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•
3rd digit
(operation continued at momentary power loss)
3rd digit = 0:
When momentary power loss is detected, under-voltage fault (UV1) occurs
and the AC drive output is shut off.
3rd digit = 1:
If momentary power loss time is within momentary power loss ride-thru
time (Cn-37), the operation continues after the momentary power loss. If the
momentary power loss ride-thru time is exceeded, under-voltage fault (UV1)
occurs and the AC drive output is shut OFF.
Notes:
1. When the 3rd digit = 1, do not shut OFF the external sequence signal (e.g. FWD, REV)
2. For lifters, do not use this function (set 3rd digit = 0)
•
4th digit
(Not used)
(12) Protective Characteristics Select 3 (Sn-12)
When an external fault signal of terminal 3 is asserted, “Ext. Fault 3 EF3” is displayed and a fault
contact signal is immediately generated. The AC drive stops according to the setting of the 3rd and
4th digits. The external fault signal is held within the AC drive until a fault reset signal is input.
• 1st digit
(level selection of the external fault signal)
1st digit = 0:
NO-contact input (when “closed”, the external fault operation is performed)
1st digit = 1:
NC-contact input (when “open”, the external fault operation is performed)
•
2nd digit
(acceptance of the external fault signal)
2nd digit = 0:
External fault signals are always accepted.
2nd digit = 1:
External fault signals are accepted only during run. (Not accepted
during baseblock)
•
3rd digit, 4th digit
(selection of processing at external fault detection)
3rd digit
4th digit
Contents
0
0
Ramp stop by Bn-02 (major fault).
0
1
Coast to stop (major fault)
1
0
Ramp stop by Bn-04 (major fault).
1
1
Operation to continue (minor fault).
.
(13) Protective Characteristics Selection 4 (Sn-13)
•
1st digit
(Input Phase Loss Protection, IPL)
The input phase loss protection, function is disabled when input phase loss detection
level Cn-61=100%. The effectiveness or ineffectiveness of input phase loss protection
function can also be selected by the 1st digit of Sn-13.
2-44
PA 7300
PART II: OPERATION MANUAL
Содержание PA7300 Series
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