Mitsubishi FR-A800

Connection of stand-alone option units
72
INSTALLATION AND WIRING
 Do not remove the jumper across terminals P/+ and P1 except when connecting a DC reactor (FR-HEL).
• When the regenerative brake transistor is damaged, the following sequence is recommended to prevent overheat and
burnout of the brake resistor.
 Since the FR-A820-00630(11K) or higher and FR-A840-00310(11K) or higher are not provided with the PX terminal, a jumper need not to be
removed.
 Refer to the table below for the thermal relay types for each capacity. Refer to the diagram below for the connection. Always install a thermal
relay when using a brake resistor whose capacity is 11K or higher.
NOTE
• Always use the dedicated brake resistor.
• For FR-A820-00490(7.5K) or lower and FR-A840-00250(7.5K) or lower, the jumper across terminals PR and PX must be
disconnected before connecting the dedicated brake resistor. Doing so may damage the inverter.
• A brake resistor cannot be used with options such as brake units, high power factor converters, and power regeneration
converters.
• For the use of a brake resistor other than FR-ABR, contact your sales representative.
FR-A820-00630(11K),
FR-A840-00310(11K), FR-A840-00380(15K)
FR-A820-00770(15K) to FR-A820-01250(22K),
FR-A840-00470(18.5K), FR-A840-00620(22K)
Power supply
voltage
High-duty brake
resistor
brake resistor
Thermal relay type
(Mitsubishi product)
Contact rating
200 V
FR-ABR-0.4K TH-N20CXHZ-0.7A
110 VAC 5A,
220 VAC 2A (AC11 class)
110 VDC 0.5A,
220 VDC 0.25A (DC11 class)
FR-ABR-0.75K TH-N20CXHZ-1.3A
FR-ABR-2.2K TH-N20CXHZ-2.1A
FR-ABR-3.7K TH-N20CXHZ-3.6A
FR-ABR-5.5K TH-N20CXHZ-5A
FR-ABR-7.5K TH-N20CXHZ-6.6A
FR-ABR-11K TH-N20CXHZ-11A
FR-ABR-15K TH-N20CXHZ-11A
FR-ABR-22K TH-N60-22A
400 V
FR-ABR-H0.4K TH-N20CXHZ-0.24A
FR-ABR-H0.75K TH-N20CXHZ-0.35A
FR-ABR-H1.5K TH-N20CXHZ-0.9A
FR-ABR-H2.2K TH-N20CXHZ-1.3A
FR-ABR-H3.7K TH-N20CXHZ-2.1A
FR-ABR-H5.5K TH-N20CXHZ-2.5A
FR-ABR-H7.5K TH-N20CXHZ-3.6A
FR-ABR-H11K TH-N20CXHZ-6.6A
FR-ABR-H15K TH-N20CXHZ-6.6A
FR-ABR-H22K TH-N20-9A
Brake resistor
Jumper∗1
Connect the brake resistor
across terminals P/+ and PR.
Terminal PR
Terminal P/+
Connect the brake resistor
across terminals P3 and PR.
Brake resistor
Terminal PR
Terminal P3
R
FR-ABR
Thermal
relay
(OCR)(∗2)
Inverter
PX
PR
P/+
(P3)
S/L2
T/L3
R/L1
Disconnect jumper. (∗1)
MC
Power
Supply
T
F
ONOFF
MC
MC
OCR
Contact
<Example 1>
MC
Power
Supply
<Example 2>
S/L2
T/L3
R/L1
Inverter
(OCR)(∗2)
Thermal
relay
Disconnect jumper. (∗1)
B
C
T
F
ONOFF
OCR
Contact
MC
MC
R
FR-ABR
PX
PR
P/+
(P3)
To the inverter
P/+ terminal
To the ABR
TH-N20
1/L
1
5/L
3
2/T
1
6/T
3