Toshiba TOSVERT VF-AS3, Instruction Manual

Page: 600 / 622

E6582062 
13. Trip information and measures
13-10
4
4
8
9
13
■ Pre-alarm information
■ Message information
PrA STO activated 1) Open state between [STOA]/[STOB] and
[PLC] terminal.
2) 24V output terminal [PLC]/[P24] overload.
3) SW1 is set on "PLC" position and an
external power is not supplied.
1) Short circuit [STOA] - [STOB] - [PLC]. (By
default, short circuit is done with a shorting
bar).
2) Check 24V load.
3) Check SW1 position and external power
supply.
t Communication
alarm
(RS485, option) Condition very close to the communication
time out trip. Perform the same measures with
communication time out "Err5" and "Err8".
tUn1 Brake learning error 1) The load is heavy.
2) Parameter setting is improper.
3) Braking operation is abnormal.
1) Perform learning with no load or light load
in approx. 3 % or less rating.
2) Set the motor parameters and learning
related parameters in advance.
3) Check the brake.
tUn3 Light-load high-
speed learning error Setting of the motor parameter is improper. Set the motor parameters according to the
motor.
Pre-alarm
display
English Detection factor Measures
C Overcurrent pre-
alarm Condition close to the overcurrent trip. Perform the same measures with overcurrent
"OC1", "OC2", and "OC3".
H Overheat pre-alarm Condition close to the overheat trip. Perform the same measures with overheat
"OH".
L Motor overload pre-
alarm Condition close to the overload trip. Perform the same measures with overload
"OL1", "OL2", and "OL3".
P Overvoltage pre-
alarm Condition close to the overvoltage trip. Perform the same measures with overvoltage
"OP1", "OP2", and "OP3".
Message
display
English Description Remarks
A-01 V/f 5-point setting
error 1 When <Pt:V/f Pattern> = "7: V/f 5-point
setting", two or more from <vL>, <F190>,
<F192>, <F194>, <F196> and <F198> are
set to the same value other than 0.0 Hz. Set different value on each parameter.
A-02 V/f 5-point setting
error 2 Inclination of V/f is large. • Set V/f 5-point and <vLv>/<vL> for the V/f
inclination to be gentle.
• Increase the value of <VL>, or decrease
the value of <VLV>.
A-05 Base frequency
setting error Tries to run in frequency over 10 times of the
base frequency. • Check that the base frequency setting is
correct. <vL: Base frequency 1>, etc.
• Operate in frequency within 10 times of the
base frequency.
ASIA Setting for Asia Setting for Asia is selected in the setup
menu. -
Atn During auto tuning Auto-tuning in progress. A message that indicates auto-tuning in
progress. No problem if the message
disappears after several seconds.
Alarm
display
English Detection factor Measures