4-4
Diagnostics/Troubleshooting
P/N 0013-1025-001 Rev F
Light Emitting Diodes
Power LED (Green)
The flyback power supply is monitored by this LED. Whenever power is applied to the drive,
this indicator will be on.
If any of the following conditions occur, the output stage will be disabled also.
To clear any fault, the Inhibit input must be switched to the disabled condition to reset the fault
latch.
Figure 4.2 shows the approximate length of time that current exceeding average current can be
drawn through the drive before the drive faults.
T
ABLE
4.2
LED Fault Conditions
Fault LEDs (Red)
Condition
O-Current
This LED will turn on due to three conditions:
(1)Short circuit overcurrent
(2)Excessive average current (see figure below)
(3)FAC or RAC in an invalid state.
(0.9mA < opto source/sink current < 1.4mA)
O-Volt
Bus overvoltage (above 140 VDC)
O-Temp
Heat sink overtemperature (above 90ºC)
Intro
F
IGURE
4.2
Excessive Current Timeout Diagram
Excessive Current Timeout
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
Tim e (seconds)
% Peak Output Current
1.8 Sec.
Summary of Contents for MAX-430
Page 36: ...3 8 Applying Power for the First Time P N 0013 1025 001 Rev F ...
Page 42: ...4 6 Diagnostics Troubleshooting P N 0013 1025 001 Rev F ...
Page 50: ...6 6 Component Ordering Information P N 0013 1025 001 Rev F ...
Page 52: ...7 2 Reference Drawings P N 0013 1025 001 Rev F Intro FIGURE 7 2 Simplified Circuit Diagram ...
Page 54: ...A 2 Differences from the MAX 400 P N 0013 1025 001 Rev F ...
Page 58: ...Help 4 Documentation Improvement Form P N 0013 1025 001 Rev F Second Fold Tape First Fold ...
