Mitsubishi Electronics FR-S500 Operation selection function parameters, Alarm Signal Output

Operation selection function parameters

2.10 Operation selection function parameters

2.10.1 Retry function (Pr. 66 , Pr. 67 , Pr. 68 , Pr. 69 )

When any protective function (major fault) is activated and the inverter stops its output, the inverter itself resets automatically and performs retries. Whether retry is performed or not, alarms reset for retry, number of retries made and waiting time can be selected.

When you have selected automatic restart after instantaneous power failure (with speed search), restart operation is performed at the retry operation time which is the same of that of a power failure. (Refer to page 92 for automatic restart function.)

Parameter	Name	Factory	Setting	Remarks
		Setting	Range
66	Retry selection	0	0 to 3
67	Number of retries at alarm	0	0, 1 to 10,	Setting is enabled when
	occurrence		101 to 110
				Pr. 30 = "1"
68	Retry waiting time	1s	0.1 to 360s
69	Retry count display erase	0	0

<Setting>

•Use Pr. 66 to select the protective functions (major faults) to be activated for retries.

Pr. 66

Protective Functions (Major Faults) for Retries

Setting

OCT

OVT

THM

THT

BE

FIN

GF

OHT

OLT

PE

PUE

RET

CPU

OPT

0

1

2

3

* Indicates the retry items selected. (OCT denotes any of OC1 to OC3 and OVT any of OV1 to OV3.)

•Use Pr. 67 to set the number of retries at alarm occurrence.

Pr. 67 Setting	Number of Retries		Alarm Signal Output
0	Retry is not made.		
1 to 10	1 to 10 times		Not output every time *
101 to 110	1 to 10 times		Output every time
* If the retry count is exceeded, "		" (retry count over) is displayed.

•Use Pr. 68 to set the waiting time from when an inverter alarm occurs until a restart in the range 0.1 to 360s.

•Reading the Pr. 69 value provides the cumulative number of successful restart times made by retry. The cumulative number of time is cleared when setting value "0" is written.

2

FUNCTIONS

101