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PARAMETERS
147
(3) Pr. 501 "motor switch-over selection" = "2" (Direct Method)
When the start signal is entered, the motor is started by the inverter. When the conditions for starting the next
motor are enabled, the MCs between inverter and motor and between power supply and motor are switched
over to change the inverter-driven motor to commercial power supply operation, starting the next motor by the
inverter. Reversely, when the conditions for stopping the motors are enabled during running of several
motors, the motors are stopped, beginning with the one started first (run by the commercial power supply).
Note:
•
When the inverter is reset, the sequence of starting the motors to be driven returns to the initial
status. (Pr. 501 = 1 or 2)
•
You cannot write values to Pr. 500 and Pr. 501 during operation. Also when the Pr. 500 or Pr. 501
setting is changed in a stop state, the sequence of starting the motors to be driven returns to the
initial status.
<System configuration>
(1) Pr. 501 "motor switch-over selection" = 0 (Basic Method)
RST UVW
RT
SD
10
2
5
1
4
FU
OL
IPF
SE
R02
R03
R04
MC
R02
MC
R03
DC24V
0
24V
R04
R03
R02
MC
M1
X24
STF
STR
JOG
X14
Power
supply
Inverter
M4
M3
M2
MC
R04
Reverse rotation
Forward rotation
Advanced PID
control selection
action switching
PID forward-reverse
Setting potentiometer
(Set point setting)
Deviation signal
Supplied water
For 2-wire type
Detector
Sink logic
When Pr. 183=14, Pr. 185=24,
Pr. 194=42, Pr. 193=43, Pr. 192=44
(Process value) 4 to 20mA
Distributed water
Example
PUMP4
PUMP3
PUMP2
PUMP1
supply
Power
+
-
4