Wiring
Connection of stand-alone option units
FR-E700 SC EC/ENE
3 - 41
It is recommended to configure a sequence, which shuts off power in the input side of the inverter by
the external thermal relay as shown below, to prevent overheat and burnout of the high duty brake
resistor (FR-ABR) in case the regenerative brake transistor is damaged. (The brake resistor can not be
connected to the FR-E720S-008SC and 015SC.)
햲
Refer to Tab. 3-21 for the type number of each capacity of thermal relay and the diagram for the
connection.
햳
When the power supply is 400 V class, install a step-down transformer.
I002043E
Fig. 3-35:
Protection circuits
Power Supply
Voltage
Type
High-duty
Brake Resistor
Thermal Relay Type
(Mitsubishi Product)
Contact Rating
230 V
FR-ABR
FR-ABR-0.4K
TH-N20CXHZKP-0.7A
110 V AC/5 A
220 V AC/2 A (AC 11 class),
110 V DC/0.5 A
220 V DC/0.25 A (DC 11 class)
FR-ABR-0.75K
TH-N20CXHZKP-1.3A
FR-ABR-2.2K
TH-N20CXHZKP-2.1A
400 V
FR-ABR-H0.4K
TH-N20CXHZKP-0.24A
FR-ABR-H0.75K
TH-N20CXHZKP-0.35A
FR-ABR-H1.5K
TH-N20CXHZKP-0.9A
FR-ABR-H2.2K
TH-N20CXHZKP-1.3A
FR-ABR-H3.7K
TH-N20CXHZKP-2.1A
FR-ABR-H5.5K
TH-N20CXHZKP-2.5A
FR-ABR-H7.5K
TH-N20CXHZKP-3.6A
FR-ABR-H11K
on request
FR-ABR-H15K
on request
Tab. 3-21:
Resistor and thermal relay combination
Fig. 3-36:
Connecting the thermal relay
I001458E
E
CAUTION:
●
Brake resistor can not be used with the brake unit (FR-BU2), high power factor converter
(FR-HC), power supply regeneration converter (FR-CV), etc.
●
Do not connect a resistor directly to the DC terminals P/+ and N/–. This could cause a fire.
Power
supply
Inverter
Thermo relay
(OCR)
햲
OFF
ON
Example 1
Brake
resistor
Inverter
OFF
ON
Example 2
Brake
resistor
OCR
contact
Power
supply
Thermo relay
(OCR)
햲
OCR
contact
T
햳
T
햳
To the inverter P/+
terminal
To a resistor
Содержание fr-e700 series
Страница 2: ......
Страница 4: ......
Страница 20: ...Contents XVI ...
Страница 112: ...Operation panel Operation 4 20 ...
Страница 154: ...External operation Basic settings 5 42 ...
Страница 528: ...CC Link IE Field Network Basic Parameter 6 374 ...
Страница 562: ...Meters and measuring methods Troubleshooting 7 34 ...
Страница 606: ...A 30 Index Appendix ...
Страница 607: ......