Koso REXA Electraulic Xpac, Installation And Operation Manual

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P. Pulse Operating System
The pulse operating system developed for the
Xpac
makes opti-
mum use of the actuator’s capabilities. Dual acceleration, minimum
modulating and water hammer features are available. In addition,
the error diagnosis and alarm function are active. This is accom-
plished by keeping the PCP in control. Pulses are not merely motor
power commands, but change the target position. The actuator will
continue moving until the actual position satisfies the target posi-
tion. The motion (speed, acceleration, resolution) of the unit will be
in accordance with the values set during calibration.
To receive the pulses, a pulse auxiliary board is added to the PCP.
This board accepts 3 or 4 wire signals in the range of 24 to 120
volts, AC or DC. The pulses are interpreted by the PCP based on
the values set for the two pulse control parameter, Pulse Duration
and Pulse Increment.
INSTALLATION
Wiring for pulse input is performed at the pulse board located on
top of the PCP. A green block provides four terminals to connect
the HIGH signal (terminals 1 and 2) and the LOW signal (terminals 3
and 4). For 3-wire operation, terminals 2 and 4 should be jumpered
together and connected to the common of the input signals.
PCP
Both Pulse inputs active simultaneous-
ly are ignored. Pulses received while
in LOCAL or SEtUP are also ignored.
Connections 2 & 3 on the main 24 pin
terminal block are not used.
Pulse Auxiliary Board
REXA
Electraulic Actuators & Drives
Xpac
Installation Manual -- Version 5.1 (5/98)
P-3