Vaisala WHP25 User manual

USER'S GUIDE
Mains Power Supply
WHP25
M210376en-A

PUBLISHED BY
Vaisala Oyj Phone (int.):[phone]
P.O. Box 26 Fax: [phone]
FIN-00421 Helsinki
Finland
Visit our Internet pages at http://www.vaisala.com/
© Vaisala 2002
No part of this manual may be reproduced in any form or by any
means, electronic or mechanical (including photocopying), nor may its
contents be communicated to a third party without prior written
permission of the copyright holder.
The contents are subject to change without prior notice.
Please observe that this manual does not create any legally binding
obligations for Vaisala towards the customer or end user. All legally
binding commitments and agreements are included exclusively in the
applicable supply contract or Conditions of Sale.

___________________________________________________________________
VAISALA___________________________________________________________1
Table of Contents
CHAPTER 1
GENERAL INFORMATION.......................................................3
About This Manual..................................................3
Contents of This Manual.......................................3
Version Information...............................................4
Feedback..............................................................4
Safety.......................................................................4
General Safety Considerations.............................4
Product Related Safety Precautions.....................5
ESD Protection.....................................................5
Warranty..................................................................6
CHAPTER 2
PRODUCT OVERVIEW.............................................................7
Introduction to WHP25 Mains Power Supply........7
CHAPTER 3
INSTALLATION ........................................................................9
Installation Procedure............................................9
Installation Examples...........................................14
Installation with WAC151 and WA25 Wind Set...14
Installation with WAT12 and WA25 Wind Set.....16
CHAPTER 4
TROUBLESHOOTING ............................................................19
Common Problems...............................................19
Replacing Fuses.................................................20
Technical Support.................................................21
Return Instructions...............................................22
CHAPTER 5
TECHNICAL DATA.................................................................23
Specifications .......................................................23
Dimensions ...........................................................24

User's Guide ________________________________________________________
2 ______________________________________________________ M210376en-A
List of Figures
Figure 1 WHP25 Mains Power Supply ...................................8
Figure 2 Mounting WHP25 Mains Power Supply on
a Pole Mast ............................................................ 10
Figure 3 Location of the WHP25 Jumpers............................11
Figure 4 Instructions Label for the WHP25 Jumper
Settings and Wiring................................................11
Figure 5 WHP25 Connectors and Glands ............................12
Figure 6 Grounding the Cable..............................................13
Figure 7 Typical Installation with WA25 Wind Set................14
Figure 8 Wiring WAC151 with WHP25 Mains Power
Supply and WA25 Wind Set...................................15
Figure 9 Wiring WAT12 with WHP25 Mains Power
Supply and WA25 Wind Set...................................17
Figure 10 Location of the Fuses F1 and F2............................20
Figure 11 WHP25 Main Dimensions ......................................24
List of Tables
Table 1 Manual Revisions.....................................................4
Table 2 Some Common Problems and their Remedies......19
Table 3 WHP25 Mains Power Supply Specifications ..........23

Chapter 1 ___________________________________________General Information
VAISALA___________________________________________________________3
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the product.
About This Manual
This manual provides information for installing, operating,
and maintaining WHP25 Mains Power Supply.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information, provides general notes
for the product.
- Chapter 2, Product Overview, introduces the WHP25
Mains Power Supply features.
- Chapter 3, Installation, provides you with information
that is intended to help you install WHP25 Mains Power
Supply.
- Chapter 4, Troubleshooting, describes common problems,
their probable causes and remedies, and contact
information.
- Chapter 5, Technical Data, provides the technical data for
WHP25 Mains Power Supply.

User's Guide ________________________________________________________
4 ______________________________________________________ M210376en-A
Version Information
Table 1 Manual Revisions
Manual Code Description
T647en-1.1 WHP25 Power Supply Technical
Reference
U146en-1.1 WHP25 Power Supply Quick Reference
Guide
M210376en-A This manual, the first version of the
WHP25 Mains Power Supply User's
Guide. Replaces the above mentioned
Technical Reference and Quick
Reference Guide.
Feedback
Vaisala Customer Documentation Team welcomes your
comments and suggestions on the quality and usefulness of
this publication. If you find errors or have other suggestions
for improvement, please indicate the chapter, section, and
page number. You can send comments to us by e-mail:
[e-mail]
Safety
General Safety Considerations
Throughout the manual, important safety considerations are
highlighted as follows:
WARNING Warning alerts you to a serious hazard. If you do not read
and follow instructions very carefully at this point, there is
a risk of injury or even death.

