ITT PumpSmart PS220, Configuration And Operation Manual

Page: 138 / 300

PS220 Configuration & Operation Guide
137 PS220
Function & F
eatures
Input L1 Input L2 Input L3
Red Probe on UDC+
terminal and black
probe on the Input
terminal
Black Probe on
UDC+ terminal and
red probe on the
Input terminals
Red Probe on UDC-
terminal and black
probe on the Input
terminal
Black Probe on UDC-
terminal and red
probe on the Input
terminals
Rectifier
The rectifier circuit
converts the incoming
AC voltage to rippled
DC
DC Link
The inductor and
capacitor behave like a
Low pass filter and
smoothen out the
rippled DC voltage
c
o
n
t
r
o
l
Inverter
IGBT’s convert the DC
voltage to a Pulse
width modulated
output waveform
Motor
UDC+
UDC-
L1
L2
L3
T1U
T2V
T3W
Notes:
The above test is used to verify if the input rectifier bridge on the drive is faulty.
Possible causes of failure:
• High input voltage spikes or surges can cause damage to input bridge.
• A Short Circuit on the output could cause damage the output bridge.