SK 500E – Users Manual for Frequency Inverters
88
BU 0500 EN-3021
4.4 KTY84-130 connection (above software version 1.7)
The current vector control of the SK 500E 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 optimum speed precision.
Connections (Example SK 500E, analog input 2)
Parameter settings (ExampleSK 500E, analog input 2)
The following parameters must be set for the function of the KTY84-130.
1. Set the motor data
P201-
P207
according to the type
plate
2. Determine the motor stator
resistance P208 at 20°C
with
P220=1
.
3. Analog input 2 function,
P405=48
(Motor
temperature)
4. Analog input 2 mode 2,
P406=1
(taking negative
temperatures into account)
5. Matching of analog input 2:
P407= 1.54 V
and
P408= 2.64 V
(with R
V
=
2.7
kΩ)
6. Adjust time constants:
P409=400ms
(Maximum
value of filter time constant)
7. Motor temperature control:
P001=23 (Temperature
display, operation display SK
TU3-CTR / SK CSX-0)
P 0 - -
Display parameters
to
_ _ _ _
P 1 - -
Basic parameter
P 2 - -
Motor data
P 4 - -
Control terminals
P 5 - -
Additional parameter
P 7 - -
Information
P 2 0 1
Nominal motor frequency
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
Adjustment of analog input 2
P407=1.54V
P 4 0 5
Analog input function 2
P405=48 (Motor temperature
)
P 4 0 8
Adjustment of 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
Note
Temperature ranges
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.
To determine the stator resistance of the motor, the temperature range 15 … 25°C should not be exceeded.
Pos: 118 /Anleitungen/Elektronik/FU und Starter/4. Inbetriebnahme/SK 1xxE, SK 2xxE/KTY84-130 Information - Polarität beachten [SK 1xxE, SK 2xxE, SK 5xxE] @ 10\mod_1456847395379_388.docx @ 311160 @ @ 1
Information
Pay attention to polarity
KTY sensors are wired semiconductors that must be operated in the conducting direction. In order to do this, the
anode must be connected to the "+" contact of the analogue input. The cathode must be connected to the "-"
ground or ground contact of the analogue input.
Failure to observe this can lead to erroneous measurements. Motor winding protection will no longer be
guaranteed.
R
V
= 2,7 kOhm
AIN 2
GND/0V
VO 10V
11
12
14
16
17
KTY84-130
-1R2
+1R1
X4
Summary of Contents for BU 0500
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