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FCP manual

Code +030220391 – rel 1.2 25/03/08

Associated parameters

par. Spv Modb range def uom description

OUTV I37 137 0 to 100 R/W 1% reading/Override output

EOVR D15 15 0/1 0 1 Enable override output 0=disabled 1=enabled

Table 6.b.b

6.12 Phase control modes

By default control is based on short impulses (around 3ms). Alternatively, control can be enabled for long impulses (control is maintained until the end of the half

period).

The displacement of the phase control function can also be changed with reference to the zero-crossing of the mains voltage, so as to adapt it to the cos-fi of the fan.

The linearisation of the output RMS voltage can also be enabled, rather than use the traditional sinusoidal relationship between phase control and voltage.

Finally, the instant variation in the output can be limited so as to improve the behaviour of the fan, especially when starting from standstill.

Phase delay @ 100% output

oltage(RMS) outpu

100%

OUT

100%

ELIN on

ELIN off

Fig. 6.h

Associated parameters

par. Spv Modb range def uom description

DLPL I21 121 0 to 100 10 1% Phase displacement (100% -> 90°)

STEP I24 124 0 to 10 1 1sec Output ramp (minimum time for variation from 0% to 100%)

ELIN D9 9 0/1 1 1 Enable output linearisation 0=disabled 1=enabled

ELPL D10 10 0/1 0 1 Enable long impulse phase control 0=disabled 1=enabled

Table 6.b.c

6.13 Automatic adaptation to the mains frequency

At power-on the mains frequency is measured so as to adapt operation to 50Hz or 60Hz

The status of the mains frequency reading is accessible via serial line.

par. Spv Modb range def uom description

OKHZ D26 26 0/1 R 1 mains frequency reading status 0=not ok 1=ok

STHZ D27 27 0/1 R 1 mains frequency 0=50Hz 1=60Hz

Table 6.b.d

6.14 Alarm situations and alarm management

Alarm status is activated in the event of:

- activation of the thermal protector (or in any case, the opening of the contact connected to the digital input configured as the alarm input);

- fault on probes B1 or B2;

- error reading/writing the parameters saved in non-volatile memory (EEPROM).

The alarm status is signalled by the red LED, depending on the causes, in order of priority:

on steady parameter alarm

1 impulse probe alarm

2 impulses digital input open alarm

In the event of more than one alarm at the same time, the signal with the highest priority is shown.

Warning:

if digital input ID1 is set as normally open, the alarm is active when ID1 is closed.

The probe fault alarm is generated if the probe is disconnected or short-circuited. Only the probes enabled by parameter and/or dipswitch are managed (probe B1 is

enabled by default, while probe B2 can be enabled by dipswitch).

In alarm status, the controller output provides one of three possible voltage values, with reference to the mains voltage, which can be set by parameter: 0%; 50%;

100% (default).

Normal operation is restored automatically as soon as the alarm situation is resolved. In the event of alarms due to errors when reading/writing the parameters, the

parameters take the default values. The alarm is reset only when a correct parameter copy operation is performed using the key or the parameters are written from

the supervisor.

If the alarm persists, the EEPROM is faulty.

Dipswitch Function

OFF: external alarm (thermal protection activated) Dip2 Select digital input function

ON: set point selection (enable double set point)

OFF: single circuit (probe B1 only) Dip3 Enable two circuits

ON: two circuits (both probes B1 and B2)

Table 6.b.e

Associated parameters

par. Spv Modb range def uom description

ALMO I11 111 0 to 2 2 1 Output in alarm status

0=0%