Danfoss VLT AutomationDrive FC 302 Instruction Manual Download

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Digital input function

Select

Terminal

External interlock

[51]

DigiPot increase

[55]

All

DigiPot decrease

[56]

All

DigiPot clear

[57]

All

Digipot hoist

[58]

All

Counter A (up)

[60]

29, 33

Counter A (down)

[61]

29, 33

Reset Counter A

[62]

All

Counter B (up)

[63]

29, 33

Counter B (down)

[64]

29, 33

Reset counter B

[65]

All

Mech. brake feedb.

[70]

All

Mech. brake feedb. inv.

[71]

All

PID error inv.

[72]

All

PID reset I-part

[73]

All

PID enable

[74]

All

PTC card 1

[80]

All

Profidrive OFF2

[91]

Profidrive OFF3

[92]

Start edge triggered

[98]

Safe option reset

[100]

Table 6.5 Digital Input Functions

FC 300 standard terminals are 18, 19, 27, 29, 32 and 33.
MCB 101 terminals are X30/2, X30/3 and X30/4.
Terminal 29 functions as an output only in FC 302.

Functions dedicated to only one digital input are stated in
the associated parameter.

All digital inputs can be programmed to these functions:

[0]

No
operation

No reaction to signals transmitted to the
terminal.

[1]

Reset

Resets adjustable frequency drive after a TRIP/
ALARM. Not all alarms can be reset.

[2]

Coast
inverse

(Default digital input 27): Coasting stop,
inverted input (NC). The adjustable frequency
drive leaves the motor in free mode. Logic ‘0’

⇒

coasting stop.

[3]

Coast and
reset
inverse

Reset and coasting stop Inverted input (NC).
Leaves the motor in free mode and resets the
adjustable frequency drive. Logic ‘0’

⇒

coasting

stop and reset.

[4]

Quick stop
inverse

Inverted input (NC). Generates a stop in
accordance with the quick-stop ramp time set
in

3-81 Quick Stop Ramp Time

. When motor

stops, the shaft is in free mode. Logic ‘0’

⇒

Quick stop.

[5]

DC brake
inverse

Inverted input for DC braking (NC). Stops
motor by energizing it with a DC current for a

certain time period. See

2-01 DC Brake Current

2-03 DC Brake Cut-in Speed [RPM]

. The

function is only active when the value in

2-02 DC Braking Time

is different from 0.

Logic ’0’

⇒

DC braking.

[6]

Stop
inverse

Stop inverted function. Generates a stop
function when the selected terminal goes from
logical level ‘1’ to ‘0’. The stop is performed
according to the selected ramp time
(

parameter 3-42 Ramp 1 Ramp-down Time

3-52 Ramp 2 Ramp-down Time

3-62 Ramp 3

Ramp-down Time

3-72 Ramp 4 Ramp-down

Time

NOTICE!

When the adjustable frequency drive is
at the torque limit and has received a
stop command, it does not always stop
by itself. To ensure that the adjustable
frequency drive stops, configure a
digital output to

[27] Torque limit & stop

and connect this digital output to a
digital input that is configured as coast.

[8]

Start

(Default digital input 18): Select start for a
start/stop command. Logic ‘1’ = start, logic ‘0’
= stop.

[9]

Latched
start

The motor starts if a pulse is applied for min. 2
ms. The motor stops when stop inverse is
activated or a reset command (via DI) is given.

[10] Reversing

(Default digital input 19). Change the direction
of motor shaft rotation. Select logic ‘1’ to
reverse. The reversing signal only changes the
direction of rotation. It does not activate the
start function. Select both directions in

4-10 Motor Speed Direction

. The function is not

active in process closed-loop.

[11] Start

reversing

Used for start/stop and for reversing on the
same wire. Signals on start are not allowed at
the same time.

[12] Enable start

forward

Disengages the counter-clockwise movement
and allows for the clockwise direction.

[13] Enable start

reverse

Disengages the clockwise movement and
allows for the counter-clockwise direction.