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4. OPERATION AND DISPLAY
4. OPERATION AND DISPLAY
On the interface unit display (5-digit, seven-segment display), check the status of communication with the
servo system controller at power-on, check the slot number, and diagnose a fault at occurrence of an
alarm.
4.1 Display flowchart
When powered on, the MELSERVO-J2M is placed in the automatic scroll mode in which the statuses of
the interface unit/drive units installed on the base unit appear at intervals of 2 seconds in due order. At
this time, open slot numbers do not appear.
In the initial status, the indication is in the automatic scroll mode. Pressing the "SET" button switches the
automatic scroll mode to the fixed mode. In the fixed mode, pressing the "UP" or "DOWN" button displays
the status of the subsequent-slot drive unit.
If an alarm/warning occurs in the interface unit/drive units, the alarm/warning number of the interface
unit/drive unit appears. (Refer to Section 4.1.2)
Automatic scroll
IFU status indication
(Slot 1)
DRU status indication DRU status indication DRU status indication DRU status indication
(Slot 2)
(Slot 7)
(Slot 8)
or
UP
DOWN
button
In the automatic scroll mode, pressing the "MODE" button for 2s or more switches between the normal
indication and the corresponding unit-related display screen. (Refer to Section 4.2/ Section 4.3.)