(Main Parts)
MAINTENANCE
4-78
SM-18006
1
Specications of Inverter (460V Type)
4.2.2 Inverter for 460V Type
460V
Output Voltage
Output Frequency
Max.
0
Applicable Model (H,Y)VWH(P,R)072 ~ 216B42S
Applicable Power Supply 460V 3PH 60Hz
Output Voltage (Maximum) 460V
Output Current (Maximum)
Inverter PCB 26A
Control Method Vector PWM Control
Range Output Frequency
Inverter PCB 9Hz to 105Hz
Accuracy of Frequency 0.01Hz
Output/Characteristics
Soft Control Speed 0.125Hz/s, 0.25Hz/s, 0.5Hz/s, 1Hz/s, 3Hz/s (5 Steps)
Protection Function
Excessive High or Low Voltage
for Inverter
● Stoppage Code for Inverter (Itc)= 5
Excessive Low Voltage at a DC Voltage is Lower than 396V.
● Stoppage Code for Inverter (Itc)= 6
Excessive High Voltage at a DC Voltage is Higher than 844V.
Abnormality of Current Sensor ● Stoppage Code for Inverter (Itc)= 8
The wave height value of running current for the phase positioning is less than the determination value
before the compressor is started (at completion of the phase positioning).
Protection Function Overcurrent
Protection for Inverter
● Stoppage Code for Inverter (Itc)= 1
(1) Short-Circuit Trip of Arm
(2) Instantaneous Overcurrent Trip
● Stoppage Code for Inverter (Itc)= 2
(3) Instantaneous Overcurrent Trip
When detecting current is more than rated current of Transistor Module, overcurrent is detected.
● Stoppage Code for Inverter (Itc)= 4
(4) Electronic Thermal Trip
When the current detected by current sensor exceeds 105% of the rated current continuously
for 30 seconds or for 3 minutes in total during a 10-minute period, overcurrent is detected.
Protection of Power Module
(CIB, IPM)
● Stoppage Code for Inverter (Itc)= 1
Power module (CIB, IPM) has three protection functions for self-protection.
(1) Some of the output terminals between “U” and “V”, “V” and “W”, “W” and “U” have a short-circuit.
(2) Running current reaches the maximum rated current.
(3) Control voltage decreases abnormally.
Fin Temperature Increase ● Stoppage Code for Inverter (Itc)= 3
The unit is stopped when the CIB temperature is higher than 230
o
F (110
o
C).
Ground Detection ● Stoppage Code for Inverter (Itc)= 12
The unit is stopped when the compressor is grounded.
(1)
(2)
(3)
ransistor Module (IPM)
105%
(4)