Toshiba 18 - 1250 A Benutzerhandbuch

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          Digital Solid State Soft Starters   18 – 1250A 
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Starting at
Function #30
De fault Se tting
of Function #30
Set F030 = 2
Permissiv e
Run Time r
F030
0000
0002
Re turn to
Function # Display
Figure App 4.2:
Program m ing Perm issive Run Tim er Functions
Example: Process Timer for Compressor
F031
READ
ENTER
Change  Se tting
to 600 minutes
0600
READ
ENTER
 End
Value   Accepte d
(flashes once )
Change  to
F031
F031
Default Se tting
of Function #31
0000
READ
ENTER
READ
ENTER
 End
Value   Accepte d
(flashes once )
x 2
x 2
x 6
Cycle  Control Power to Accept Change s
 
Example: Figure App 4.2 
Permissive Run Timer
 
 
An air compressor controlled by a pressure switch feeds a large 
air distribution system that has small normally insignificant leaks. 
If left on over night when the system is not in use, leaks drop the 
air pressure and the compressor cycles on and off even though 
the facility is unoccupied, wasting energy. 
 
Set F030 to [0002] for Permissive Run Timer
This will ensure that if nobody remembers to shut the compressor 
off, it will not run when the facility is shut down. 
Set F031 to [0600] minutes (10 hours) 
This is the longest Run Time after which the starter will 
automatically shut down. This ensures that it will not restart after 
the time expires and until a new Start Event occurs. 
(Not Shown) 
Ensure F032 is set to [0001] for Every Day, and F033 is set to 
correspond to work start time (or 5 minutes prior) 
This will allow the Run command provided by the pressure switch 
to engage the starter any time it is required after the shift begins. 
 
With this setting, the compressor will start whenever the pressure 
switch calls for it after the Start Event set by the Time Clock 
Controller, but if forgotten it will shut itself off after 10 hours. If 
power is turned off or lost during those 10 hours, the timer is not 
cleared or reset, so even if it is turn back on 1 minute before the 
timer expires, it still shuts off at the end of that 10 hour period. 
 
 
NOTE:  
If the 
Process Control Timer
 (F030) is set for Minimum Batch Timer (value of 1), and the next 
Start Event Cycle passes without a Start command, the previous event will be ignored in favor of 
the new one. 
 
If a 
Process Control Timer 
setting from F031 is so long that it overlaps a Start Event Cycle 
setting in F032-F039, the original timer value becomes invalid. The new Start Event Cycle reloads 
the value of F031 and begins counting down again from the beginning. 
 
 
F031 = Process Timer Value 
Factory Setting = 1  
Range = 1 – 9999 minutes 
This function loads a value into the Process Control Timer 
above. When initialized, the value counts down towards 0.  
F030 sets the operating mode and reset functions for this timer: 
 
The value of this timer can be read directly in the main Status 
Screen (see section 5.3.1). When the Process Control Timer 
has been enabled in F030, the Status Screen display for the 
value will flash once per second while timing. When completed, 
it will stop flashing and read [0000]