Sentrysafe SPD 5.5.5 Manuel d'utilisateur télécharger pdf (Page 54)

Sample Sequencer

Troubleshooting

TROUBLESHOOTING

Troubleshooting Guide

Symptom Possible Problem(s) Remedy

Display doesn't light Power

Board connection

Fuse on I/O board

1. Verify power supply outputs 6-9 VDC.

2. Verify polarity is connected correctly to I/O

board.

1. Verify I/O board is snugly connected into I/O

board.

2. Verify I/O board component-side is on right

side from rear view.

1. Remove F1 (3A) on the I/O board and test

for continuity. Replace if defective.

Incorrect ANALOG mA Analyzer signal

Polarity

1. Verify the input signal from analyzer is 0-20

mA.

2. Verify the analog signal polarity is correctly

connected to the I/O board terminals (+) and

(-) on J4.

Incorrect valve operates Wiring 1. Verify the interconnected cable (8 conductor)

is correctly connected from the I/O board

terminals and the valve relay board.

Valves don't operate Valve power

Fuse

1. Verify power was brought to the valve relay

board J1 terminals labeled (+) and (-).

Danger: Disconnect power before checking

this!

1. Check F1 fuse on the valve relay board.

Replace with 1A fuse if defective.

SENTRY Equipment Corp • P. O. Box 127 • Oconomowoc, WI 53066 • 262/567-7256 • FAX: 262/567-4523

Web: www.sentry-equip.com • e-mail: [email protected]

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Sentrysafe SPD 5.5.5 Manuel d'utilisateur Page 54