Connection of stand-alone option units
Installation and wiring
2 - 94
Connection example with the MT-BR5 type resistor unit
After wiring securely, set Pr. 30 "Regenerative function selection"= "1" and Pr. 70 "Special regenerative
brake duty" = "0 (initial value)".
Set Pr. 0 "Brake mode selection" = "2" in the brake unit FR-BU2.
When wiring, make sure to match the terminal symbol (P/+, N/-) at the inverter side and at the
brake unit (FR-BU2) side. (Incorrect connection will damage the inverter and brake unit.)
When the power supply is 400 V class, install a stepdown transformer.
The wiring distance between the inverter and brake unit (FR-BU2), and between the brake unit
(FR-BU2) and resistor unit (MT-BR5) must be within 5 m each. Even when the wire is twisted, the
cable length must be within 10 m.
The contact between TH1 and TH2 is open in the normal status and is closed at a fault.
$
The CN8 connector used with the MT-BU5 type brake unit is not used.
I002410E
Fig. 2-65:
Connection example with the MT-BR5 type resistor unit
NOTE
The stall prevention (overvoltage), oL, does not occur while Pr. 30 "Regenerative function selec-
tion" = "1" and Pr. 70 "Special regenerative brake duty" = "0% (initial value)." (Refer to page 5-713.)
MC
R/L1
M
S/L2
T/L3
U
V
P/+
N/-
P
PR
W
MCCB
TH1
TH2
MC
CR1
MC
CR1
T
*2
P
N
BUE
SD
P
PR
Three-phase AC
power supply
≤
10m
ON
OFF
Motor
Inverter
$
Brake unit
FR-BU2
Resistor unit
MT-BR5
Summary of Contents for FR-A820-00046 (0.4K)
Page 2: ......
Page 4: ......
Page 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Page 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Page 1189: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1190: ...EC Declarations of Conformity Appendix A 50 ...
Page 1191: ...Appendix EC Declarations of Conformity FR A800 A 51 ...
Page 1192: ...EC Declarations of Conformity Appendix A 52 ...
Page 1193: ...Appendix EC Declarations of Conformity FR A800 A 53 ...
Page 1194: ...EC Declarations of Conformity Appendix A 54 ...
Page 1195: ...Appendix EC Declarations of Conformity FR A800 A 55 ...
Page 1196: ...EC Declarations of Conformity Appendix A 56 ...
Page 1197: ...Appendix EC Declarations of Conformity FR A800 A 57 ...
Page 1198: ...EC Declarations of Conformity Appendix A 58 ...
Page 1199: ...Appendix EC Declarations of Conformity FR A800 A 59 ...
Page 1200: ...EC Declarations of Conformity Appendix A 60 ...
Page 1201: ...Appendix EC Declarations of Conformity FR A800 A 61 ...
Page 1202: ...EC Declarations of Conformity Appendix A 62 ...
Page 1203: ...Appendix EC Declarations of Conformity FR A800 A 63 ...
Page 1204: ...EC Declarations of Conformity Appendix A 64 ...
Page 1205: ...Appendix EC Declarations of Conformity FR A800 A 65 ...
Page 1206: ...EC Declarations of Conformity Appendix A 66 ...
Page 1207: ...Appendix EC Declarations of Conformity FR A800 A 67 ...
Page 1208: ...EC Declarations of Conformity Appendix A 68 ...
Page 1209: ...Appendix EC Declarations of Conformity FR A800 A 69 ...
Page 1210: ...EC Declarations of Conformity Appendix A 70 ...
Page 1211: ...Appendix EC Declarations of Conformity FR A800 A 71 ...
Page 1212: ...EC Declarations of Conformity Appendix A 72 A 7 2 FR A846 series ...
Page 1213: ...Appendix EC Declarations of Conformity FR A800 A 73 ...
Page 1214: ...EC Declarations of Conformity Appendix A 74 ...
Page 1215: ...Appendix EC Declarations of Conformity FR A800 A 75 ...
Page 1217: ......