Mitsubishi Electric FR-A700 Instruction Manual page 684

Special operation
Connecting the magnetic contactors to the inverter
Parameter setting for source logic:
Pr. 185 = 7, Pr. 192 = 17, Pr. 193 = 18, Pr. 194 = 19
Inverter/commercial power-supply switchover
Fig. 6-248: Connecting the magnetic contactors
Take caution for the capacity of the sequence output terminal. The used terminal changes
depending on the setting of Pr.190 to Pr. 196 "Output terminal function selection".
Output Terminal
Inverter open collector output
(RUN, SU, IPF, OL, FU)
Inverter relay output (A1-C1, B1-C1, A2-B2, B2-C2)
Relay output option FR-A7AR
Tab. 6-171: Output terminal capacity
When connecting a DC power supply, insert a protective diode. When connecting an AC
power supply, connect arelay output option (FR-A7AR) and use a contact output.
The used terminal changes depending on the setting of Pr.180 to Pr. 189 "Input terminal
function selection".
NOTES Use the commercial power supply switchover function in external operation mode. Be sure
to connect the other power supply since the function is not performed normally unless the
connection terminals R1/L11, S1/L21 are not connected to the other power supply (power
supply that does not pass MC1).
Be sure to provide mechanical interlocks for MC2 and MC3. The inverter will be damaged if
main supply voltage is connected to the output.
6 - 504
I
Power
I
supply
I
Inverter start (forward rotation)
Operation interlock
External thermal relay
Frequency setting signal
MC1
L1
L2
L3
L11
L21
STF
CS
MRS
Reset
JOG (OH)
RES
PC
10
2
5
Output Terminal Permissible Load
24V DC, 0.1A
230V AC, 0.3A
30V DC, 0.3A
MC2
External
thermal relay
MC3
U
V
W
MC1
(MC1) IPF
MC2
MC3
(MC2) OL
MC3
MC2
(MC3) FU
SE
Parameter
M
24 V DC
I001238E