PDP-V402
156
4. POWER OFF CIRCUIT FOR PROTECTION
This unit is provided with various protection circuits. When
these protection circuits operate, the P.D. (Power Down) operates
to turn OFF the relay (RY3001) and turn OFF the power of the
unit. When P.D. operates, the power goes off after the LED
(D3807) emits light.
1) Power supply PD circuit
Over-voltage protection circuit (O.V.P.)
Detects the overvoltage of the power supplies B (TP3101:
215V), VSUS (TP3301: 170V), VADR (TP3401: 60V),
VCC (TP3201: 5V), VCSP (40V) and operates P.D.
Voltage drop protection circuit (U.V.P.)
Detects the voltage drop by the overload of the power
supplies VSUS (170V), VADR (60V), VCP (12V),
+13.5V, and VCC (5V) and operates P.D.
Overvoltage input protection circuit
When voltage above approximately 200V is input to the
AC power input, it operates P.D.
2) DRIVE ASSY overvoltage protection circuit
Operates P.D. when the DC-DC CONV. output (VRN, VH)
in the X DRIVE (A) ASSY, Y DRIVE (A) ASSY becomes
overvoltage.
3) DRIVE ASSY undervoltage protection circuit
Operates P.D. when the DC-DC CONV. output (VH) in the
Y DRIVE (A) ASSY becomes undervoltage.
DIGITAL VIDEO ASSY
K6101 (R)
K6004
(CKL2I)
K6005
(VD)
K6020
(HD)
R6251
D6502
D6503
R6252
K6102 (G)
K6103 (B)
TOP
4) DRIVE ASSY overcurrent protection circuit
Detects the overcurrent of the VCP (12V) supplied to the
X DRIVE (A)/(B) ASSY and Y DRIVE (A)/(B) ASSY,
and operates P.D.
Detects overcurrent flowing to R5032 (390 W, 3W) in the
Y DRIVE (A) ASSY and Y DRIVE (B) ASSY, and
operates P.D.
5) FAN stop protection circuit
Operates P.D. when the internal fan stops.
Does not operate when the external fan stops.
6) Temperature detection protection circuit
Operates P.D. when the external temperature exceeds
approximately 55 ˚C.
The STANDBY/ON indicator blinks in green only when this
detection circuit is working.
Содержание PDP-V402
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Страница 36: ...PDP V402 96 A B C D 1 2 3 4 1 2 3 4 CONTROL ASSY B SIDE B B ...
Страница 37: ...PDP V402 97 A B C D 5 6 7 8 5 6 7 8 ANP1968 C B ...
Страница 44: ...PDP V402 104 A B C D 1 2 3 4 1 2 3 4 DIGITAL VIDEO ASSY D SIDE B D ...
Страница 45: ...PDP V402 105 A B C D 5 6 7 8 5 6 7 8 ANP1866 D Q6105 Q6104 Q6106 Q6107 D ...
Страница 48: ...PDP V402 108 A B C D 1 2 3 4 1 2 3 4 X DRIVE A ASSY E SIDE B E ...
Страница 49: ...PDP V402 109 A B C D 5 6 7 8 5 6 7 8 ANP1970 B E ...
Страница 52: ...PDP V402 112 A B C D 1 2 3 4 1 2 3 4 X DRIVE B ASSY F SIDE B F ...
Страница 53: ...PDP V402 113 A B C D 5 6 7 8 5 6 7 8 ANP1970 B F ...
Страница 56: ...PDP V402 116 A B C D 1 2 3 4 1 2 3 4 Y DRIVE A ASSY G SIDE B G ...
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Страница 60: ...PDP V402 120 A B C D 1 2 3 4 1 2 3 4 Y DRIVE B ASSY H SIDE B H ...
Страница 61: ...PDP V402 121 A B C D 5 6 7 8 5 6 7 8 ANP1971 B H ...
Страница 64: ...PDP V402 124 A B C D 1 2 3 4 1 2 3 4 MAIN POWER ASSY M SIDE B M ...
Страница 65: ...PDP V402 125 A B C D 5 6 7 8 5 6 7 8 ANP1864 D M ...
Страница 71: ...PDP V402 131 A B C D 1 2 3 4 1 2 3 4 3D Y C ASSY Q SIDE B ANP1974 A Q ...
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