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7. SPECIFICATIONS
7.1 Standard Specifications
7.1.1 Rating specifications
MD-CX522-
Applicable motor capacity (kW)
Overload capacity
Regenerative braking torque
(Note 1)
Rated input AC voltage
Permissible AC voltage
fluctuation
Permissible frequency
fluctuation
Power supply system capacity
(kVA)
Protective structure
Cooling system
Approx. weight (kg)
Note 1: Indicates the short-duration average torque (which varies with motor loss) provided
when a motor alone is decelerated from the rated speed at the shortest time, and
does not indicate continuous regenerative torque. Since the drive unit does not
have a built-in brake resistor, use an optional brake resistor when regenerative
energy is large. You can also use the brake unit (model BU).
The rated output capacity and rated speed of the motor used with
the drive unit assume the rated input AC voltage indicated above.
They cannot be guaranteed when the power supply voltage drops.
The overload capacity indicated in % is the ratio of the overload
current to the motor's rated output.
The power supply system capacity varies with the values of the
MEMO
power supply side impedances (including those of the input reactor
and cables).
The permissible load inertia moment ratio to the motor shaft is 15
times or less.
The drive unit cannot run multiple motors.
0.4K
0.75K
0.4
0.75
150% 60s (inverse-time characteristics)
10% or
more
Three phase, 200V to 220V 50Hz, 200 to 230V 60Hz
170 to 242V 50Hz, 170 to 253V 60Hz
1.1
2.2
Self-
cooling
8.0
1.0
7-1
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7. SPECIFICATIONS
1.5K
2.2K
1.5
2.2
5% or more
±5%
3.1
4.3
Enclosed type (IP20)
Air cooling
1.7
1.7
3.7K
3.7
7.3
2.2
7
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