Koso REXA Electraulic Xpac, Installation And Operation Manual

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REXA
Electraulic Actuators & Drives
Xpac
Installation Manual -- Version 5.1 (4/09)
H-7
H2.4 Module Cable
A thermostatically controlled cartridge heater and solenoid power
(optional; only connected on spring fail units) are installed in the ½D
and D size power modules. The module cable supplies power for
the heater (black and white) and solenoid (blue and blue/black) and
contains the actuator ground (green/yellow).
SHOCK HAZARD
Hazardous voltage levels are present in the module cable.
Insure that the electrical power to the drive is off before
connecting the module cable.
H2.4.1
Enclosure Termination
The black and white wires of the triad and the two blue wires are
connected to the terminal blocks located on the left side of the
enclosure. Connect the wires by following drawing: DWG D97135
for the ½D,P9 or DWG D91735-P40 for the D,P40. The green/yel-
low ground wire should be terminated to the green ground screw
on the metal backplane.
H2.4.2
Actuator Termination
The cable is terminated in the junction box of the ½D and D size
power modules as shown on drawing S96502.
H2.5 User Connections
Minimum user connections to the actuator are the electric power
and control signal. Connections for other option contained on the
auxiliary boards (position transmitter, alarm, electronic limit switches)
are detailed in Appendix C.
H2.5.1
Actuator Powe
r
The minimum wire gauge providing power must be of sufficient
size to insure that rated voltage is supplied to the unit. The ½D,
P9 requires 240 VAC, -20%/+10%, 3 phase @ 50 amps for proper
operation. The D, P40 requires 240 VAC, -20%/+10%, 3 phase @
150 amps for proper operation.
Power connections are made at the bottom of the enclosure ac-
cording to drawing A97134.
H2.5.2
Control Signals
The analog control signal (typically 4-20 mA) is connected to the low
level signal terminal block located on the right side of the enclosure.
Connect the cable by following DWG D97135 for the ½D,P9 or DWG
D97135-P40 for the D,P40.
Pulse signals would connect to the Pulse Auxiliary Board located
atop the PCP (see Appendix P).
The booster pump does not con-
tain an integral heater. Insulation
and heat tracing may be required
at ambient temperatures below
20º F (-7ºC). Refer to TM19 for
details.
A cable consisting of 3 twisted
pairs and a triad is supplied as the
module cable. Only the triad and
blue pair are used. Cutback the
remaining wires ensuring no shorts
are present.
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