Frequently Asked Questions about 7VXLD533CD01
What does the diagnostic readout 010101 mean?
The diagnostic readout 010101 has a fault number FL85 and a fault name A5FSH and means the SCR A5F or A2R is shorted (L, T).
-A High current test may be enabled - run a low current test.
-Check for shorted out SCR and replace them.
What does the diagnostic readout 010110 mean?
The diagnostic readout 010110 has a fault number FL86 and a fault name A6FSH which means the SCR A6F or A3R is shorted (L, T).
-The High current test may be enabled - run a low current test.
-Check for a shorted SCR and replace.
What does the diagnostic readout 011111 mean?
The diagnostic readout 011111 has a fault number FL95 and a fault name WATCH and means FUP watchdog has detected RUP has misoperated (L, T).
-See FL58
-FL58 means the U4 is not communicating correctly with the U5.
-Check for PROM revision compatibility
-Digital tach pulse rate exceeds 41,000 Hertz.
-Noise on the tach input. .
What does the diagnostic readout 100000 mean?
The diagnostic readout 100000 has no fault number and a fault name PASSEDand means the annunciates when SCR test has passed. NOTE that this is not a fault condition.
What does the diagnostic readout 100001 mean?
The diagnostic readout 100001 has a fault number FL97 and a fault name OCTFL and means the SCR open circuit test failed (L, T).
-A low current test may be enabled - run a high current test.
-The FU4-DC fuse is open (regenerative drive only).
-The Armature circuit is open.
-Brushes are missing or are disconnected.
-The 5PL is disconnected or damaged.
-The Main contactor is not picking up.
-Loss of current feedback - check 1PL-20 and DRPL.
-The P2-CFB ZERO on Power Supply card is misadjusted.
