STP-H600/H1000 Series Instruction Manual
4.1.3 Inside of the STP Control Unit
(25) Inverter
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This is a three-phase transistor-inverter which starts/stops the STP pump.
(26) Fuses 3 to 9, 11, and 12
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These fuses protect as follows:
F3 and 4: 250 V, 5 A (for control power protection)
F5 to 7 : 250 V, 10 A, arc-extinguishing fuses
(for I/O TB2 terminal block power optional drive protection)
F8 and 9: 250 V, 10 A, arc-extinguishing fuses
(for internal and external batteries protection)
F11 and 12: 250 V, 0.1 A (for START/STOP TB6 terminal block protection)
(27) Control Circuit Boards
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For control of the magnetic bearing, motor, safety functions, etc.
(28) Internal Battery
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For backup during a power failure.
(29) Internal Battery Connector
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For connection of internal battery (when using an internal battery, connect
it to this connector).
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The internal battery has been installed upon shipment of the STP control
unit so that the customer can use it (the internal battery connector is
connected to the internal battery).
CAUTION
◇
When using an external battery, disconnect internal battery connector, then
connect external battery connector (see Section 10, "External Battery" for
details).
(30) Air Cooling Fan
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For cooling the inside of the STP control unit.
(31) "BATTERY NG" Lamp
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Lights when the battery capacity reduces to the minimum level (see
Section 9.4, "BATTERY NG Lamp”).
(32) "Reset" Switch
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Resets the state of inability to start the STP control unit due to a decrease
in the battery capacity (see Section 9.4, "BATTERY NG Lamp”).
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