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4. SAFETY OBSERVATION FUNCTION
(4) Input signal conditions at start-up/error detection
(a) At start-up
Each output device outputs off fixing from power-on of MR-D30 until the diagnosis completes. After
the diagnosis is completed, devices assigned with [Pr. PSD08 Output device selection DO1] to [Pr.
PSD11 Output device selection DO4] will be outputted.
A point of time of diagnosis completion differs depending on using input device or using safety
compatible motion controller. Refer to section 4.4.1 (4) for diagnosis for when using input devices.
Refer to section 4.4.3 for diagnosis for when using safety compatible motion controller.
Power
supply
STOS (STO output)
DO1A
DO1B
DO2A
DO2B
DO3A
DO3B
DO4NA
DO4PB
(b) At error detection
Each output device will turn off when an alarm that disables SSM at error detection of MR-D30
occurs. Refer to chapter 7 for corresponding alarm Nos. When a non-corresponding alarm is
occurring, assigned devices will be outputted continuously.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
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During diagnosis
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