Mitsubishi Electric FR-E800, Инструкция по эксплуатации

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11. (H) Protective Function Parameters
11.7 Retry function
11.7
Retry function
This function allows the inverter to reset itself and restart at activation of the protective function (fault indication). The retry
generating protective functions can also be selected.
When the automatic restart after instantaneous power failure function is selected (
Pr.57 Restart coasting time ≠ "9999"), the
restart operation is also performed after a retry operation as well as after an instantaneous power failure. (For restart operation,
refer to
page 403 and page 408 for selection.)
 Setting the retry function (Pr.67, Pr.68)
• When the inverter protective function is operating (fault indication), the retry function automatically cancels (resets) the
protective function after the time set in Pr.68 . The retry function then restarts the operation from the starting frequency.
• The retry function is enabled when the Pr.67 setting is other than "0". Set the number of retries at activation of the protective
function in Pr.67 .
• When retries fail consecutively more than the number of times set in Pr.67 , a retry count excess (E.RET) occurs, resulting
in an inverter retries. (Refer to the Retry failure example.)
• Use Pr.68 to set the waiting time from a protective function activation to a retry in the range of 0.1 to 600 s.
• During retry operation, the During retry (Y64) signal is ON. For the Y64 signal, set "64" (positive logic) or "164" (negative
logic) in any parameter from Pr.190 to Pr.196 (Output terminal function selection) to assign the function.
 Retry count check (Pr.69)
• 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 (3.1 seconds at the shortest). (When retry is successful, the
cumulative number of retry failures is cleared.)
Pr. Name
Initial
value
Setting range Description
65
H300
Retry selection 0 0 to 5 Faults which trigger the retry operation can be selected.
67
H301 Number of retries at fault
occurrence
0
0 The retry function disabled.
1 to 10
Set the number of retries at a fault occurrence.
A fault output is not provided during the retry operation.
101 to 110
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.
68
H302
Retry waiting time 1 s 0.1 to 600 s
Set the time delay from when an inverter fault occurs until the retry
operation starts.
69
H303 Retry count display
erase
0 0
Setting "0" clears the retry success counter ("retry success" means that
the inverter successfully restarts).
Pr.67 setting Fault output during retry operation Retry count
0 — No retry function
1 to 10 Not available 1 to 10 times
101 to 110 Available 1 to 10 times