Control Panel - YASKAWA FSDrive-MV1S Instructions Manual

Power Cell Panel
In the Power Cell Panel, a total of 9 Power Cells, 3 steps for each phase of A (U), B (V) and C (W) for 3 kV
class, or a total of 18 Power Cells, 6 steps each for 6 kV class are stored. These Power Cells have exactly the
same configurations and electric ratings; each Power Cell is a single-phase inverter composed of four IGBT
power elements with 3-phase 630 VAC input.
The power section and the cell control board (CCB) are incorporated into the Power Cell. Each CCB is con-
nected to the controller in the Control Panel with an optical fiber cable. The CCB controls PWM output of the
cell according to the references sent from the controller through the optical fiber cable. The CCB has protec-
tive functions against overvoltage, undervoltage, IGBT overheat, etc. and sends an answerback to the control-
ler through the optical fiber cable.

Control Panel

The Control Panel houses a controller and control power supply to control the Inverter and peripheral devices
such as the MCCB (Moulded-case Circuit Breaker), sequence I/O relay, and analog I/O isolation amplifier.
The control circuit terminal block is mounted in the Control Panel for connection of all external cables except
the medium voltage input cable and motor main circuit wirings.
A 200/220-VAC power supply is required for cooling fan and control power. (380/400/440-VAC power supply
is also applicable.)
The controller is composed of a CPU board, modulator board, current detection resistor board, and optical
fiber interface board (only for 6 kV class Inverters). The current detection resistor board model differs depend-
ing on the Inverter capacity. Refer to Table 8.5 Current Detection Resistor Board Models for more informa-
tion. The power supplies are 5V, ±15 V, and 24 V and are used as a control power supply, an analog I/O power
supply, and a sequence I/O power supply respectively. Refer to Table 8.4 List of Recommended Spare Parts for
the power supply model.
A Digital Operator including the functions of writing/reading of constants and status/fault monitoring, and a
modular jack for connection with a personal computer are provided on the panel face.
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