Proximity controls – Dwyer DSS User Manual

Page 4

TIME DELAY SETTING
The Series DSS motion switch has a start-up delay that is adjustable up
to 45 seconds. This setting should be set, depending on the application
and the length of time it takes for the conveyor to reach its normal oper-
ating RPM. This time delay takes effect upon power-up of the Series
DSS after shutdown. AC power to the Series DSS must be interrupted for
timer to be reset. This delay only effects start-up, avoiding nuisance
start-up alarms.

TROUBLESHOOTING PROBLEMS & SOLUTIONS

PROBLEM: SOLUTION:
No pulses from yellow LED: Check power supply.
Make sure input shaft is turning.

PROBLEM: SOLUTION:
Relay is not energized or de-energized: Check power supply. When
expected. (I.e. green LED not on: Make sure input shaft is turning. Or off
when expected.) Check for proper set point.
Check for proper speed setting.
(LOW, MEDIUM or HIGH)

PROBLEM: SOLUTION:
Alarm sounds when equipment is started: Check start-up delay setting.
Check for proper connections between alarm and relay. AC power must
be interrupted for alarm to reset.

PROBLEM: SOLUTION:
Alarm does not go off when expected: Check power supply. Check for
proper connections between alarm and relay.

PROBLEM: SOLUTION:
Equipment is not shut off when expected: Check power supply. Check for
proper connections between control circuit and relay.

MAINTENANCE
Upon final installation of the Series DSS Direct-Contact Speed Switch,
no routine maintenance is required. A periodic check of the system cali-
bration is recommended. The Series DSS is not field serviceable and
should be returned if repair is needed (field repair should not be attempt-
ed and may void warranty). Be sure to include a brief description of the
problem plus any relevant application notes. Contact customer service to
receive a return goods authorization number before shipping.

Printed in U.S.A. 4/14

FR# R6-443493-00 Rev. 1

PROXIMITY CONTROLS

Phone: 219/879-8000

www.dwyer-inst.com

A DIVISION OF DWYER INSTRUMENTS, INC.

Fax: 219/872-9057

e-mail: [email protected]

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.