NORD Drivesystems BU0540 - Manual (Page 31)

2 Assembly and installation
BU 0540 GB-1013 31
Incremental encoder
According to the resolution (pulse number), incremental encoders generate a defined number of
pulses for each rotation of the encoder shaft (Track A / Track A inverse) With this, the precise speed
of the encoder or motor can be measured by the frequency inverter. By the use of a second track (B /
B inverse) shifted by 90° (¼ period), the direction of rotation can also be determined.
The supply voltage for the encoder is 10-30V. The voltage source can be an external source or the
internal voltage (according to the frequency inverter version: 12V /15V /24V).
Function
Cable colours,
for incremental encoder
Connections for SK 53xE
Terminal block X5 or X6
10-30V supply brown / green
42(/44 /49)
15V (/24V /12V)
0V supply white / green 40 GND/0V
Track A brown 51 ENC A+
Track A inverse green 52 ENC A-
Track B grey 53 ENC B+
Track B inverse pink 54 ENC B-
Cable shield connected to a large area of the frequency inverter housing or shielding angle
Table 6: Colour and contact assignments for NORD TTL incremental encoders
Note Incremental encoder data sheet
If there are deviations from the standard equipment (Type 5820.0H40, 10-30V encoder, TTL/RS422) for the
motors, please note the accompanying data sheet or consult your supplier.
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