Tuning and Operating, Chapter 5
24
WATLOW Series 945 User's Manual
Alarm Outputs
Figure 34 -
Alarms Jumper
Location.
NOTE:
Depending on the
unit you order, your
control may have 0, 1,
or 2 alarm jumpers.
The alarm output de-energizes upon an alarm or power interruption to the 945's
power supply. When you select N.O. Contacts, the contact is open when an alarm
occurs. When selecting N.C. Contacts, the contact closes when an alarm occurs.
A007-1828
AL1
AL2
N.O.
Contacts
(Form A)
N.C.
Contacts
(Form B)
Control Chassis - Top View
Options Board
A007-1954
Changing the Position of an Alarm Jumper
1. Remove power from the control. Turn the front panel screw 90°
counterclockwise.
2. Grip the front panel bezel and pull it straight out from the control case. The
control chassis will come out of the case as you pull the bezel.
3. Set the jumper to the position you want. See below for jumper location.
4. Return the control chassis to the case. Be sure you have it oriented
correctly. Press firmly, but gently, to seat the chassis.
