Mitsubishi Electric FR-CS84-012 Instruction Manual page 117

Pr. Name
65
Retry selection
H300
67 Number of retries at fault
H301 occurrence
68
Retry waiting time
H302
69 Retry count display
H303 erase
 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
• Retry operation is performed when
Fault output during retry
Pr.67 setting
0 —
1 to 10 Not available
101 to 110 Available
• When retries fail consecutively for more than the number of times set in
the inverter output is shut off. (Refer to the Retry failure example.)
• Use to set the waiting time from a protective function activation to a retry in the range of 0.1 to 600 seconds.
Pr.68
• During retry operation, the During retry (Y64) signal is ON. For the Y64 signal, set "64 (positive logic)" or "164 (negative
logic)" in
Pr.195 (Output terminal function selection)
 Retry count check (Pr.69)
• Reading the
Pr.69
( value) is incremented by 1 every time a retry is successful. Retry is regarded as successful when normal operation
Pr.69
restarts and continues with no other faults within the time set in
is successful, the cumulative number of retry failures is cleared.)
• Writing "0" in
Pr.69
Pr.68
Inverter
output
frequency
0
Retry start
Fault occurrence
Retry success count
Y64 ON
Retry success example
116
5. PARAMETERS
5.6 (H) Protective function parameter
Initial
Setting range
value
0 0 to 5
0
1 to 10
0
101 to 110
1 s 0.1 to 600 s
0 0
. The retry function then restarts the operation from the starting frequency.
Pr.68
≠ "0". Set the number of retries at activation of the protective function in
Pr.67
operation
No retry function
1 to 10 times
1 to 10 times
value provides the cumulative number of successful restart times made by retries. The retry counter
clears the cumulative count.
Retry success
Pr. 68 × 4
(If it is below 3.1s, 3.1s is set.)
Time
Success count + 1
A fault for retry can be selected.
No retry operation
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 a fault occurrence to a retry.
Clear the number of restarts succeeded by retries.
Retry count
Pr.67
to assign the function.
multiplied by four (3.1 seconds at least.) (When retry
Pr.68
Pr.68
Inverter
output
frequency
0
First
retry
Fault
occurrence
Fault signal
(ALM)
ON
Y64
Description
, a retry count excess (E.RET) occurs, and
Pr.68 Pr.68
Second Third
retry retry
Fault Fault
occurrence occurrence
ON ON
Retry failure example
.
Pr.67
Time
Retry failure
(E.RET)
ON