Danfoss VLT AAF006 Service Manual page 91

Special Test Equipment
Pin Sche
No. matic
Acron
ym
1 IU1
2 IV1
9 9
3 IW1
4 COMM
ON
5 AMBT
6 FANO
7 INRUS
H
8 RL1
9
10
11 VPOS
12 VNEG
9-2
Function Description
Current sensed,
U phase, not
conditioned
Approx 400 mV RMS @100% load
Current sensed,
V phase, not
conditioned
Approx 400 mV RMS @100% load
Current sensed,
W phase, not
conditioned
Approx 400 mV RMS @100% load
Logic common This common is for all signals.
Ambient temp. Used to control FAN high and low fan speeds.
Control Card Signal from the control card to turn the fans on and off.
signal
Control Card Signal from the control card to start gating the SCR front end
signal
Control Card Signal from Control Card to provide status of Relay 01
signal
Not used
Not used
+18 V DC The red LED indicates voltage is present between VPOS and VNEG
regulated terminals.
supply +16.5 to
19.5 V DC
-18 V DC The red LED indicates voltage is present between VPOS and VNEG
regulated terminals.
supply
-16.5 to 19.5 V
DC
MG90Z122 - VLT
VLT Advanced Active Filter AAF006 D and E Frames Service Manual
®
is a registered Danfoss trademark
Reading Using a Digital
Voltmeter
.937 V ACpeak @ 165% of CT
current rating. AC waveform @
output frequency of the filter.
.937 V ACpeak @ 165% of CT
current rating. AC waveform @
output frequency of the filter.
.937 V ACpeak @ 165% of CT
current rating. AC waveform @
output frequency of the filter.
1 V DC approximately equal to
25C
0 V DC – ON command
5 V DC – OFF command
3.3 V DC – SCRs disabled
0 V DC – SCRs enabled
0 V DC – Relay active
0.7 V DC – inactive
+18 V DC regulated supply
+16.5 to 19.5 V DC
-18 V DC regulated supply
-16.5 to 19.5 V DC