EQ7 Series Instruction Manual - TECO-Westinghouse Motor Company

Code
Table 10.1 Abnormal States Detectable ("Alarm" and "Light Alarm" Objects)
Name
"Alarm"
objects
"Light alarm"
objects
Remarks
Ref.
page
Instantaneous overcurrent -- 10-12
Ground fault -- 50 HP or above 10-12
Overvoltage -- 10-12
Undervoltage -- 10-13
Input phase loss -- 10-14
Output phase loss -- 10-14
Heat sink overheat 10-14
External alarm 10-15
Inverter internal overheat 10-15
Motor protection (PTC/NTC thermistor) -- 10-16
Braking resistor overheat 40 HP or below 10-16
Fuse blown --
Charger circuit fault --
125 HP or above for
230 V series
150 HP or above for
460 V series
60 HP or above for
230 V series
125 HP or above for
460 V series
10-17
10-17
to Overload of motor 1 through 2 10-17
Inverter overload -- 10-18
Overspeed -- 10-18
PG wire break -- 10-19
Memory error -- 10-19
Keypad communications error -- 10-19
CPU error -- 10-20
Option communications error 10-20
Option error 10-20
Operation protection -- 10-20
Tuning error -- 10-21
RS-485 communications error (COM port 1)
RS-485 communications error (COM port 2)
10-21
Data saving error during undervoltage -- 10-22
Hardware error --
Speed mismatch or excessive speed
deviation
60 HP or above for
230 V series
75 HP or above for
460 V series
10-22
10-22
NTC wire break error -- 10-23
Mock alarm -- 10-23
PID feedback wire break 10-24
Braking transistor broken -- 10-24
Positioning control
error
(Servo-lock) -- 10-24
(Synchronous control) 10-24
Enable circuit failure -- 10-24
10-2