Instruction manual

PARAMETERS
129
(
3
)
Operation procedure
1) Operation procedure for running
Operation pattern

Pr. 135 = "1" (inverter's open collector output terminals)
 Pr. 136 = "2.0 s"
 Pr. 137 = "1.0 s" (Set the value equal to or longer than the time
from when MC3 switches on actually until the inverter and
motor are connected. If it is shorter, restart may not function properly.

Pr. 57 = "0.5 s"
 Pr. 58 = "0.5 s" (Always set this parameter when commercial power
supply operation is switched to inverter operation.)
Constant-speed operation,
commercial power supply operation
Switch power on.
Set parameters.
Start, inverter operation
Deceleration (stop), inverter operation
2) Signal on-off after parameter setting
MRS CS STF MC1 MC2 MC3 Remarks
Power on
OFF
(OFF)
OFF
(OFF)
OFF
(OFF)
OFF ON
(OFF ON)
OFF
(OFF)
OFF ON
(OFF ON)
External operation mode
(PU operation mode)
At start
(Inverter)
OFF ON OFF ON OFF ON ON OFF ON
Constant speed
(Commercial
power supply)
ON ON OFF ON ON OFF ON ON OFF
After MC3 switches off,
MC2 switches on.
(Motor coasts during this
period.)
Waiting time 2 seconds.
Switched to
inverter
operation for
deceleration
(Inverter)
ON OFF ON ON ON ON OFF OFF ON
After MC2 switches off,
MC3 switches on.
(Motor coasts during this
period.)
Waiting time 4 seconds.
Stop ON ON ON OFF ON OFF ON
Note: 1. This function is onl
y
activated when R1 and S1 are connected to a different
p
ower su
pp
l
y
(p
ower
supply which is not connected to MC1).
2. This function is onl
y
valid in the external o
p
eration or PU
(
s
p
eed command
)
and external
(
run
command
)
o
p
eration mode when the Pr. 135 value is other than "0". When the Pr. 135 value is
other than "0" in the operation mode other than the above, MC1 and MC3 switch on.
3. MC3 is on when the MRS and CS si
g
nals are on and STR is off, but when the motor run b
y
the
commercial
p
ower su
pp
l
y
was coasted to a sto
p
at the last time, it restarts after the time set in
Pr. 137 has elapsed.
4. Inverter o
p
eration is enabled when the MRS, STF and CS si
g
nals switch on. In other cases
(
MRS
is on), commercial power supply operation is performed.
5. When the CS si
g
nal is switched off, the motor is switched over to commercial
p
ower su
pp
l
y
o
p
eration. Note that when the STF
(
STR
)
si
g
nal is switched off, the motor is decelerated to a sto
p
by the inverter.
6. When both MC2 and MC3 are off and MC2 or MC3 is then switched on, the motor restarts after
the waiting time set in Pr. 136 has elapsed.
7. If the Pr. 135 setting is other than 0, the Pr. 136 and Pr. 137 settings are ignored in the PU
operation mode.
Also, the inverter's input terminals (STF, CS, MRS, OH) return to their ordinary functions.
8. When the commercial
p
ower su
pp
l
y
-inverter switch-over se
q
uence is selected, the PU o
p
eration
interlock function (Pr. 79 = 7) is not activated if it has been set.
9. When the terminal functions are chan
g
ed usin
g
Pr. 180 to Pr. 186 and/or Pr. 190 to Pr. 195, the
other functions ma
y
be affected. Confirm the functions of the corres
p
ondin
g
terminals before
making settings.
Pr. 140 to Pr. 143 Î
ÎÎ
Î Refer to Pr. 29.
Pr. 144 Î
ÎÎ
Î Refer to Pr. 37.
Pr. 148, Pr. 149 Î
ÎÎ
Î Refer to Pr. 22.
4