The Check Of Control Power Supply Voltage And A Control Signal; Control Power Supply Voltage; Control Signal - Hitachi L300P Series Service Manual

4. The check of control power supply voltage and a control signal

4.1 Control power supply
Item
PV5 +5V power supply
PV12 +12V power supply
NV12 -12V power supply
PV24 24V power supply

4.2 Control signal

Signal Measurement place
VDC J1 connector 12pin-L
IUF J1 connector 9pin-L
IWF J1 connector 8pin-L
TRIP J1 connector 21pin-L
PHF J1 connector 22pin-L
IPL J1 connector 11pin-L
GS J1 connector 20pin-L
US J1 connector 17pin-L
VS J1 connector 18pin-L
WS J1 connector 19pin-L
GS J1 connector 30pin-L
Tolerance level
4.5V - 5.5V J1 connector 25,16pin
10.8V - 13.2V
-13.2V - -10.8V
21.6V - 26.4V
Control terminal P24
The contents of operation
A main circuit direct-current voltage
detected signal
VDC=6.396V/400V*VPN(200Vclass)
VDC=6.396V/800V*VPN(400Vclass)
A motor current detected signal
At the time of inverter rated load: About
3.3 V peak
The signal at the time of carrying out a
trip by the trip factor which a gate array
judges (P3-1 reference)
Normal : 5V(H)
Inside of a trip : about 0.3V(L)
Phase failure
signal
Normal :5V(H)
Phase failure detection :about0.5V(L)
The instantaneous power failure signal
of R0-T0 part
Power On : about0.5V(L)
Power Off : 5V(H)
Power-module protection
Under operation : about 5V(H)
Under a stop
PWM signal
Upper arm ON : about 3.5V(L)
lower arm ON : about 5V(H)
The trip distinguished by GA is canceled.
Normal : about 5V(H)
Under reset : about 0.5V(L)
4-1
Measurement place
+
J1 connector 7pin
J1 connector 5pin
J1 connector 3,4pin,
protection detected
: about 0.5V(L)
-
Control terminal L
Control terminal L
Control terminal L
Control terminal CM1
Observation waveform
Direct-current voltage
3.3V
-3.3V
Direct-current voltage
Direct-current voltage
Direct-current voltage
Direct-current voltage
5V
3.5V
0V
Upper arm ON Lower arm ON
5V
0.5V
0V
Reset Reset
0V