Ducati RS 485 Instrukcja Obsługi Pobierz pdf (Strona 12)

To set the appropriate operating mode for correcting the power

factor of generators, press the key: the word “ ” will appear. If,

on the contrary, you wish to enable the C.T. direction auto-

adjustment function

(in the case of traditional power factor correction of loads) press

the key: the word “ ” will appear to confirm the selection

This command reinstates all the default parameters and returns

the controller to the initial starting up condition; after this

operation, reset the controller by following the directions in

chapter 7 for (after

setting the parameter, the controller always starts the

procedure for acquiring banks, see chap. 7.3 - Page 63).

Press + to access the setup menu and press the key

repeatedly until the set logic (1:1:1, 1:2:2, 1:2:4) is displayed; to

reset the controller, keep pressed for 5 seconds.

The letters “ ” will be displayed in turn with the default setting

“”.

The parameter can be changed using the or key and

confirming with the key. The possible choices are:

= no reset will be carried out.

= the parameters will be reset; during this phase the

controller will switch off all the steps and the digits will

appear for a few seconds with all LEDs illuminated

The REGO controller features a device for signaling overvoltage

and power factor correction failures as well as alarms which are

activated when an overtemperature protection trips or in the event

of excessive harmonic distortion and voltage drops or mains dips.

When a protection trips, the LED will light up and the NC

contact will close to remotely signal the alarm status. With the

exception of the device for signaling power factor correction

failures and overvoltage, the protections will cause the capacitor

banks to be switched off.

This signal is activated when the system power factor remains

below the set value for more than two consecutive hours

(reentries of up to 1 minute are allowed) with all the capacitor

banks switched on. This signaling function is not active in the

manual mode. When a power factor correction failure is signaled:

– the initials “ ” will be displayed in turn with “ ” and the

last value measured (these digits will also be separated by )

Ex.

– the LED situated on the front panel of the controller

will light up.

– the alarm relay contact connected to the controller terminal

block will open.

After 30 minutes all these actions will be cleared and the controller

will automatically resume operation (auto-reset status ),

though the incident will continue to be signaled via the display,

which will show “ ” in turn with “ ” and the last value

measured.

To clear the display press .

OFF

12.9 TOTAL RESETTING OF SETUP PARAMETERS

POWERING UP FOR THE FIRST TIME

DATA

ALARM/RESET

CLr

DATA

yes

8.8.8.

13) SIGNALS AND ALARMS

ALARM

13.1 SIGNALING OF POWER FACTOR CORRECTION

FAILURE

A.L.A. C.O.S.

...

ALARM

A.r.

A.L.A. C.O.S.

ALARM/RESET

13.2 OVERVOLTAGE SIGNAL

A.L.A. U.F.F.

...

ALARM

UFF

A.r.

A.L.A. U.F.F.

ALARM/RESET

13.3 OVERTEMPERATURE PROTECTION

A.L.A. .C..

...

ALARM

rapid

disconnection

A.r.

A.L.A. .C..

ALARM/RESET

13.4 PROTECTION AGAINST EXCESSIVE HARMONIC

DISTORTION

A.L.A. t.h.d.

...

ALARM

t.h.d.

rapid

disconnection

This signal is activated when the controller measures a supply

voltage exceeding the maximum allowed by the transformer (230

+19%; 400 +19%) for longer than 30 seconds.

This protection is active even if no capacitor bank is currently

switched on. When this alarm is triggered:

– the initials “ ” will be displayed in turn with “ ” and the

last value measured (these digits will also be separated by )

Ex.

– the LED situated on the front panel of the controller

will light up.

– the alarm relay contact connected to the controller terminal

block will open.

– the number shown by the alarm counter will increase by

one.

After 30 minutes all these actions will be cleared and the

controller will automatically resume operation (auto-reset

status ), though the incident will continue to be signaled via

the display, which will show “ ” in turn with “ ” and

the last value measured. To clear the display press

This protection will trip if the temperature around the controller

exceeds 700C for at least 15 seconds.

When this alarm is triggered:

– the initials “ ” will be displayed in turn with “° ” and the

last temperature read (these digits will also be separated by ).

Ex.

– the LED situated on the front panel of the controller

will light up.

– the alarm relay contact connected to the controller terminal

block will open.

– the controller will activate the procedure for

of all steps and go into a standby status (in

this status the controller will not work).

After 30 minutes all these actions will be cleared and the

controller will automatically resume operation (auto-reset status

), though the incident will continue to be signaled via the

display, which will show “ ” in turn with “° ” and the last

value measured.

To clear the display press .

This protection is also active in the manual mode and even if no

capacitors are switched on.

This protection will trip when the rate of current harmonic

distortion may pose a hazard to the power factor correction

capacitors.

When this alarm is triggered:

– the initials “ ” will be displayed in turn with “ ” and the

measured Crest Factor (these digits will also be separated by ).

Ex.

– the LED situated on the front panel of the controller

will light up.

– the alarm relay contact connected to the controller terminal

block will open.

– the number shown by the alarm counter will increase by

one.

– the controller will activate the procedure for

of all steps and go into a standby status (in

this status the controller will not work).

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