Toshiba 18 - 1250 A Benutzerhandbuch

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The Fault Mode Display provides information to the operator when a 
fault occurs and allows the operator to review fault history. Refer to 
Section 7 for details. Fault codes are three-digits in length and are 
displayed in alpha characters. The first and second characters (reading 
left to right) are the initials for the applicable English-language fault 
name. The third or right-most character can be either A, c, or d to 
denote when the fault occurred. “A” denotes Acceleration. “c” denotes 
Constant speed. “d” denotes Decel. 

 

[ PLA.]   Indicates that there was a Phase Loss during 

Acceleration. The Decimal point on the right 
signifies that this is the current fault.  

Displays the previous fault, a Phase Imbalance 
during Constant Speed (running) 

[ oLc]   Displays the oldest fault, an Over Load trip 

during Constant speed (running). 

Flashes once to indicate a successful Reset of 
the current fault. If it cannot be reset, the 
display will read [ inH ] for Inhibited. 

[0000.]  Returns to Default Display, indicating that the 

unit is ready to re-start. 

This Fault History can only be accessed during a fault condition. While 
the active fault number is being displayed, use the Up and Down Arrow 
keys to scroll through the Fault History. An additional Fault History 
complete with Time and Date stamps is also available for viewing at any 
time in F085 through F093. 

 
ƒ  5.4.5.a Resetting 

 

Once a fault condition has been corrected, pressing the Reset key 
will return the readout to the Status Display mode. To reset faults, 
press the [RESET] key on the keypad. Alternatively, most faults will 
reset upon removal and return of control power. Over Load trips will 
NOT be reset in this way unless sufficient time has passed for the 
Thermal Register to regain sufficient capacity for a successful 
restart (see section 3.1). 
 

ƒ  5.4.5.b Remote 

Because most trips can be reset by removing control power, remote 
reset can be accomplished this way. A NC remote contact (or push-
button) can be placed in the control power supply to A1 or A2 and 
opened to facilitate a trip reset. See figure 5.4.5.b for a suggested 
connection.