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6.
DIAGNOSTICS
Any system faults or malfunctions are indicated by the E32A interface.
6.1 E32A: Alarms
When an alarm condition is present:
the movement of the arm connected to the E32A is interrupted;
the red LED L2 on the container lights up;
the NO Fault output signal is reset to the low logic level; this line can be tested to detect the absence
of alarms;
yellow LED L2 indicates the alarm conditions by generating flashing sequences;
The E32A waits until the cause of the alarm is eliminated and a valid operating command is issued;
The alarm condition is displayed as long as the alarm is present;
It is cleared when normal conditions are restored.
6.1.1 Alarm indication
When an alarm is present, the yellow LED indicates the alarm conditions by generating sequences of flashes
at two second intervals. The number of flashes in the sequence identifies the alarm as shown in the table
below.
Event
TIMEOUT_ERROR
INVALID_UP_
DOWN_START
EXT_IO_FAULT
OPEN_LOAD
SHORT_TO_VS_
OR_LOAD
SHORT_TO_GND
TEMPERATURE_
WARNING
POWER_SUPPLY_
FAIL
No. of
Meaning
flashes
2
Electric arm movement was not completed within the maximum
time allowed.
3
Electric arm simultaneous request for movement towards
measuring position (ARC) and home position (MRC).
4
Short-circuit to earth in logic outputs circuits to PLC.
5
Driver detects open circuit at motor connection terminals.
6
Driver detects short-circuit at motor connection terminals or one of
the terminals appears to be connected to the power supply
voltage.
7
Driver detects at least one of the terminals connected to earth.
8
Motor driver temperature too high.
9
Motor driver power supply is insufficient.
Section 6. DIAGNOSTICS
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