Chapter 1 ___________________________________________General Information
VAISALA___________________________________________________________5
CAUTION Caution warns you of a potential hazard. If you do not read
and follow instructions carefully at this point, the product
could be damaged or important data could be lost.
NOTE Note highlights important information on using the product.
Product Related Safety
Precautions
WHP25 Mains Power Supply delivered to you has been
tested for safety and approved as shipped from the factory.
Note the following precautions:
WARNING Ground the product, and verify outdoor installation
grounding periodically to minimize shock hazard.
CAUTION Do not modify the unit. Improper modification can damage
the product or lead to malfunction.
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent
damage to electronic circuits. Vaisala products are
adequately protected against ESD for their intended use.
However, it is possible to damage the product by delivering
electrostatic discharges when touching, removing, or
inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages
yourself:

User's Guide ________________________________________________________
6 ______________________________________________________ M210376en-A
- Handle ESD sensitive components on a properly
grounded and protected ESD workbench. When this is
not possible, ground yourself to the equipment chassis
before touching the boards. Ground yourself with a wrist
strap and a resistive connection cord. When neither of the
above is possible, touch a conductive part of the
equipment chassis with your other hand before touching
the boards.
- Always hold the boards by the edges and avoid touching
the component contacts.
Warranty
For certain products Vaisala normally gives a limited one
year warranty. Please observe that any such warranty may
not be valid in case of damage due to normal wear and tear,
exceptional operating conditions, negligent handling or
installation, or unauthorized modifications. Please see the
applicable supply contract or conditions of sale for details of
the warranty for each product.

Chapter 2 ____________________________________________ Product Overview
VAISALA___________________________________________________________7
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the WHP25 Mains Power Supply
features.
Introduction to WHP25 Mains Power
Supply
WHP25 is a compact AC (Mains) Power Supply Unit
intended for outdoor use. The unit is capable of delivering
power, for example, to the WA25 Wind Set.
The nominal input power of 230 VAC can be changed by
jumpers between 100 VAC and 245 VAC (±10 %). The
WHP25 unit provides two power outputs, namely 24.0 VDC
(max 5.2 A) and 38.0 VAC (max 0.9 A).
The WHP25 unit has a waterproof housing made from cast
aluminum. The mounting hardware is included in the
delivery. It is mountable to a Ø 100 mm standard pole mast.

User's Guide ________________________________________________________
8 ______________________________________________________ M210376en-A
0212-184
Figure 1 WHP25 Mains Power Supply
The following numbers refer to Figure 1 above:
1 = Gland for AC (mains) input cable
2 = Gland for optional power output cable
3 = Gland for power output cable

Chapter 3 __________________________________________________ Installation
VAISALA___________________________________________________________9
CHAPTER 3
INSTALLATION
This chapter provides you with information that is intended
to help you install WHP25 Mains Power Supply.
Installation Procedure
Before installation, route the input (AC) power cable near
the mast, which WHP25 Mains Power Supply will be
mounted to. Make sure you selected a pole mast with a
diameter from 99 to 105 mm for installation with the
standard mounting clamp.
To install the WHP25 unit, follow the procedure below.
1. Remove the four screws holding the cover of the
WHP25 unit. Remove the cover.
2. Attach the unit to the mast at a suitable place with the
provided accessories and the standard mounting clamp.
Refer to Figure 2 on page 10.

User's Guide ________________________________________________________
10 _____________________________________________________ M210376en-A
0212-185
Figure 2 Mounting WHP25 Mains Power Supply on a
Pole Mast
The following numbers refer to Figure 2 above.
1 = Enclosure
2 = Slot screw M6, washer A6, spring washer B6, and
nut M6
3 = Mounting clamp
4 = Pole mast, diameter from 99 to 105 mm
5 = Cable gland
6=Cable
3. If the local voltage level is other than 230 VAC,
reselect the voltage with the X2 and X3 jumpers
located inside the WHP25 unit. For the location of the
jumpers, refer to Figure 3 on page 11. For instructions
how to set the jumpers for different input voltages,
refer to Figure 4 on page 11.
WARNING Improper jumper setting damages WHP25 Mains Power
Supply.
CAUTION Observe the instructions and warnings in the instruction
label inside the unit, refer to Figure 4 on page 11.

