Rockwell-automation 2705 RediPanel Push Button Module Uživatelský manuál stáhnout pdf (Strana 70)

100

Chapter 5

Maintenance and Troubleshooting

5–4

A TEST button is located on the front of the module. When you press and

hold this button, the module enters test mode. Two tests are run.

1. Lamp / LED Test

All push button lamps and red/green LEDs turn OFF for one second, then

illuminate for two seconds. If you press the TEST button when the test is

done, the module continues with the Push Button Contact test.

2. Push Button Contact Test

Push buttons react as shown in Table 5A.

Selector switches react as shown in Table 5B.

During TEST mode, the status of the lamps are not updated, and any push

button presses are not transmitted to the PLC. The module exits test mode

two seconds after you release test button.

Table 5.A

Testing the Contacts of Illuminated Push Buttons

Push Button Lamp

Description

800A

NEMA 4

800EM/EP and 800T/H

N.O. Contacts N.C. Contacts

Non-actuated ON ON ON OFF

Actuated OFF OFF OFF ON

Contact Failure Flashing

– – –

Table 5.B

Testing the Contacts of Illuminated Selector Switches

Contact A

Lamp

Typical Example

800T-JR2KB7AXZ3

Open ON

Closed Off

To test 4 position selector switch inputs and other non-illuminated push

button and selector switch inputs, release the TEST button on the module and

examine the corresponding Input Image Table locations while operating.

Make sure the controller is in TEST mode before operating buttons.

Additional Test for 800A Push Button Modules

Hold the push-to-test button in while power is applied to module. If a push

button causes a fault, the lamp in that push button will flash.

Using the Push-to-Test Button

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