FC101 Programming Guide

ManualsBrandsSystemair ManualsElectrical accessories VentilationFC101-30kW/61A-IP20, 50/20m - frequency inverter 400V, no display, controller

Digital input

function

Description

[19] Freeze reference Freeze actual reference. The frozen

reference is now the point of enable/

condition for speed up and speed down

to be used. If speed up/speed down is

used, a speed change always follows ramp

2 (parameter 3-51 Ramp 2 Ramp Up Time

and parameter 3-52 Ramp 2 Ramp Down

Time) in the range

parameter 3-02 Minimum Reference -

parameter 3-03 Maximum Reference.

[20] Freeze output Freezes actual reference. The frozen

reference is now the point of enable/

condition for speed up and speed down

to be used. If speed up/speed down is

used, the speed change always follows

ramp 2.

[21] Speed up For digital control of the up/down speed

(motor potentiometer). Activate this

function by selecting either freeze

reference or freeze output. When speed

up is activated for less than 400 ms, the

resulting reference is increased by 0.1%. If

speed up is activated for more than 400

ms, the resulting reference ramps

according to ramp 1 in

parameter 3-41 Ramp 1 Ramp Up Time.

[22] Speed down Same as [21] Speed up, but reference

decreases.

[23] Set-up select bit

Selects 1 of the 2 set-ups. Set

parameter 0-10 Active Set-up to multi set-

up.

[32] Pulse Input Select pulse input when using a pulse

sequence as either reference or feedback.

Scaling is done in parameter group 5-5*

Pulse Input. Available only for terminal 29.

[34] Ramp bit 0 Select which ramp to use. Logic 0 selects

ramp 1, while logic 1 selects ramp 2.

[37] Fire mode A signal applied puts the frequency

converter into re mode and disregards all

other commands. See parameter group

24-0* Fire Mode.

Digital input

function

Description

[52] Run permissive The input terminal, for which the run

permissive is programmed, must be logic

1 before a start command can be

accepted. Run permissive has a logic AND

function related to the terminal, which is

programmed for [8] Start, [14] Jog, or [20]

Freeze Output. To start running the motor,

both conditions must be fullled. If run

permissive is programmed on multiple

terminals, run permissive only has to be

logic 1 on 1 of the terminals for the

function to be carried out. Run permissive

does not aect the digital output signal

for run request ([8] Start, [14] Jog, or [20]

Freeze Output) programmed in parameter

group 5-3* Digital Outputs, or parameter

group 5-4* Relays.

NOTICE

If no run permissive signal is applied

but either run, jog, or freeze

commands is activated, the status

line in the display shows either Run

Requested, Jog Requested, or Freeze

Requested.

[53] Hand Start A signal applied puts the frequency

converter into hand on mode as if [Hand

On] is pressed and a normal stop

command is overridden. If the signal is

disconnected, the motor stops. To make

any other start commands valid, assign

another digital input to Auto Start and

apply a signal. The [Hand On] and [Auto

On] keys have no impact. The [O] key

overrides Hand Start and Auto Start. Press

either [Hand On] or [Auto On] to

reactivate Hand Start and Auto Start. If

there is no signal on Hand Start or Auto

Start, the motor stops regardless of any

normal start command applied. If a signal

is applied to both Hand Start and Auto

Start, the function is Auto Start.

[54] Auto start A signal applied puts the frequency

converter into Auto mode as if [Auto On]

is pressed. See also [53] Hand Start.

[60] Counter A (up) Input for increment counting in the SLC

counter.

[61] Counter A (down) Input for decrement counting in the SLC

counter.

[62] Reset Counter A Input for reset of counter A.

[63] Counter B (up) Input for increment counting in the SLC

counter.

Parameters

VLT

HVAC Basic Drive FC 101