Pin
No.
Sche
matic
Acron
ym
Function
Description
Reading Using a Digital
Voltmeter
24
VCC
+5.0 V DC
regulated
supply. +4.75–
5.25 V DC
The green LED indicates voltage is present.
+5.0 V DC regulated supply
+4.75–5.25 V DC
25
GUP_T IGBT gate
signal, buffered,
U phase,
positive. Signal
originates on
the control
card.
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms
50Us/Div
Input A
130BX153.10
2v/div 100us/div Run@10 Hz
2.2–2.5 V DC
Equal on all phases
TP25-TP30
26
GUN_T IGBT gate
signal, buffered,
U phase,
negative. Signal
originates on
the control
card.
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms
50Us/Div
Input A
130BX153.10
2v/div 100us/div Run@10 Hz
2.2–2.5 V DC
Equal on all phases
TP25-TP30
27
GVP_T IGBT gate
signal, buffered,
V phase,
positive. Signal
originates on
the control
card.
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms
50Us/Div
Input A
130BX153.10
2v/div 100us/div Run@10 Hz
2.2–2.5 V DC
Equal on all phases
TP25-TP30
28
GVN_T IGBT gate
signal, buffered,
V phase,
negative. Signal
originates on
the control
card.
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms
50Us/Div
Input A
130BX153.10
2v/div 100us/div Run@10 Hz
2.2–2.5 V DC
Equal on all phases
TP25-TP30
Special Test Equipment
VLT Advanced Active Filter AAF006 D and E Frames Service Manual
9-4
MG90Z122 - VLT
®
is a registered Danfoss trademark
9
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