TECHNICAL DOCUMENTATION
12
P
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l
iminar
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www.inpower-sys.com
1IPSE1A33-60
LED D
IAGNOSTICS
11.
The system status during normal operation or fault is indicated by eight LEDs. All LEDs are on the driver
board.
The LEDs indicate the following conditions:
LED
Description
Switch
D 15
no light:
the driver is receiving switch OFF signal
red light:
the driver is receiving switch ON signal
is blinking:
input fi lter detected problem with input switching signal, i.e. too high
frequency, second switching pulse very close to the fi rst one or
incorrect delay between two pulses
U sat - 1
D 16
no light:
system is working in nominal operation
red light:
U sat – 1 protection was operating
U sat - 2
D 17
no light:
system is working in nominal operation
red light:
U sat – 2 protection was operating
U sat - 3
D 18
no light:
system is working in nominal operation
red light:
U sat – 3 protection was operating
U sat – 4
D 19
no light:
system is working in nominal operation
red light:
U sat – 4 protection was operating
di/dt
D 1
no light:
system is working in nominal operation
red light:
di/dt protection was operating
Reset
D 14
no light:
system is working in nominal operation
red light:
reset of the driver or secondary voltage is below 11V
Voltage
supply
D 20 no light:
secondary supply voltage is missing
green light:
system is working in nominal operation
The failure indications are illuminated until the driver is reset (switch-off of the driver power supply).
