Watlow Electric Network Card Power Series User Manual

P O W E R S E R I E S C O N T R O L L E R S  
Microprocessor-Based  
SCR Power Controller  
Designed for  
Application Flexibility  
Watlow has manufactured solid state power controllers for  
over thirty years. Watlow’s POWER SERIES represents the  
latest in SCR power controller technology. This microproces-  
sor-based product offers features and application flexibility  
Features and Benefits  
Microprocessor-based technology  
Extremely versatile and field configurable  
unmatched by any other SCR power controller on the market  
today.  
Snap-fit on a pre-mounted plate  
Simplifies installation  
Capabilities of Watlow’s POWER SERIES controllers include  
single-phase and three-phase models from 65 to 250 amps.  
Field configurable phase angle or zero cross firing improves  
application flexibility on site where you need it.The 50/60Hz  
independent operation allows utilization almost everywhere  
in the world without special calibration considerations. Serial  
communication utilizing Modbusprotocol provides remote  
control setup and monitoring of load status from a nearby  
computer station or control room.  
Models 65 through 250 amp ratings  
Handles a wide range of loads  
Adjustable soft start  
Provides application flexibility  
Heater and control diagnostics capability  
Monitors actual heater and controller performance  
Electrically touch-safe package  
Enhances safety for installer and users  
On-board semiconductor fusing improves reliability by  
protecting the SCRs from heater short circuits. Plus,  
on-board heater bakeout and control diagnostics can help  
eliminate initial start up problems. All these benefits are in a  
touch-safe package that can be quickly and easily mounted  
in your control cabinet.  
Serial communications with Modbus RTU protocol  
Provides computer control and/or monitoring  
Multizone capability  
Increases application flexibility and reduces panel space  
Watlow’s POWER SERIES controllers are UL® and C-UL®  
recognized, so users can be assured that the controllers  
meet world safety and operational standards.  
UL® and C-UL® are registered trademarks of the Underwriter’s Laboratories, Inc.  
Modbus™ is a trademark of Schneider Automation Inc.  
WIN-PS-0403  
1241 Bundy Boulevard  
Winona, Minnesota 55987-5580 USA  
Phone: 507-454-5300  
Fax: 507-452-4507  
© 2003 Watlow Electric Manufacturing Company  
Printed in the USA on Recycled Paper, 15% Postconsumer Waste  
 
Package Style C Dimensions  
Mounting Plate Dimensions  
POWER SERIES Front View  
Release Tab  
Mounting Holes (4)  
7 mm  
(0.27 in.)  
354 mm  
(14.0 in.)  
178 mm  
(7.00 in.)  
Key Slots  
POWER SERIES Top View  
39 mm  
(1.53 in.)  
25 mm  
(0.97 in.)  
102 mm  
(4.00 in.)  
151 mm  
(5.93 in.)  
200 mm  
(7.9 in.)  
191 mm  
(7.5 in.)  
POWER SERIES Features  
 
Single Phase Configuration  
This configuration can be purchased with any or all the  
features available on the POWER SERIES, based on  
customer preference. It is intended for resistive heaters,  
but can also be used on transformer connected loads in  
the phase angle firing mode.  
Three-Phase, Two Leg Configuration  
This configuration is intended for zero cross firing only into  
a stable resistive heater. Typically, a three-phase delta or  
ungrounded wye connected heater is used and only two of  
the three V~ line phases are switched.The third phase  
is a direct connection through a bussbar on board the  
POWER SERIES. Heater current monitoring and kVA options  
are available via the heater diagnostics option.  
Three-Phase, Three Leg Configuration  
All POWER SERIES options are available with this  
configuration. It works well with phase angle firing into a  
three-phase, three-wire wye or delta connected heater. In this  
configuration, the more common applications are transformer  
connected loads with heaters requiring a soft start and/or  
current limiting.  
The three-phase, four-wire configuration is intended for zero  
cross firing into a three-phase grounded wye/star heater (This  
is a separate hardware option, model number dependent.)  
Single-Phase, Multizone Configuration  
This configuration is available in two and three single-phase  
zones and all the features of a single-phase unit are  
available. (Note that there is only one alarm relay and all  
zones in the controller must use the same control method.)  
Heater Diagnostics  
Heater diagnostics may include some or all of the  
features that require heater current monitoring, depending  
on the model selected. Heater current monitoring is only  
available with heater diagnostics installed on the controller.  
The features dependent on heater current monitoring are  
heater bakeout, current limiting, heater kVA monitoring,  
retransmit and heater monitoring alarms such as open heater,  
heater out of tolerance, load balance and shorted SCR  
detection/error. Heater diagnostics must also be installed  
if you need phase angle control with current limit.  
Amperage Chart—50˚C (122˚F)  
Non-Fan Cooled  
2 Zone and  
3 Zone and  
Single Phase  
3 Phase, 2 Leg  
3 Phase, 3 Leg  
Code Amperage Code Amperage Code Amperage  
Fan Cooled  
Single Phase  
3 Phase, 2 Leg  
3 Phase, 3 Leg  
Code Amperage Code Amperage Code Amperage  
North American Sales Offices: Atlanta, (770)972-4948 • Austin, (512)249-1900 • Birmingham, (205)678-2358 • Charlotte, (704)573-8446 •  
Chicago, (847)458-1500 • Cincinnati, (513)398-5500 • Cleveland, (330)467-1423 • Dallas, (972)620-6030 • Denver, (303)798-7778 •  
Detroit, (248)651-0500 • Eastern Canada, (450)433-1309 • Houston, (281)440-3074 • Indianapolis, (317)575-8932 • Kansas City, (913)897-3973 •  
Los Angeles, (714)935-2999 • Louisiana, (318)864-2864 • Maryland/Virginia, (215)345-8130 • Minneapolis/Manitoba, (952)892-9222 •  
Nashville, (615)264-6148 • New England, (603)882-1330 • New York/New Jersey/Philadelphia, (215)345-8130 • New York,Upstate, (716)438-0454 •  
Ontario, (905)979-3507 • Orlando, (407)351-0737 • Phoenix, (602)298-6960 • Pittsburgh, (412)322-5004 • Portland, (503)245-9037 •  
Raleigh/Greensboro, (336)766-9659 • St.Louis, (314)878-4600 • Sacramento, (707)425-1155 • San Diego, (714)935-2999 •  
San Francisco, (408)434-1894 • Seattle, (425)222-4090 • Tampa/St. Petersburg, (407)647-9052 • Tulsa, (918)496-2826 •  
Western Canada, (604)444-4881 • Wisconsin, North (920)993-2161 • Wisconsin, South (262)723-5990  
Asian Sales Offices: Australia, +61 (3) 9335-6449 • China, +86 (21) 6277-2138 • Japan, +81 (03) 5403-4688 • Korea, +82 (02) 575-9804 •  
Malaysia, +60 (4) 641-5977 • Singapore, +65 777-9488 • Taiwan, +886 (0) 7-288-5168 European Sales Offices: France, +33 (01) 3073-2425 •  
Germany, +49 (0) 7253-9400-0 • Italy, +39 (02) 458-8841 • Sweden, +46 31 7014959 • United Kingdom, +44 (0) 115-964-0777  
Latin American Sales Office: Mexico, +52 (442) 217-6235  
 

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