Main Circuit Terminals - Mitsubishi Electric FR-F820-00046 Instruction Manual

Fr-f800 series
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2.5

Main circuit terminals

2.5.1
Details on the main circuit terminals
Terminal
Terminal name
symbol
R/L1, S/L2, T/
AC power input
L3
U, V, W
Inverter output
R1/L11, S1/
Power supply for the control circuit
L21
P/+, N/-
Brake unit connection
Brake unit connection for the FR-
F820-00770(18.5K) to 01250(30K)
P3, N/-
or FR-F840-00470(22K) to
01800(75K)
DC reactor connection for the FR-
F820-02330(55K) or lower or the
FR-F840-01160(55K) or lower
P/+, P1
DC reactor connection for the FR-
F820-03160(75K) or higher or the
FR-F840-01800(75K) or higher
Do not use terminals PX and PR. The terminal PX is provided for the FR-F820-00490(11K) or lower and the FR-
PR, PX
F840-00250(11K) or lower. The terminal PR is provided for the FR-F820-01250(30K) or lower and the FR-F840-
01800(75K) or lower.
Earth (ground)
Terminal function description
Connect these terminals to the commercial power supply.
Do not connect anything to these terminals when using the high power factor
converter (FR-HC2) or the power regeneration common converter (FR-CV).
Connect these terminals to a three-phase squirrel cage motor or a PM motor. —
Connected to the AC power supply terminals R/L1 and S/L2. To retain the
fault display and fault output, or to use a high power factor converter (FR-
HC2) or a power regeneration common converter (FR-CV), remove the
jumpers across terminals R/L1 and R1/L11 and across S/L2 and S1/L21, and
supply external power to these terminals.
The power capacity necessary when separate power is supplied from R1/
L11 and S1/L21 differs according to the inverter capacity.
FR-F820-00630(15K) or lower or FR-F840-00380(18.5K) or lower: 60 VA,
FR-F820-00770(18.5K) or higher or FR-F840-00470(22K) or higher: 80 VA
Connect the brake unit (FR-BU2, FR-BU, or BU), power regeneration
common converter (FR-CV), power regeneration converter (MT-RC), high
power factor converter (FR-HC2), or DC power supply (under DC feeding
mode).
When connecting multiple inverters, FR-F820-00770(18.5K) to 01250(30K)
or FR-F840-00470(22K) to 01800(75K), in parallel using the FR-CV or FR-
HC2, always use either terminal P/+ or P3 for the connection. (Do not use
terminals P/+ and P3 together.)
Do not connect the DC power supply between terminals P3 and N/-. Use
terminals P/+ and N/- for DC feeding.
Remove the jumper across terminals P/+ and P1, and connect a DC reactor.
When a DC reactor is not connected, the jumper across terminals P/+ and
P1 should not be removed.
Always connect a DC reactor, which is available as an option.
For earthing (grounding) the inverter chassis. Be sure to earth (ground) the
inverter.
Refer to
page
66
76
81
57
2. INSTALLATION AND WIRING
2.5 Main circuit terminals
1
2
3
4
5
6
7
8
9
10
47

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