Explosion-Proof Motor - Mitsubishi Electric FR-A700 Technical Manual

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.
Motor Type
Type Output
Characteristic
XE-NE 0.2kW
XE-NE 0.4kW
XF-NE 0.75kW
XF-NE 1.5kW
XF-NE 2.2kW
XF-NE 3.7kW
XF-NE 5.5kW
XF-NE 7.5kW
XF-E 11kW
XF-E 15kW
XF-E 22kW
XF-E 30kW
XF-E 37kW
XF-E 45kW
XF-TH 55kW
XF-TH 75kW
XF-TH 90kW
XF-TH 110kW
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.
Inverter Type
Torque
200V class 400V class
FR-B-750 FR-B-750
FR-B-1500 FR-B-1500
FR-B-2200 FR-B-2200
FR-B-3700 FR-B-3700
FR-B-5.5K
1) FR-B-7.5K
FR-B-7.5K
FR-B-11K
FR-B-15K
FR-B-15K
FR-B-22K FR-B-22K
FR-B-30K
FR-B-37K
FR-B-37K
FR-B-45K
FR-B-55K
FR-B-55K
FR-B-75K FR-B-75K
2)
- FR-B-90K
- FR-B-110K
Torque characteristic 1)
When 100% is the rated motor torque at 60Hz
100
90
48
40
6
When 100% is the rated motor torque at 50Hz
85
75
40
33
6
*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.
Torque characteristic 2)
When 100% is the rated motor torque at 60Hz
When 100% is the rated motor torque at 50Hz
100
498
SELECTION
20 50 60 120
Frequency (Hz)
20 50 60 120
Frequency (Hz)
120
100
85
6 50 60
Frequency (Hz)
83
70
6 50 60
Frequency (Hz)