Watlow Series 145 - Manual (Page 6)

Connect according to input wiring instructions.
Remove power to the controller and the controller
from the system. Apply power to the system with
the controller removed. If the load turns off, return
the controller to the factory. If the load remains on,
there are other problems in the system that must
be resolved. Consult the factory.
The polarity is reversed on the
thermocouple.
A faulty unit.
The load will not turn off.
Repair or replace.
Check the fuses, circuit breakers, load and wiring.
Check the the ac input connections. If not present,
connect according to power wiring instructions.
An open sensor.
The load circuit is open.
The ac input is not connected or
is connected improperly.
The load will not turn on.
Action Probable Cause Problem
Troubleshooting
(1928) 145 _ - _ _ _ _ - _ 000
Series 145
Closed loop temperature limit
controller, integral setpot
Output Type
D = Electromechanical relay,
3A, Form C
Line Voltage
1 = 120V
Å
2 = 230 to 240V Å
Input and Range
Type J
601 = 32 to 600°F (0 to 315°C)
602 = 32 to 1382°F (0 to 750°C)
609 = 50 to 150°F (10 to 66°C)
Type K
603 = 32 to 2282°F (0 to 1250°C)
611 = 32 to 1112°F (0 to 600°C)
612 = 32 to 482°F (0 to 250°C)
Type R
608 = 32 to 2732°F (0 to 1500°C)
Type S
607 = 32 to 2732°F (0 to 1500°C)
Type T
604 = 150 to 662°F (66 to 350°C)
605 = -328 to 150°F (-200 to 66°C)
610 = -125 to 425°F (-87 to 218°C)
RTD (100
Ω
)
101 = -100 to 1112°F (-73 to 600°C)
103 = 32 to 482°F (0 to 250°C)
Limit Mode
1
= High limit with manual reset on power loss
2 = Low limit with manual reset on power loss
3 = High limit with automatic reset on power loss
4 = Low limit with automatic reset on power loss
NOTE: Electromechanical relays are warranted for 100,000
closures only. Solid state switching devices recommended for applications
requiring extended service life.
NOTE: Conformal coated product is available; consult factory.
NOTE: This output should be used with inductive loads.
NOTE: User documentation may be available in French, German, Spanish,
Italian, and Dutch, as well as English. Check Watlow’s website
(www.watlow.com/) for availability. Specify language at time of order.
The Series 145 is warranted to be free of defects in
material and workmanship for 36 months after delivery to
the first purchaser for use, providing that the unit has not
been misapplied. Since Watlow has no control over its use or
misuse, we cannot guarantee against failure. Watlow’s
obligations hereunder, at Watlow’s option, are limited to
replacement or refund of purchase price of a unit which
upon examination proves to be defective within the
warranty period. This warranty does not apply to damage
resulting from transportation, alteration, misuse or abuse.
• Call or fax Customer Service for a Return Material
Authorization (RMA) number before returning a product.
• Put the RMA number on the shipping label, and also a
description of the problem.
• A 20% of net price restocking charge applies to all
standard units returned to stock.
Contact:
• Phone: +1 (507) 454-5300
• Fax: +1 (507) 452-4507
If you encounter a problem with your Watlow controller,
verify that your wiring is correct for your specific model
number. If the problem persists, an Application Engineer
can discuss your application with you.
Before calling, please have the complete model number
and user’s manual available. You can get technical support
by dialing +1 (507) 494-5656, 7 a.m. to 7 p.m. Central
Standard Time.
The Series 145 User’s Manual is copyrighted by Watlow
Winona, Inc., © August 2000, with all rights reserved.
(1926)
Technical Support
Returns
Warranty Ordering Information
6 ■ Watlow Series 145 User’s Manual