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© 2018 KOSTAL Solar Electric GmbH
Operation and operating the device
4.3 De-energising the inverter
When working in the terminal compartment
When working in the inverter’s terminal compartment,
this area must be de-energised.
It is imperative that these steps are carried out:
1. Turn the DC switch on the inverter to OFF. Fig. 11
2. If used, switch o power supply for the self-con-
sumption output.
Ch. 9.1
3. Switch o the AC line circuit breaker.
4. Secure the entire voltage supply against being
switched on again.
H
The inverter’s terminal compartment is now volt-
age-free (high voltage). The Smart Communication
Board (SCB) is still supplied with voltage by the PV
string and can display values in the inverter’s display.
The levels of voltage on the SCB are very low and
not dangerous at all. Work in the inverter’s terminal
compartment or on the AC line can now be carried
out.
DANGER
RISK OF DEATH DUE TO ELECTRI-
CAL SHOCK AND DISCHARGE!
De-energise device and secure
against being switched on again.
DANGER
RISK OF DEATH DUE TO ELECTRI-
CAL SHOCK AND DISCHARGE!
Further steps should be taken
when working on the DC feed
cables (PV or battery). These steps
can be found on the following
page.