ABB RSD Series, Руководство по эксплуатации, Страница: 24 / 32

Trouble shooting
24 RSD10 ... 200 (Contrac) 42/68-285-EN
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7 Trouble shooting
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This chapter only covers failures caused by the hardware. Use the online-help of the
configuration software for an extended troubleshooting.
failure pattern possible reason troubleshooting
actuator can not move the
valve. failure either at the
actuator or at the final
control element (e.g.,
stuffing box tightened too
much). detach actuator from valve.
if the actuator moves the valve is
the possible cause.
if the actuator does not run, the
actuator is the possible cause.
incorrect electronic unit or
incorrect data set. Compare the nameplate data on
the actuator and electronic unit.
Incorrectly configured
electronic unit. Check/update the settings for the
parametrization software.
no communication with
the control system. Check wiring.
incorrect wiring between
actuator and electronic
unit. Check wiring.
motor / brake faulty Check the winding resistance of
the motor and brakes.
Check the brake lock.
Binary inputs on the
electronic unit are not
wired.
Make connection.
actuator does not react.
Brake does not release
(no mechanical "click"). Check the brake air gap (approx.
0.25 mm (0.010 inch)) and
electrical connection to the brake.
check winding resistance of the
brake coil.
actuator does not run in AUT
mode, although “AUT” is
selected in the user interface.
Binary input 1 (BE 1) not
wired. Make connection.
Check the software settings for
the binary inputs.
LEDs in the commissioning
and service panel (CSP)
flash synchronously. Actuator is not adjusted
properly. Adjust actuator
LEDs flash alternately. Electronic unit / drive
failure.
failure when approaching the
end position. Actuator in limit range of
positioning sensor.
drive the actuator beyond the
adjusted end position (either
manually or using the push buttons
on the CSP); <:hr>(if necessary
disconnect from valve or damper.)
drive the actuator back into the
operating range and connect it to
the valve / damper
re-adjust the operating range.
,
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7.1 Electrical test values
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MCS 071 BA MCS 080 BA MC 090 BA MC 100 BA MC 112 BA
Winding resistance ± 5% at 20 °C (68 °F)
Motor 21 Ω 8 Ω 3.7 Ω 3.7 Ω 1.4 Ω
Brake 2180 Ω 1730 Ω 1290 Ω 1080 Ω 1020 Ω
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