclosed circuit dia-
gram.
Half-wave rectier (standard version) - Connection:
■ AC voltage 100% e.g. 400 V~
■ DC voltage 45% e.g. 180 V=
Bridge rectier - Connection:
■ AC voltage 100% e.g. 230 V~
■ DC voltage 90% e.g. 207 V=
If a brake motor is operated with a frequency converter, connect the brake coil to an external power
supply.
This encoder is a precision measuring instrument. Always observe the information and instructions of the datasheet to
ensure trouble-free function and to maintain warranty claims.
Please observe absolutely the following points:
■ It is not permissible to dismantle the encoder entirely or in part or to modify it.
■ Do not alter the shaft (by grinding, sawing, drilling, etc.), otherwise the accuracy of the encoder and the reliability of
bearing and seal will suffer.
■ Never align the instrument with a hammer.
■ It is imperative to avoid impact loads.
■ Observe maximal radial and axial loads to the encoder shaft under any circumstances.
■ Do not connect encoder and drive rigidly to one another at shafts and anges.
■ Never use the assembled encoder to lift the drive-unit.
■ Never step onto the encoder.
ATTENTION!
Connection to terminal board
(AC, V~)
Contact for DC switching
Brake
Type Voltage Pulses Output signal
Kübler 5020 10 - 30 V 1024 HTL
Kübler A02H (Heavy Duty) 10 - 30 V 1024 HTL
Technical Data Standard Encoder: