NORDAC SK 5xxE Manual
66
Subject to technical alterations
BU 0500 GB
4.3 KTY84-130 Connection (software version 1.7 and above)
The current vector regulation of the SK 5xxE series can be further optimised by the use of a KTY84-130
temperature sensor (R
th(0°C)
=500
Ω
, R
th(100°C)
=1000
Ω
). In particular there is the advantage that after an
intermediate mains switch-off during operation the temperature of the motor is measured directly and therefore
the actual value is always available to the frequency inverter. With this, the regulator can always achieve an
optimum precision of speed.
Connections (Analog input 2)
Parameter settings (Analog input 2)
The following parameters must be set for the function of the KTY84-130.
1. The motor data
P201-P207
must be set according to the rating plate.
2. The motor stator resistance P208 is determined at 20°C with
P220=1
.
3. Function analog input 2,
P405=48
(Motor temperature)
4. The mode for analog input 2,
P406=1
(negative temperatures are also measured)
5. Adjustment of analog input 2:
P407=1,54V
and
P408=2,64V
6. Adjust time constants:
P409=400ms
(Filter time constant is a maximum)
7. Motor temperature control: P001=23 (Temperature display, operation display SK TU3-CTR / SK CSX-0
Note
1. Excess temperature of the motor is also monitored
and at 155°C (switching threshold for the
thermistor) causes the drive unit to shut down with
error message E002.
2. To determine the stator resistance of the motor,
the temperature range 15… 25°C should not be
exceeded.
R
V
= 2,7 kOhm
AIN 2
GND/0V
VO 10V
11
12
14
16
17
KTY84-130
-1R2
+1R1
X4
P 0 - -
D isplay parameters
b
is
_ _ _ _
P 1 - -
Basic parameters
P 2 - -
Motor data
P 4 - -
Control terminals
P 5 - -
Additional
parameters
P 7 - -
Information
P 2 0 1
N ominal motor freq.
10 ... 400Hz
P 4 0 6
Mode analog input 2
P406=1 (0...10V)
P 2 0 7
Motor switching
Star/delta
P 2 0 8
Stator resistance
0 … 300
Ω
P 2 2 0
Parameter identification
P220=1 / 2
P 4 0 7
Adjust. analog input 2
P407=1,54V
P 4 0 5
Analog input function 2
P405=48 (Motor temp.)
P 4 0 8
Adjust. analog input 2
P408=2,64V
P 0 0 1
Motor temperature
-50 ... 150°C
P 4 0 9
Analog input filter 2
P409=400ms
