NORD Drivesystems BU0530 User Manual
Page 36
Functional safety with NORD SK 500E frequency inverters
36
BU 0530 GB-3712
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
42
40
DIN1
DIN2
DIN3
DIN4
TF-
TF+
VO 15V
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.
Control with internal 15V:
21
22
23
24
39
38
42
40
motor - PTC
15V
Control with external 7.5-30V:
21
22
23
24
39
38
42
40
motor - PTC
GND / 0V
7.5
… 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 +
42
15V supply voltage
output
15V
20%
Supply voltage provided by the
frequency inverter for connection to
the digital inputs or the supply of a
10-30V encoder.
40
Reference potential
for digital signals
0V digital
Reference potential