NORD Drivesystems BU0530 User Manual
Page 37
3 Assembly and installation
BU 0530 GB-3712
37
Relevance
SK 500E
SK 505E
SK 510E
SK 511E
SK 515E
SK 520E
SK 530E
SK 535E
SK 540E
SK 545E
√
Terminals X5:
21
22
23
24
39
38
44
40
DIN1
DIN2
DIN3
DIN4
TF-
TF+
VI 24V
GND / 0V
Designation
Terminal Function
[factory setting]
Data
Description / wiring suggestion
Parameter
SK 540E
and above
21
Digital input 1
[ON right]
7.5...30V, R
i
=6.1k
Not suitable for
thermistor evaluation.
HTL encoders can
only be connected to
DIN2 and DIN4
Limiting frequencies:
max.
10 kHz
min.
15 Hz
Each digital input has a reaction
time of ≤ 5ms.
21
22
23
24
39
38
44
40
motor - PTC
GND / 0V
18
… 30V
P420 [-01]
22
Digital input 2
[ON left]
P420 [-02]
23
Digital input 3
[parameter set bit0]
P420 [-03]
24
Digital input 4
[Fixed frequency 1,
P429]
P420 [-04]
39
Thermistor input -
potential isolated
thermistor input, which
cannot be disabled,
for monitoring the
motor temperature
with a PTC
38
Thermistor input +
44
24V supply voltage
input
18…30V
at least 800mA (input)
Voltage supply for the FI control unit.
This is essential for the function of
the frequency inverter.
40
Reference potential
for digital signals
0V digital
Reference potential