DriSteem Vapor-logic3 Instructions d'exploitation télécharger pdf (Page 58)

56

 No control voltage

present

 Heater fuses open

 Transformer

secondary circuit

breaker tripped

 Field wiring not

installed

 Field-supplied remote

fault indicator lamp is

burned out.

 Remote fault

VAPOR-LOGIC

3

relay is not switching.

 No power, or

incorrect voltage to

VAPOR-LOGIC

3

board

 Modular

communication cable

is disconnected.

 Open, shorted, or

incorrect wiring of

transmitter

 Open, shorted, or

incorrect wiring of

transmitter.

Operation

Operation:

Troubleshooting guide

Troubleshooting guide.

1

2

3

4

5

Green power indicator

light is off.

No remote fault

indication

No readable

information on

keypad/display

Humidity transmitter

fault

Dew point transmitter

fault

 Check for proper supply voltage.

 Check heater fuses for voltage present

at transformer.

 Check for wiring shorts; reset breaker.

 Provide field wiring to a remote fault

indicator from VAPOR-LOGIC

®

3

terminal block J22.

 Check if lamp by others is burned out;

replace if needed.

 Check relay continuity

(VAPOR-LOGIC

3

terminal J22) for

contact closure.

 Check main power supply.

 Connect modular cable.

 Check wiring terminals

(VAPOR-LOGIC

3

terminal J26) for

correct wiring and voltages.

 Check wiring terminals

(VAPOR-LOGIC

3

terminal J26) for

correct wiring and voltages.

Problem

number

Problem Possible cause Action

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