Section 4: Led Indicators; Led Display - YASKAWA MotionSuite MP940 Hardware Manual

MotionSuite™ MP940 Machine Controller Hardware Manual

Section 4: LED Indicators

LED Display

The MP940 runs a series of tests during start-up. If an error is detected, the ERR LED
flashes, and the content of the error corresponds to the number of flashes.
MotionSuite™ software tools cannot communicate with the controller while an error
LED is flashing or memory initialization is occurring. The MP940 LEDs are shown in
the following table.
Type
RDY RUN
(Green) (Green)
Normal ON OFF
ON ON
Error OFF OFF
OFF OFF
OFF OFF
Warning — —
ON ON
System (S) register message
(no LED display)
Other Flashing Flashing
OFF OFF
In addition, there are the following four LEDs.
Description
PRT1
PRT2
TX Mechatrolink
RX Mechatrolink
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LED Display Patterns
LED
ERR BAT
(Red) (Red)
OFF OFF
OFF OFF
ON OFF
OFF OFF
Flashing OFF
— ON
ON OFF
OFF OFF
ON OFF
Type Color
RS232 Green
RS422 Green
Green
Green
19
Meaning
Application program stopped
Normal application program execution
Memory error (initialization may be required)
Initial operation (when display continues)
1. 2 flashes: RAM error
2. 3 flashes: ROM error
3. 4 flashes: Peripheral LSI letter
Battery alarm
1. Operand error or I/O error
Hardware status (Momentary Stop, RUN/STOP, Test-
ing Mode, etc.)
Memory initialization by DIP switch setting complete.
Offline testing mode.
Meaning
Flashes to indicate communication
Flashes to indicate communication
Flashes to indicate communication
Flashes to indicate communication
Section 4: LED Indicators