Watlow Series 935A Bedienungsanleitung PDF herunterladen (Seite 20)

18 Watlow Series 935A User’s Manual

The Series 935A offers three different security, or “lockout,” options. Set up one or all three lockout op-

tions in the Configuration Menu.

∫

• Front Panel Lock [`FPL] uses a control output as an input for an external hardware switch; it

requires wiring, see p. 23. Choose Front Panel Lock [`FPL] as an exclusive Output 1 choice.

Output 2 offers heat, cool, or alarm.

• Choose Set Point Lock [SLOC] as the simplest lockout option. It locks the Primary Set Point

from change, but not from view.

• Choose the Security Tag [`tAG] as a means of masking the Series 935A software menus from

view. By selecting all or part of the four-digit binary acronym, [PCOA] (Proportional / Configuration

/ Operation / Auto-tune), you can choose to mask those items from view, and therefore from

change. For example: In the Configuration Menu [`tAG] set-up, if you can see the P, the opera-

tor cannot see the PID menu.

• Exceptions to [PCOA] [`tAG] are:

“C” does not lock out [`tAG].

“O” does not lock out [CnFG].

∫

WARNING: When Output 1 is a Front Panel Lock [`OT1] = [`FPL] , the output is energized!

Do not connect a power switching device to Output 1; injury or death or damage to

equipment or property could result.

Configuration Menu

[``In]

Input Type

[`C_F]

Celsius/Fahrenheit

[``rL]

Input Range Low

[``rh]

Input Range High

[`Ot1]

✓

Output 1 Function

[`Ot2]

Output 2 Function

[dISP]

Display Default

[ALty]

Alarm Type

[AhYS]

Alarm Hysteresis

[`LAt]

Alarm Latch

[`SIL]

Alarm Silencing

[FAIL]

Failure Mode

[tIM]

Timer Function

[Strt]

Start Timer

[`rdY]

Timer Ready Band

[``St]

Signal Time

[SLOC]

✓

Set Point Lockout

[`tAG]

✓

Lockout Tag

Using Lockout Functions

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 67 68

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