FE FRENIC-Multi series, Instruction Manual

Page: 125 / 196

5-50
C21
Timer Operation
1 enab a run command and continues C2 les or disables a timer operation that is triggered by
for the timer count previously specified with the
／
keys. The operating procedure for
the timer operation is given below.
Data for C21 Function
0 Disable timer operation
1 Enable timer operation
• Pressing the key during
• Even
timer countdown quits the timer operation.
timer to 0 no longer starts the timer operation with the if C21 = 1, setting the
k
• Applying terminal command key command can also
start the timer operation.
Operating procedur operation
ey.
FWD or REV instead of the
e for timer (example)
Preparation
• Set E43 data to itor) to and set
C21 to "1" (Enable timer operation).
• Spec refe p s
a frequency command source, press
"13" (LED mon display the timer count on the LED monitor
ify the rence frequency to ap ly to timer operation. When the keypad is selected a
the key to shift to the speed monitor and specify
the de
Triggeri
sired reference frequency.
g the timer operation with the n key
(1) While watching the timer count displayed on the LED monitor, press the
／
key to
he timer for the desired count in seconds. Note that the timer count on the LED
tor appears as an int
set t
moni
egral number without a decimal point.
(2) Press the key. The motor starts running and the timer starts counting down. If the timer
counts down, the motor stops without pressing the key. (Even if
ys any item except the timer count, the timer operation is possible
the LED monitor
displa .)
After the countdown of the timer operation triggered by a terminal command such as
FWD , the inverter decelerates to stop and at that moment the LED monitor displays
end
and any LED monitor item (
0
for the timer count) alternately. Turning FWD
OFF returns to the LED monitor item.
1, C33
Analog Input Adjustment for [12] (Offset an
C3
C36, C38
C41, C43
d Filter time constant)
Analog Input Adjustment for [C1] (C1 function) (Offset and Filter time constant)
Analog Input Adjustment for [C1] (V2 function) (Offset and Filter time constant)
C31, C3
(C1 func
the exte
C33, C3
terminal
(V2 function), respectively. The larger the time
constant
the resp
e input voltage fluctuates due to line noises,
increase
6 or C41 configures an offset for an analog voltage/current input at terminal [12], [C1]
tion) or [C1] (V2 function), respectively. The offset also applies to signals sent from
rnal equipment.
8 or C43 configures a filter time constant for an analog voltage/current input at
[12], [C1] (C1 function) or [C1]
, the slower the response. Specify the proper filter time constant taking into account
onse speed of the machine (load). If th
the time constant.