Eurotherm 590A SERIES, Product Manual

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LED3: 3-PHASE POWER SUPPLY
ON:
3-Phase power supply connected.
OFF: a) 1 Phase or more not connected.
b) Main contactor not closed.
c) Main fuse failure check .
d) Coding fuse failure check FS2, FS3, FS4.
LED4: NORMAL/OVER CURRENT FAULT
ON:
Armature Current Normal.
OFF: Armature Current has exceeded 300% full load. In this condition the main contactor will be
automatically tripped. See Option Switch S8/5 and S8/7 .The entire system must be checked thoroughly to
ascertain the cause of the failure. The drive can be restarted after such a fault by either pressing the "FAULT
RESET" pushbutton or externally by ap24V (from terminal 38) to terminal 39 and removing the start
input.
LED5: RUN/INHIBIT
ON:
Indicates that both "READY" signal (on terminal 35) and "ENABLE" signal (on terminal 32 and
diagnostic 5) are present. The drive will now start.
OFF:
Either "READY" or "ENABLE" signals have been removed.
NOTES:
a)
The "READY" signal depend upon each of the following signals being in its enabled condition:
i) Single phase (auxiliary supply) On/Off (LED1).
ii) 45-65HZ Enable/Inhibit (LED2).
iii) 3-Phase (Main Supply) On/Off (LED3).
iv) Overcurrent trip (LED4).
v) Motor Thermistor/Microtherm (DIAGNOSTIC 6).
vi) Field Fail (DIAGNOSTIC 7).
vii) Auxiliary Enable (DIAGNOSTIC 8).
viii) Start Instruction (DIAGNOSTIC 9).
b) The "ENABLE" signal depends on the external connection of +24V (Nominal) to Enable terminal
32, normally from START SUPPLY terminal 31.
LED6: ROTATING/STANDSTILL
ON:
Indicates the motor shaft is rotating. (Speed signal exceeds STANDSTILL THRESHOLD set by
potentiometer P4. Adjustment range 0.5 to 4%).
OFF:
Motor shaft speed is less than standstill threshold.
LED7: HEALTH
ON:
Drive Health normal.
OFF: Drive in fault condition.
NOTES:
a)
In the STOP condition the "HEALTH" signal only requires that the internal supply rails are present.
b) In the START condition the "HEALTH signal requires the READY signal (terminal 35) to be
present.
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