2 Assembly and installation
BU 0540 EN-1516
23
Relevance
SK 500E
SK 505E
SK 510E
SK 511E
SK 515E
SK 520E
SK 530E
SK 535E
√
√
√
Terminals X5:
21
22
23
24
25
44*
40
41
* Terminal 44:
up to Size 4: VI
Size 5 and above:
VO
DIN1
DIN2
DIN3
DIN4
DIN5
V…24V GND/0V
VO 5V
Designation
Terminal Function
[factory setting]
Data
Description / wiring suggestion
Parameter
21
Digital input 1
[ON right] 7.5...30V, R
i
=6.1k
Ω
Not
suitable for thermistor
evaluation.
HTL encoders can only be
connected to DIN2 and
DIN4
Limiting frequency:
max.
10 kHz
Each digital input has a reaction time of
≤ 5ms.
21
22
23
24
25
44
40
41
18 … 30V
motor - PTC
GND / 0V
P420
22
Digital input 2
[ON left]
P421
23
Digital input 3
[parameter set bit0]
P422
24
Digital input 4
[Fixed frequency 1,
P429]
P423
25
Digital input 5
[no function]
Only S1 – S4
2.5...30V, R
i
=2.2k
Ω
Not
suitable for evaluation
of a safety device.
Suitable for thermistor
evaluation with 5V.
NOTE:
For the motor
thermistor P424 = 13 must
be set.
Size 5 and above
Thermistor on X13:T1/T2
P424
44
Size 1 to Size 4
VI 24V
supply voltage
input
18…30V
min. 800 mA (input)
Voltage supply for the FI control unit. Is
essential for the function of the
frequency inverter.
Size 5 and above
VO 24V
supply voltage
output
24V ± 25%
max. 200 mA (output)
short circuit resistant
Supply voltage provided by the
frequency inverter for connection to the
digital inputs or the supply of a 10-30V
encoder.
The 24V control voltage is generated by
the FI, however it can also be supplied
via the terminals X12:44/40 (Size 8 and
above: X15:44/40). Supply via terminal
X5:44 is not possible.
40
Reference potential for
digital signals
0V digital
Reference potential
41
5V supply voltage
output
5V
±
20%
max. 250 mA (output)
short-circuit resistant
Voltage supply for motor-PTC
Pos: 83 /Anl eitungen/Elektroni k/FU und Starter/2. M ontage und Install ati on/El ektrischer Anschluss/SK 500E/2.10.5 Elektrischer Anschl uss Steuerteil- Kl emmenblock X6 – Encoder [SK 500...535E] @ 1\mod_1341401891684_388.docx @ 29313 @ 5 @ 1
