Nord Drivesystems SK 300E Series, Supplementary Manual

Page: 14 / 76

NORD USS and Modbus RTU Manual
14 Subject to technical amendments BU 0050 GB-3111
1.2.2.4 Customer unit Standard I/O
(SK CU1-STD, Option)
The standard I/O of the customer interface( C ustomer U nit) provides
sufficient control terminals for most applications and it is fully
terminal-compatible with NORDAC
vector mc .
.
1 analog differential input, 4 digital inputs and 1 analog output are
available for control of the frequency inverter.
Readiness for operation is shown via the 2 relay contacts and a
mechanical motor brake is activated at the correct time.
The connected frequency inverter can be accessed via the RS485
interface . In addition to the entire range of control functions,
parameterisation is also possible.
The NORD CON software can be used to carry out a simple function
test of the serial interface and the parameterisation of the inverter.
For this, an interface converter (e.g. SK IC1-232/485) must be used
between
the PC and the inverter. Following successful
parameterisation, the complete data set can be stored as a file by
means of NORD CON.
Connector Functions Maximum cross-section Parameter
X1.1 Output relay 1,5 mm
2
P434 ... P443
X1.2 Analog signals IN / OUT 1,0 mm
2
P400 ... P419
X1.3 Digital inputs 1,0 mm
2
P420 ... P423
X1.4 Bus signals / power supply 1,0 mm
2
P503 ... P548
74 RS485 -
X
1
.1
X
1
.2
X
1
.3
X
1
.4
11 VREF 10V
12 AGND /0V
13 AIN1 -
14 AIN1 +
17 AOUT1
21 DIG IN 1
22 DIG IN 2
23 DIG IN 3
24 DIG IN 4
42 VO +15V
41 VO +5V
40 GND /0V
73 RS485 +
01 REL1.1
02 REL1.2
03 REL2.1
04 REL2.2
NOTE: All control voltages are based on a common reference potential!
Potentials AGND /0V and GND /0V are internally linked in the device.
The maximum total current 5/15V is 300mA!
Potentialfreier Kontakt oder
Ausgang einer SPS: 7,5...33V
(low = 0...3,5Volt)
Differenzeingang 0...10V
0...20mA
Voltage supply: 5V
RS 485 (USS protocol)
5V supply for ParameterBox,
p-box or motor thermistor
Data cables USS protocol
Digitale Eingänge:
DIG IN 1 = Ein rechts
DIG IN 2 = Ein links
DIG IN 3 = Parametersatz bit 0
DIG IN 4 = Festfrequenz 1
Ausgangsrelais:
max. 2,0A
28V DC /230V AC
U
REF
= 10V / I
max
= 10 mA
Analogausgang SPS: 0...10V
oder Potentiometer: 2...10k

Spannungsversorgung: 15V
Termination resistor for
RS 485 interface (120

)
Zuschaltbarer Bürdenwiderstand für
0/4...20mA Analogeingang (250

)
U/I switching
Analog input,
250

ON = Current,
OFF = Voltage
Termination
resistor
RS 485
120

O
F
F
ON
O
F
F
ON