3.4.17 Retry function (Pr. 65, Pr. 67 to Pr. 69). Mitsubishi Electric Marine Battery FR-HC2, FR-HC2-7.5K, FR-HC2, FR-HC2-H7.5K

HC2.book 91 ページ ２０１２年１１月１９日　月曜日　午前１０時５２分

Description of parameters

3.4.17 Retry function (Pr. 65, Pr. 67 to Pr. 69)

If a fault occurs, the converter resets itself automatically to restart. Fault-activating retries can be also selected.

Parameter

Number

65

Name

Retry selection

67

68

69

Retry success example

Converter operation

0

Retry start

Fault occurrence

Retry success count

RTY ON

Retry failure example

Converter operation

Number of retries at fault occurrence

Retry waiting time

Retry count display erase

Retry success

Pr. 68

Pr. 68 × 4

(If it is below 6s, 6s is set.)

Pr. 68 Pr. 68 Pr. 68

0

First Second Third

Fault occurrence retry

Fault retry occurrence

Fault occurrence retry

Fault signal

(ALM)

ON ON ON

RTY

Initial value

0

0

1s

0

Time

Success count + 1

Time

Retry failure

(E.RET)

ON

Setting range Description

0 to 4

0

1 to 10

101 to 110

0 to 360s

0

A fault for retry can be selected. (Refer to the table in the next page.)

No retry function

Set the number of retries at a fault occurrence.

A fault output is not provided during the retry operation.

Set the number of retries at a fault occurrence. (The setting value minus 100 is the number of retries.)

A fault output is provided during the retry operation.

Set the waiting time from when a converter fault occurs until a retry is made.

Clear the number of restarts succeeded by retries.

 Retry operation automatically resets a fault and restarts the converter when the time set in Pr. 68 elapses after the converter trip.

 Retry operation is performed when Pr. 67  "0". Set the number of retries at a fault occurrence to Pr. 67 .

 When retries fail consecutively more than the number of times set in Pr. 67 , a retry count excess fault (E.RET) occurs, resulting in a converter trip. (Refer to the Retry failure example.)

 Use Pr. 68 to set the waiting time from when the converter trips until a retry is made in the range of 0 to 360s. (When the setting value is "0s", the actual time is 0.1s.)

 Reading the Pr. 69 value provides the cumulative number of successful restart times made by retries.

The cumulative count in Pr. 69 increases by 1 when a retry is successful. Retry is regarded as successful when normal operation continues without a fault for the Pr. 68 setting multiplied by four or longer (6s at the shortest).

(When retry is successful, cumulative number of retry failure is cleared. )

 Writing "0" in Pr. 69 clears the cumulative count.

During a retry, RTY signal is ON. For RTY signal, assign the function by setting "11 (positive logic)" or

"111(negative logic)" in any of Pr. 11 to Pr. 16 (output terminal function selection) .

NOTE

Changing the terminal assignment using Pr. 11 to

Pr. 16 (output terminal function selection) may affect other functions. Set parameters after confirming the function of each terminal.

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