Watlow Series 988LF Uživatelský manuál stáhnout pdf (Strana 44)

6.4 WATLOW Series 988LF Users Manual Factory Menus, Chapter 6

Test Outputs

This prompt tests each output. To run the test, scroll through the

Diagnostics Menu until [tout] is shown in the lower display. Use the Up-

arrow key > or Down-arrow key < to select an output [out1] or

[out2]. The LED for that output should light after a second or two indicat-

ing that the output has been successfully energized. Do not press the

mode key µ to activate the test; it starts automatically when anything

other than [`OFF] is selected.

If any of the LEDs fail to light contact the factory.

[tout] This prompt always appears.

Default

↓

[`OFF] [out1] [out2]

[tout] [tout] [tout]

Open Loop

Checks the control loop, consisting of the controller output, power

control, heater and sensor. With open loop enabled, the controller moni-

tors the output power level and checks for a change in the process input

value. If the output power is at maximum for a period of time equal to the

reset time and the process input has not changed by at least ±5°F, the

controller will switch to manual mode at 0% output power and [OPLP] will

be displayed in the lower display.

To clear this error, enter the Setup Menu and press the display key ∂. To

get back into auto mode, press the Auto/Man key å.

[OPLP] This prompt always appears.

Default

↓

[`OFF] [``On]

[OPLP] [OPLP]

[tout]

[OPLP]

Factory-Diagnostics

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Watlow Series 988LF Uživatelský manuál Strana 44