SECTION 13 - TESTING OF
ROTATION ALARM SYSTEM
13.1 Testing with unit in Rotation Alarm in full opera-
tion
a. Turn the roller apparatus to "On" position.
b. Turn the main speed control fully counterclockwise so
that the roller apparatus stops rolling.
c. The Rotation Alarm system should indicate rotation fail-
ure within 3 minutes, the LED indicators should flash
and an audible alarm should be heard.
d. Reset the Rotation Alarm by first turning the speed con-
trol clockwise and then by turning "Off', then "On" the
roller apparatus power switch.
There are two magnetic reed switches for each half of the
roller apparatus, two for the left main drive train and two for
the right drive train. Each set of two magnetic reed switches
(right or left side) are connected a single cable that runs the
entire length of the roller apparatus and terminates in a 5 pin
plastic connector directly onto the rotation alarm board located
in the electronics enclosure of the modular roller apparatus.
13.2 Testing disconnecting rotation alarm sensors
a. Disconnect magnetic reed switch cables by unplugging
the cable connector from the rotation alarm board.
b. Turn the roller apparatus to the "On" position.
c. The Rotation Alarm system should indicate a rotation
failure within 3 minutes and the LED indicators should
flash.
d. Reset the Rotation Alarm by first plugging in the
removed magnetic reed switch cable, then by turning
"Off" then "On" the roller apparatus power switch.
13.3 Testing the remote annunciator jack
Follow Section 13.1 above to set unit into Alarm mode.
See Figure I for annunciator jack pin locations.
a. Using a multimeter, set meter to ohms measurement and
connect to pins 1 and 3 of the remote annunciator jack.
BEFORE alarm condition, the pins should read INFI-
NITE ohms. AFTER alarm condition, pins should read
ZERO ohms.
b. Using a multimeter, set meter to read +I2VDC or greater
and connect positive lead to pin 2 and ground lead of pin
4. BEFORE alarm conditions, the pins should read
+12VDC steady. AFTER alarm conditions, pins should
read pulI2VDC / OVDC at approximately a
1 second rate.
SECTION 14 - USER INTERFACE
CONNECTIONS FOR ROTATION ALARM
SYSTEM
The remote annunciator jack allows a user to interface the
Rotation Alarm system to a plant security/process monitoring
system. A system that detects either a +12VDC signal or a dry
contact closure can be used. See Figure 1 for remote annuncia-
tor jack pinouts. Specifications are as follows:
a. Dry contact (pins 1 and 3):
0.5 Amp at 24VDC
b. +12VDC pulse signal approximately 1 second on/off:
0.25ma source
Model 4862 Cell Roller___________________________________Rotation Alarm System Testing / User Interface Connections
14-1
