2 Assembly and installation
BU 0500 GB Subject to technical alterations 33
Terminal Function
[factory setting]
Data Description / wiring suggestion Parameter
Terminal block X5 For SK 5x0E, internal 15V supply
21 DIN1
digital input 1
[ON right]
P420
22 DIN2
digital input 2
[ON left]
P421
23 DIN3
digital input 3
[parameter set bit0]
P422
24 DIN4
digital input 4
[fixed frequency 1,
P429]
7.5...30V, R
i
=6.1kΩ
P423
25 DIN5 digital input 5
[no function]
2.5...30V, R
i
=2.2kΩ,
only this input is
suitable for evaluation of
the thermistor with 5V
Each digital input has a reaction time
of 1 – 2ms.
Connection with internal 15V
:
motor - PTC
21
22
23
24
25
42
40
41
15V
Connection with external 7,5-30V:
41
40
42
25
24
23
22
21
GND/0V
7.5...30V
motor - PTC
NOTE: For the motor thermistor
(DIN5) P424 = 13 must be set.
P424
42 VO 15V 15V supply voltage
15V ± 20%
Supply voltage provided by the
freequency inverter for connection to
the digital inputs or the supply of a 10-
30V encoder.
40 GND /0V Reference potential
for digital signals
0V digital Reference potential
41 VO 5V 5V supply voltage
5V ± 20%
Voltage supply for motor-PTC
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