Operating Manual
40
Arc fault
protection ZŁ-4A; (07.2019)
10.4. Voltage measurement input checking
For voltage measurement input checking measurement voltage phases should be dis-
connected one by one. In case of a proper detection of the voltage drop ”U< MODULE AC-
TIVE” LED on the central unit control panel will be illuminated. It will be also visible on page
3) ACTIVATION of the central unit control panel. Bay units will signal information on the volt-
age drop detection by displaying a respective message, namely
. After supplying the
measurement voltage the U< module will be deactivated immediately.
11.
Using of ZŁ-4A JP control panel
11.1. Information on software version
Immediately after power supply connecting all the LED's and all the segments of the dis-
play are illuminated. After a few seconds an actual software version number will be dis-
played. A full number is displayed in two stages (Fig. 18) because the display has only two
digits.
Fig. 18 Actual software version.
Next the bay unit will revert to ”ready” status and its network address is visible on the display
(under the condition that it has been configured).
Fig. 19 Message displayed for a bay unit without a network address.
In case when a bay unit does not have a configured network address “- -“ symbol will be dis-
played. Standard setting is number 01.
Fig. 20 Information displayed if a bay unit does have a configured network address.
Summary of Contents for ZL-4A
Page 24: ...Operating Manual 24 Arc fault protection ZŁ 4A 07 2019 Fig 5 ZŁ 4A JC dimensions ...
Page 25: ...Operating Manual Arc fault protection ZŁ 4A 07 2019 25 Fig 6 ZŁ 4A JP dimensions ...
Page 26: ...Operating Manual 26 Arc fault protection ZŁ 4A 07 2019 Fig 7 ZŁ 4A JW dimensions ...
Page 61: ...Operating Manual Arc fault protection ZŁ 4A 07 2019 61 Fig 36 Page 2 STATUS using ...