Retention Of System Status - Toshiba TOSVERT VF-A3 Instruction Manual

SLE4= 20r3
VFmotor
Electronic thermal activation level
100%
~------~----~
I
I
Adjusted on tHr
60% ~-------'------
o
Maximum frequency
Output frequency
Figure 5.5 Electronic thermal activation characteristic for VF motors
• The electronic thermal activation is adjusted to the invertr's rated output current.
5.3.4 Retention of system status
[1:;. C L ]
When the inverter's system protection features have been activated and the inverter has tripped,
the system data that was in effect when the trip occurred will be stored in the inverter's memory
area even if the power switch has been turned off.
Setting
on
':'-.CL
o
1
Function
I
!
When power is turned off, retained system data is cleared (standard) (Subse-
i
I '
I
quent power on releases the tripped state. Consequently, the input of an
i
!
operation signal re-activates the system.) ,
I
Stores the cause of faults when the trip occurred after power off (The cause of '
I faults is displayed after power is reconnected to reset enables the operator to •
!
restart)
• For the setting procedure, refer to Section 3.1.1 (page 22). This function number is 9.
• For datails to reset at trip, refer to Section 4.5 (page 86 ).
• To store the cause of fault is allowed and to store the triped conditions is not allowed by
setting the retention of system status ( b-.CL
=
1).