Vaisala WAC155, User Manual

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4. Enter the power and signal cables through the cable glands. For better protection against
RF interference, ground the cable shield.
See
Connections (page 14) .
5. Connect the wires to the X2 removable screw terminal block. Tighten the output cable
glands.
See
Cable Connections (page 16) .
6. Reattach the cover with the four screws.
7. Attach the unit on the top of a pole mast with the mounting clamp.
See Mounting WAC155 on Top of Pole Mast (page 27) .
8. Mount the sensors to the cross arm.
See Mounting Wind Sensors to Cross Arm (page 28) and the sensor manuals.
9. Before erecting the mast, align the cross arm.
See Alignment (page 27) .
In tower installations you may have to mount and align the sensors on existing
structures.
If you have the component board PCB210450B, the maximum
operating voltage is 15.5 V instead of 31.5 V.
CAUTION!
3.3 Service Connector and Jumper Settings
You can configure and maintain the unit through:
• RS-485 line on terminals X2/7-8
• Service connector X5
If RS-485 is not available, you can use X5. X5 is a 6-terminal pin header with pin 2 removed for
polarization. It can be used as a service connector and as a jumper terminal.
Figure 3 X5 Service Connector and Jumper Settings
Chapter 3 – Installation
13