janitza Prophi 6T, Manual

Page: 11 / 24

Prophi
®
6T
11
- 10 -
11 DISCONNECTING TIME [ 20 ... 1000]ms
This refers to the time between disconnecting the capacitors to reduce the
momentary network capacitance..
Default setting: 1000 ms
Selection is performed via the
é
/
ê
keys. Continue with ENTER
12 DISCHARGE TIME [ 20 ...1000]ms
This is the time for which an individual output is blocked between connecting and
disconnecting. This blocking time has priority over connecting and disconnecting
times. It depends on the capacitor discharge rating and thus is specified by the
compensation network.
Default setting: 200 ms
Selection is performed via the
é
/
ê
keys. Continue with ENTER
13 ALARM TEMP [ 50...85]°C
The alarm temperature programmed here is the temperature at which the
capacitor stages are disconnected in steps. The controller’s alarm relay responds
after 60 seconds. At the same time the display shows the cause of the alarm
(over-temperature). If the temperature drops again, the required branches are
automatically re-connected in steps.
The selection is performed with the
é
/
ê
keys. Save and continue with ENTER.
27
Default: 20 sec.
28 HARMONICS (harmonic limit) [ 7 ]% (0.5...25.5)%
A limit for THD-V (in%) can be entered here. When this threshold is exceeded, a
message is given. THD-V is the ratio of the geometric sum of the uneven
harmonics to the fundamental.
DELAY-TIME OF ERROR-MESSAGES [ 0... 255] sec.
The delay time for error-messages in the display can be changed here.
BASIC SETTING: [ YES / NO ]
When the selection is made with YES and confirmed with ENTER, all parameters
are reset to the basic setting made by the PFC-system manufacturer.
(Optimal network values when the controller was supplied with a complete PFC-
system). If the controller is supplied from the works, this point corresponds to the
default setting.
CAUTION: All user settings are lost!
Programming is now completed. The controller has returned to point 1 of the
programming menu.
5.2 Programming lock
The Prophi-6T is equipped with a programming lock to ensure protection from
unauthorized or inadvertent changes to the system parameters. The lock can be activated
in expert mode. If the lock is active, all parameters can be checked but not changed.