Siemens Sm@rt DAS Manual del usuario - Página 22

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Chapter 5

Troubleshooting

DAS is not turning on

Verify Switch to Controller Wiring

 Locate the Sm@rt DAS controller in the gear. When the

switch is closed, one of the green LED highlighted in red

will turn on indicating the 24V signal gets to the PLC. If

the light does not come on, check wiring from PLC to

switch and from switch to 24V power supply. Ensure

wires were connected between any shipping splits.

Verify Controller to Indicator Light Wiring

 The corresponding green LED highlighted in blue on the

controller indicates the breaker is in maintenance mode.

If this light is green and the blue light does not come on,

check output wires from the controller to the light and

from the light to the power supply. Ensure wires were

connected between any shipping splits.

Verify Communication Modules have power

 Check each communication module and verify each has

green LEDs on indicating power as per commissioning

requirements. If not, verify power connection wiring.

Power LEDs

Verify device is communicating

 Each device will have a MODBUS communication light –

verify that it is green as well when the switch is closed.

Check wiring to ensure all connections are made,

especially across shipping splits.

Verify VL settings

 Ensure VL breaker nominal settings are at or higher than

maintenance mode instantaneous settings, and that

instantaneous settings are turned on.

Additional support

 Review the FAQ document for additional support topics.

It is available through the Siemens Download Center.

 Support, service, parts and repairs are available seven

days a week, 24 hours a day, 365 days a year. Call

Siemens Industry Customer Care Center (ICCC) at

800-333-7421.

Input LEDs

Output LEDs