Koso REXA Electraulic Xpac, Инструкция по установке и эксплуатации

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REXA
Electraulic Actuators & Drives
Xpac
Installation Manual -- Version 5.1 (5/08)
G-5
G.1.3 RECHARGING
The recharge cycle will only occur if:
1.
The PCP is in the
Auto mode,
2.
The pressure transducer output is less than
rl
3a. Power is restored after a loss
or
3b. Trip signal is removed
or
3c. The PCP reset button (located in the upper left corner of the
board) is pushed.
Recharging the accumulator is accomplished by running the motor in
the trip direction (with the solenoids open), pulling oil out of the auxil-
iary cylinder and pumping it into the accumulator. When the transducer
output equals
rH
, the motor is stopped and the solenoids are closed.
The actuator will then begin tracking the normal control signal.
Note
:
The actuator is shipped in the failed or tripped condition. The actuator
may initially power up in
SEtUP mode. With the trip signal inactive (or not
connected), put the actuator in Auto then either press the reset button or
cycle power off and back on. The actuator will go through a fail cycle, a
re-charge cycle and then return to following the control signal. If this opera-
tion is not performed, the actuator will follow the control signal normally, but
the accumulator will remain uncharged, rendering the actuator incapable of
performing a trip or failure.
For normal operation, the ac-
cumulator does not require the
addition of oil.