Chapter 3 __________________________________________________ Installation
VAISALA__________________________________________________________11
0212-186
Figure 3 Location of the WHP25 Jumpers
The following numbers refer to Figure 3 above.
1 = Plastic shield above the jumpers
2 = Caution label
3 = Fixing screw for the plastic shield
MAINS
INPUT
1.0 - 2.0 A
F1 2AT FUSES 8AT F2
MAINS VOLTAGE (X2, X3)
100V 115V 200V 215V 230V 245V
12345678
X4
X1
ELN
WARNING! Improper jumper setting
may cause damage.
38VAC 24VDC
0.9A 5.2A
A
Cout DCout
(RG13H) (WA25)
Total wire resistance
less than 0.3 ohms
recommended for
NOTE!
WA25 systems.
X2
X3
Factory
setting
Secondary
Primary
Figure 4 Instructions Label for the WHP25 Jumper
Settings and Wiring
4. Make sure the AC (mains) voltage is disconnected.
5. Enter the AC (mains) cable through the leftmost cable
gland and connect the input wiring to the X1

User's Guide ________________________________________________________
12 _____________________________________________________ M210376en-A
connector. To ease the wire connection the connector
has spring loaded terminals.
6. Connect the ground wire to the crimp assembled under
the screw. The wiring of the AC (mains) input to the
X1 connector is instructed in Figure 4 on page 11.
Refer to Figure 5 below for the location of the
connectors and cable glands on the WHP25 unit.
7. Tighten the input cable glands.
0212-187
Figure 5 WHP25 Connectors and Glands
The following numbers refer to Figure 5 above.
1 = Crimp and screw for AC (mains) grounding
2 = Gland for AC (mains) input cable
3 = X1: Spring loaded terminals
4 = Glands for power output cables
5 = X4: Removable screw terminal block

Chapter 3 __________________________________________________ Installation
VAISALA__________________________________________________________13
8. Enter the output power cable(s) through the rightmost
cable gland(s). For better protection against RF
interference, ground the cable as shown in Figure 6
below. Push the shield through the two washers
(number 3 in Figure 6 below) and squeeze part of it
evenly between them.
CAUTION The shield mesh must not touch the circuit board or its
components. Make sure no pieces of the mesh or other
metal parts touch the circuit board.
0212-188
Figure 6 Grounding the Cable
The following numbers refer to Figure 6 above.
1=Wires
2=Entry
3=Twowashers
4 = Backnut
5=Cable
9. Connect the output wiring to the removable screw
terminal block X4, as shown in Figure 4 on page 11.
Tighten the output cable gland(s).
10. Carefully reattach the enclosure cover with the four
screws.

User's Guide ________________________________________________________
14 _____________________________________________________ M210376en-A
Installation Examples
Installation with WAC151 and
WA25 Wind Set
Figure 7 below illustrates a typical installation with WA25
Wind Set. As a power source, it is recommended to use
WHP25 Mains Power Supply, with a mast mountable, all-
weather enclosure. For the wiring instructions, refer to
Figure 8 on page 15.
0212-189
Figure 7 Typical Installation with WA25 Wind Set

Chapter 3 __________________________________________________ Installation
VAISALA__________________________________________________________15
0212-190
Figure 8 Wiring WAC151 with WHP25 Mains Power
Supply and WA25 Wind Set

User's Guide ________________________________________________________
16 _____________________________________________________ M210376en-A
NOTE Total wire resistance of less than 0.3 Ωis recommended for
WA25 Wind Set.
Figure 8 on page 15 provides the wiring diagram for WA25
Wind Set mounted to WAC151 Cross Arm. When using the
standard power and signal cables ZZ45049 and ZZ45048,
the connections are the following:
1. For power supply, connect the YEL, GRN, and PNK
colored wires to the screw terminal #2 and the WHT,
BRN, and GRY colored wires to the terminal #3.
2. For signal output, connect wires GRN, YEL, WHT,
VIO, GRY, and PNK to terminals #7 to #12. For signal
grounding, connect BLK to the terminal #5.
3. For the optional sensor power input, connect BRN to
the terminal #6.
Installation with WAT12 and
WA25 Wind Set
Figure 9 on page 17 provides the wiring diagram for WA25
Wind Set mounted to WAT12 Analog Wind Transmitter.
NOTE An expansion connector and discrete joining wires are
included in the WAA252 accessories.

Chapter 3 __________________________________________________ Installation
VAISALA__________________________________________________________17
0206-056
Figure 9 Wiring WAT12 with WHP25 Mains Power
Supply and WA25 Wind Set

User's Guide ________________________________________________________
18 _____________________________________________________ M210376en-A
This page intentionally left blank.