Switch-Over Automatic, type UMAP NT35-R
Index: 03
Date modified: 28/03/2022
OI No.: BA SW 017-03 Umschaltautomatik Typ UMAP NT35-R EN.docx
Page 10 of 14
5
Maintenance, care, faults
5.1
Device maintenance
The “switch-over automatic” is a low-maintenance device.
Open and close the housing
DANGER DUE TO ELECTRICAL VOLTAGE!
This work may only be carried out by qualified electrical technicians! Before any
electrical work is carried out, the power supply must be switched off and secured
against being reactivated!
ESD SENSITIVE!
The electronic components in the devices are sensitive to electrostatic discharges. The
generally accepted safety precautions for ESD-sensitive devices must be observed
when handling the devices.
In particular, the following applies for work on electronic components:
Never plug in or remove connectors unless the power has been deactivated.
As the person handling the device, please discharge yourself electrostatically for at least 5 seconds prior
to directly touching the devices, e.g., by touching a grounded part of the system or by wearing an ESD
antistatic wrist strap connected to ground.
5.2
Trouble-shooting
Possible fault indications during normal operation:
LED
Message / fault
Function
Remedy
Container 1 lights up
red
Container 1 empty Solenoid valve is switched on,
switchover to Container 2;
Reserve indication on
Replace Container 1
Container 2 lights up
red
Container 2 empty Solenoid valve is switched on,
switchover to Container 1;
Reserve indication on
Replace Container 2
Container 1 and
Container 2 lights up
red
Both containers
empty
No switchover; collective fault on
Replace both containers
(at least one);
Control unit starts again
