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Pin
No.
Schemat
ic
Acronym
Function
Description
Reading Using a Digital Voltmeter
22
UINVEX
Bus Voltage scaled
down
Signal proportional to UDC
OV switch must be off
- 1 VDC = 450 VDC [T4/T5]
- 1 VDC = 610 VDC [T7]
23
VDD
+24 VDC power supply
Yellow LED indicates voltage is present.
+24 VDC regulated supply
+23 to 25 VDC
24
VCC
+5.0 VDC regulated
supply. +4.75-5.25 VDC
The green LED indicates voltage is present.
+5.0 VDC regulated 4.75 to 5.25 VDC
25
GUP_T
IGBT gate signal,
buffered, U phase,
positive. Signal
originates on 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
@
10Hz
2.2–2.5 VDC
Equal on all phases
TP25-TP30
26
GUN_T
IGBT gate signal,
buffered, U phase,
negative. Signal
originates on 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
@
10Hz
2.2–2.5 VDC
Equal on all phases
TP25-TP30
27
GVP_T
IGBT gate signal,
buffered, V phase,
positive. Signal
originates on 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
@
10Hz
2.2–2.5 VDC
Equal on all phases
TP25-TP30
28
GVN_T
IGBT gate signal,
buffered, V phase,
negative. Signal
originates on 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
@
10Hz
2.2–2.5 VDC
Equal on all phases
TP25-TP30
29
GWP_T
IGBT gate signal,
buffered, W phase,
positive. Signal
originates on 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
@
10Hz
2.2–2.5 VDC
Equal on all phases
TP25-TP30
30
GWN_T
IGBT gate signal,
buffered, W phase,
negative. Signal
originates on 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
@
10Hz
2.2–2.5 VDC
Equal on all phases TP25-TP30
Special Test Equipment
High Power Service Manual for Modular F Frame Drives
MG90K202 - VLT
®
is a registered Danfoss trademark
129
10
10