Koso REXA Electraulic Xpac, Инструкция по установке и эксплуатации

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Xpac
Installation Manual -- Version 5.1 (5/08)
32
REXA
Electraulic Actuators & Drives
When the
SEtUP
mode is entered, the display briefly shows"
SEtUP
"
followed by the first sub-menu, CAL. However, if a passcode has
been entered to restrict access, the "
SEtUP
" message is followed by
PC in the left two digits. At this point the passcode must be entered.
To do so, press the (E)NTER key. PC will begin to blink and the three
blank digits will change to 000. Use the Scroll Up and Scroll Down
keys to select the passcode value. Press (E)NTER. If the entered
value is correct, the CAL sub-menu will be displayed. If incorrect,
"error" will be briefly displayed followed by PC.
6.3.1 CAL - Calibration Sub-menu
REXA
V62 software now uses Propor Integral (PI) control
in the positioning action of all drives. As the actuator approaches the
target position, the motor will decelerate (Proportional Action) from
a maximum speed to a minimum speed and then at a pre-selected
point, begin accelerating (Integral Action) at a fixed rate. Tuning of
the PI parameters will provide maximum response to a control signal
change without overshoot.
The speed of the unit is equal to the
Gain times the difference between
the current and traget positions. Upper limits on the speed remains
the value set for
High Speed and the lower limit is the value set for
Minimum Speed ( Figure 6.3A).
Integral action utilizes the values of
Acceleration Breakpoint
and
Low
Acceleration
in the ACC Branch.
The speed will increase at the value
for
Low Acceleration
, but will not
start this increase until it reaches
the
Acceleration Breakpoint
.
High Speed
(HS) specifies the velocity, in percent of maximum, at
which the actuator will move.
High Speed
may be set to any value
from 5% to 125%. Stroking speed for a given size and power module
is shown in Technical Memo #1, Stroking Speed.
Full actuator output is achieved for speed settings between 40% and
100% at normal operating temperatures. Speeds outside of this range
may result in reduced actuator output (B & C size Power Modules).
As a reminder, any value set in
High Speed
that is less than 40% or
greater than 100% will cause HS to blink.
High Acceleration
(HA) specifies the rate, in percent of maximum, at
which the velocity will increase until the speed set in HS is achieved.
Values from 1 to 99 may be set. For most applications, an accelera-
tion of 99 is acceptable.
An optional speed configuration de-
veloped to reduce the effects of Water
Hammer is available. Please see
section C.6.3.
HI SPEED
Figure 6.3A Gain
HIGH ACCEL.