MA7200 PLUS Operating Manual
TECO – Westinghouse Motor Company Warning Messages, Causes and Remedies
Cont.
Table 10.1.2.1 Warning Messages, Causes and Remedies
(Cont.)
LCD Display
(English)
Alarm
Warning Description
Fault
Contact
Output
Warning Causes
Remedy
(blinking)
Alarm
B.B.
External B.B. signal is input
(terminal
). The inverter stops
and the motors stops without
braking.
OFF External B.B. signal is
input.
After the external BB signal is removed,
execute a speed search.
Alarm
Input Error
Improper inverter capacity (Sn-
01) setting.
Inverter KVA setting error.
Set proper KVA value. Be aware of the
difference of 230V and 460V.
Multi-Fun.
Parameter
Setting Error
Improper setting of multi-function
input signal (Sn-25, 26, 27 and
28).
OFF
The value of Sn-25 -Sn-
28 is not in ascending
order (Ex. Sn-25= 05,
Sn-28= 02, these are
improper setting).
Setting speed search
command of 21 and 22
simultaneously.
Set these values in order (the value of
Sn-25 must be smaller than those of
Sn-26, 27, 28)
Command 21 and 22 can not be set by
two multi-function-input contacts
simultaneously.
V/F Parameter
Setting Error
Improper setting of V/F
characteristic (Cn-02 - 08)
OFF
The values of Cn-02 -
Cn-08 do not satisfy
F
max
F
A
F
B
F
min
.
Change the settings.
Frequency Limit
Setting Error
Improper setting of Cn-18, Cn-19
OFF
Upper limit and lower
limit setting is incorrect.
Change the settings.
PID Sleep
Setting Error
Improper setting of PID function
and the PID sleep function.
OFF
The PID sleep function is
valid (P1-04 = 1) and the
PID function is invalid
(Sn-64 = 0)
Set PID Function valid for using PID
sleep function.
Ext PID
Parameter
Setting Error
Improper setting of input terminal
of the external PID function (P1-
07, P1-08).
OFF
The target signal and
feedback signal of
external PID function
use the same analog
terminal.
(Ex. P1-07 = P1-08 = 1,
Terminal VIN is used for
both target and feedback
signal)
The analog terminal of
target (or feedback)
signal of external PID
function is also used as
frequency command,
target (or feedback) of
original PID function.
(Ex. P1-07=2 (AIN = Ext.
PID Target), Sn-64 = 1
(PID enabled, the AIN is
feedback of PID
function.)
Use different analog terminals for
external PID target and feedback.
Refer to “External PID Function (Input
and Output Terminal)” to get the
terminals available for different setting
frequency command source (Sn-05)
and PID function
(Sn-64).
Flow Meter
Setting Error
Improper setting of the flow meter
function
OFF
The AUX flow meter
function is set (P4-01 =
1) and the terminal AUX
is also used for PID
function (Sn-29 = 9) or
external PID function
(P1-07 = 3 or P1-08 = 3).
The pulse flow meter
function is set (P4-01 =
2) and the frequency
command is from pulse
input (Sn-05 = 3).
Change the settings
Cont.