Danfoss VLT HVAC Drive FC100 Service Manual page 130

Special Test Equipment
Pin Schemat Function
No. ic
Acronym
22 UINVEX Bus Voltage scaled
down
23 VDD +24 VDC power supply
24 VCC +5.0 VDC regulated
supply. +4.75-5.25 VDC
25 GUP_T IGBT gate signal,
buffered, U phase,
positive. Signal
originates on Control
Card.
26 GUN_T IGBT gate signal,
buffered, U phase,
negative. Signal
originates on Control
Card.
27 GVP_T IGBT gate signal,
buffered, V phase,
positive. Signal
originates on Control
Card.
28 GVN_T IGBT gate signal,
buffered, V phase,
negative. Signal
originates on Control
Card.
29 GWP_T IGBT gate signal,
buffered, W phase,
positive. Signal
originates on Control
Card.
30 GWN_T IGBT gate signal,
buffered, W phase,
negative. Signal
originates on Control
Card.
High Power Service Manual for Modular F Frame Drives
Description
Signal proportional to UDC
Yellow LED indicates voltage is present.
The green LED indicates voltage is present.
Input A
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms 50Us/Div
2v/div 100us/div Run@10Hz
Input A
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms 50Us/Div
2v/div 100us/div Run@10Hz
Input A
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms 50Us/Div
2v/div 100us/div Run@10Hz
Input A
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms 50Us/Div
2v/div 100us/div Run@10Hz
Input A
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms 50Us/Div
2v/div 100us/div Run@10Hz
Input A
8.00
6.00
4.00
2.00
0.00 V
-2.00
-4.00
-6.00
-8.00
-4.0ms 50Us/Div
2v/div 100us/div Run@10Hz
®
MG90K202 - VLT is a registered Danfoss trademark
Reading Using a Digital Voltmeter
OV switch must be off
- 1 VDC = 450 VDC [T4/T5]
- 1 VDC = 610 VDC [T7]
+24 VDC regulated supply
+23 to 25 VDC
+5.0 VDC regulated supply +4.75 to 5.25 VDC
2.2–2.5 VDC
Equal on all phases
TP25-TP30
2.2–2.5 VDC
Equal on all phases
TP25-TP30
2.2–2.5 VDC
Equal on all phases
TP25-TP30
2.2–2.5 VDC
Equal on all phases
TP25-TP30
2.2–2.5 VDC
Equal on all phases
TP25-TP30
2.2–2.5 VDC
Equal on all phases TP25-TP30
10 10
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