Hitachi WJ200 Series Instruction Manual page 199

3−118
<1> Position setting
<2> Speed setting (frequency setting)
<3> Acceleration and deceleration time
(DC braking state is held until RUN command is turned off.)
RUN command
Output freq.
Set speed
-
POK output signal
I
n simple positioning mode, the frequency and acceleration/deceleration are according to current
settings as same as normal operation.
- Depending on DC braking and creep speed setting, positioning may go off the point.
- If the position value specified by the position setting is small, the inverter may decelerate the
motor for positioning before its speed reaches the speed setting.
- In simple positioning mode, the rotation direction setting (FW or RV) of the operation
command is ignored. The operation command simply functions as the signal to run or stop the
motor. The motor runs in the forward direction when the value of "target position" –(minus)
"current position" is positive, or in the reverse position when the value is negative.
- The position at power up is home position (Position data = 0). If power is removed, current
position data is lost.
- When the operation command is turned on with 0 specified as the position setting, positioning
is completed (with DC braking) without running the motor.
- Specify "03 (only to reset a trip)" for reset mode selection (C102). If a value other than "03" is
specified to C102, the current position counter will be cleared when the inverter reset terminal (or
reset key) is turned on. Be sure to specify "03" for reset mode selection (C102) if you intend to use
the value of the current position counter for operation after recovering the inverter from tripping
by turning on the reset terminal (or reset key).
- If the PCLR function is assigned to a input terminal, turning it on to clear the current position
counter.
- In simple positioning mode, ATR terminal is invalid. (Torque control does not work.)
- If current position is out of the set range, inverter will be tripped (E83) and coasting status.
In the simple positioning mode, the inverter runs the motor until the machine reaches
the target position according to the following settings, and then stops the motor with
DC braking.
If the position value specified by the position setting is small, the
inverter decelerates the motor for positioning before the speed
reaches.
ON
Creep speed (P015)
Position
ON