SK 500E – Brief instructions for frequency inverters
24 BU 0540 EN-1516
Terminal block X6 – Encoder
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SK 500E SK 505E SK 510E SK 511E SK 515E
SK 520E SK 530E SK 535E
√ √ √
Terminals X6:
40 51 52 53 54
GND/0V ENC A+ ENC A- ENC B+ ENC B-
Name
Terminal Function
[factory setting]
Data Description / wiring suggestion Parameter
40
for digital signals
0V digital
The incremental encoder input can be
used for the exact regulation of the
speed of rotation, additional set point
functions or positioning (SK530E and
above).
An encoder system with 10-30V supply
voltage must be used in order to
compensate for voltage drop in long
cable connections.
Note: Encoders with 5V supply are not
suitable in order to set up a system
which operates reliably.
51 Track A
TTL, RS422
500…8192Imp./Rpm.
Limiting frequencies:
max. 205 kHz
P300
52 Track A inverse
53 Track B
54 Track B inverse
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Terminal block X7 – Digital I/O
Relevance
SK 500E SK 505E SK 510E SK 511E SK 515E
SK 520E SK 530E
SK 535E
√ √
Terminals X7:
73 74 26 27 5 7 42 40
RS485 + RS485 - DIN6 DIN7 DOUT1 DOUT2 VO 15V GND/0V
Designation
Terminal Function
[factory setting]
Data Description / wiring suggestion Parameter
73
Data cable RS485
Baud rate
9600…38400Baud
Termination resistor
R=120Ω
BUS connection parallel to RS485 on
RJ12 plug
NOTE: The termination resistance of
DIP switch 1 (see RJ12/RJ45) can also
be used for terminal 73/74.
P503
P509
74
26 Digital input 6
[no function]
7.5...30V, R
i
=3.3kΩ
As described for terminal block X5, DIN1
to DIN5.
Not suitable for the evaluation of a motor
thermistor.
P425
27 Digital input 7
[no function]
P470
5 Output 3 (DOUT1)
[no function]
Digital output
15V, max. 20 mA
With inductive loads:
provide protection via free-
wheeling diode.
For evaluation in a control system. The
scope of functions corresponds to that of
the relay (P434).
P450
7 Output 4 (DOUT2)
[no function]
P455
42 15V supply voltage
output
15V ± 20%
max. 150 mA (output)
short-circuit resistant
Voltage supply for connection to the
digital inputs or the supply of a 10-30V
encoder
40 Reference potential
for digital signals
0V digital
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