Technical Explanation
SKiiP
®
3 Parallel Board
© by SEMIKRON
2017-08-30
– Rev02
13 / 20
9.2
Measurement of SKiiP
®
3 temperature or DC-link voltage
SKiiP
®
3 is either configurated for DC-link voltage measurement (U-option) or for temperature measurement.
The corresponding analogue signal from connected SKiiP
®
3 subsystem is handled to the SKiiP
®
3 Parallel
board. The parallel board compares the values measured by each SKiiP
®
3 subsystem and provides the
maximal value to the controller. The analogue signal is available on the DIN connector Pin 12 with the
characteristic given in the Table 7. For futher information please refer to the Technical explanation SKiiP
®
3.
Table 7:
Signal characteristics of current measurement
Parameters U
TEMP
Specification @ -40°C <= T
a
<= 85°C
Output signal
TEMP_ANA / GND_ANA or UDC_ANA / GND_ANA
Max. output current I
T-out
5mA
Output voltage range V
T-Out
0V to 10V
Analogue temperature signal TEMP_ANA @
115°C (typ)
Alternatively analogue DC-link volatge signal.
Specification see SKiiP
®
3 data
sheet/TESKiiP
®
3.
10V
Analogue temperature signal TEMP_ANA @
30°C
Alternatively analogue DC-link volatge signal.
@ V
DC
=0V.
1V
0V
Amplification ratio
1 (signal ratio identical to the connected SKiiP
®
3)
Signal bandwidth (-3dB)
(Input to Output)
Max. 50 Hz
Signal accuracy (Input to Output; over full temp.
range)
± 1%
2)
2)
Considering the aging drift of precision input resistors the accuracy can maximal increase to ± 1.6% for
temperature signal over full temperature range.
