Mitsubishi Electric FR-A700 Series, Техническое руководство

Страница: 464 / 550

498
SELECTION
3.3.7 Explosion-proof motor
The inverter cannot drive commercial power drive
pressure-resistant explosion proof motors and safety-
increased explosion-proof motors already in place.
To operate an explosion-proof motor by an inverter in
Japan, explosion proof certification by the Ministry of
Health, Labour and Welfare for the inverter and motor unit
is required. Strong cover of the Mitsubishi pressure-
resistant explosion-proof motor is utterly unaffected by
explosion-proof tests (10 explosion tests + 15 fire explosion
tests) By applying Japanese d2G4 standard for the
explosion proof structure, the explosion-proof motor can
respond to various needs. The inverter used with this
motor must be the Mitsubishi FR-B, B3 series inverter
dedicated to explosion-proof motor (equivalent to the FR-
A700) and must be installed in non-hazardous locations.
(1) Variable torque series (combination with
FR-B)*
Operate a pressure resistant explosion-proof motor
with a FR-B series inverter under V/F control.
*1 Above graph shows torque characteristic when the
maximum frequency is 120Hz. The characteristic differs
by the motor frame number.
*2 Continuous operation can be performed in the above
mentioned torque range or less.
Motor Type Inverter Type
Type Output
Torque
Characteristic
200V class 400V class
XE-NE 0.2kW
1)
FR-B-750 FR-B-750 XE-NE 0.4kW
XF-NE 0.75kW
XF-NE 1.5kW FR-B-1500 FR-B-1500
XF-NE 2.2kW FR-B-2200 FR-B-2200
XF-NE 3.7kW FR-B-3700 FR-B-3700
XF-NE 5.5kW FR-B-5.5K
FR-B-7.5K
XF-NE 7.5kW FR-B-7.5K
XF-E 11kW FR-B-11K
FR-B-15K
XF-E 15kW FR-B-15K
XF-E 22kW FR-B-22K FR-B-22K
XF-E 30kW FR-B-30K
FR-B-37K
XF-E 37kW FR-B-37K
XF-E 45kW FR-B-45K
FR-B-55K
XF-TH 55kW
2)
FR-B-55K
XF-TH 75kW FR-B-75K FR-B-75K
XF-TH 90kW - FR-B-90K
XF-TH 110kW - FR-B-110K
Motors with 45kW or less have 2-pole, 4-pole, or 6-
pole. Note that some motors with 2 or 6 poles are
required for the explosion proof test by the Ministry
of Health, Labour and Welfare. Please consult
your sales representative when placing an order.
Motors with 55kW or more have 4 poles. Please
consult our sales representative for the motor
capacities not mentioned above.
* Above combinations are when Mitsubishi pressure-
resistant explosion-proof motor with 4 poles is used.
When 100% is the rated motor torque at 50Hz
85
75
40
33
6 20 50 60 120
When 100% is the rated motor torque at 60Hz
100
90
48
40
6 20 50 60 120
Torque characteristic 1)
Frequency (Hz)
Frequency (Hz)
Torque (%)
(60Hz reference)
Torque (%)
(50Hz reference)
Torque characteristic 2)
85
100
120
6 50 60
70
83
100
6 50 60
When 100% is the rated motor torque at 60Hz
When 100% is the rated motor torque at 50Hz
Frequency (Hz)
Frequency (Hz)
Torque (%)
(60Hz reference)
Torque (%)
(50Hz reference)