Toshiba Tosvert VF-S15 Instruction Manual page 346

(Continued)
Error code





In forced operation

STO signal OFF

／

／


Note 2)


Note 2)  is blinking when setup menu starts. Key operation is not allowed.
[Prealarm display]


13



If two or more problems arise simultaneously, one of the following alarms appears and blinks.
, , 
The blinking alarms , , , h, t are displayed in this order from left to right.
Problem
Output frequency  An attempt was made to operate at a
upper limit
frequency higher than 10 times the base
frequency ( or ).
Operation panel key  The RUN or STOP key is held down for
alarm
more than 20 seconds.
 The RUN or STOP key is faulty.
S3 terminal alarm  Slide switch SW2 and parameter f147
settings are different.
 Auto-tuning in process
Auto-tuning
Break in analog  The signal input via VIC is below the
signal cable
analog signal detection level set with
 and setting value of  is
one or more.
 "" and operation frequency is
displayed alternately in operation of
forced fire-speed control.
 STO terminal is in open-circuit.
 Input voltage of STO terminal is low.
Password verification  After the password setting (f738), the
result
password was input to f739 (password
verification).
 The EASY key was pushed in the
Switching display of
Easy setting mode /
standard monitor mode.
Standard setting
mode
Input requirement of  Set the region setting parameter set to
region setting
default setting by selecting set=0. A
region setting is not input yet.
No trip of past trip  No new record of past trip, after past trips
were clear.
No detailed  The detailed information of past trip is
information of past
read by pushing the center of setting dial
trip
during blinking nerr ⇔ number.
But parameter set doesn't blink as same as other parameters.
Overcurrent alarm Same as  (overcurrent)
Overvoltage alarm Same as  (overvoltage)
Overload alarm Same as  and  (overload)
Overheat alarm Same as  (overheat)
Communication alarm Same as err5 (communication fault)
Possible causes
 Operate at a frequency within 10 times the
base frequency.
 Check the operation panel.
 Match the settings of SW2 and f147.
Power supply OFF and ON after these
settings.
 Normal if it the message disappears after a
few seconds.
 Check the cables for breaks. And check the
setting of input signal or setting value of
 and .
 It is normal the alarm is gone out after the
forced fire-speed control operation.
 Close STO and + SU circuit.
 Check the load of P24 terminal, if STO and
+SU is shorted.
 If the password is correct, pass is displayed
and if it is incorrect, fail is displayed.
 When easy is displayed, setting mode
becomes easy setting mode. When std is
displayed, it becomes standard setting mode.

 Normal operation.
 Normal operation.
To be returned by pressing MODE key.
M-6
Remedies
Set a region setting by using setting dial.
Refer to section 4.4.
E6581926