3.6 Main Menu - Digital In/Out - Group 5
3.6.1 5-0* Digital I/O Mode
Parameters for configuring the input and output using
NPN and PNP.
NOTICE
These parameters cannot be adjusted
while the motor is running.
5-00 Digital Input Mode
Option:
Function:
Set NPN or PNP mode for digital inputs 18,19 and 27.
Digital Input Mode
[0]
*
PNP Action on positive directional pulses (0). PNP systems
are pulled down to GND.
[1]
NPN Action on negative directional pulses (1). NPN
systems are pulled up to +24 V, internally in the
frequency converter.
5-03 Digital Input 29 Mode
Option:
Function:
[0]
*
PNP
[1]
NPN
3.6.2 5-1* Digital Inputs
Parameters for configuring the input functions for the
input terminals.
The digital inputs are used for selecting various functions
in the frequency converter. All digital inputs can be set to
the following functions:
Digital input
function
Description
[0] No operation
No reaction to signals transmitted to
terminal.
[1] Reset
Resets frequency converter after a TRIP/
ALARM. Trip locked alarms can be reset.
[2] Coast inverse
Leaves motor in free mode. Logic ‘0’
⇒
coasting stop.
[3] Coast and reset
inverse
Reset and coasting stop inverted input
(NC). Leaves motor in free mode and
resets the frequency converter. 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
. After
ramping down, shaft is in free mode.
Digital input
function
Description
[5] DC-brake inverse Inverted input for DC braking (NC). Stops
motor by energising it with DC current for
a certain time period, see
. Function is only active when
value in
is different
from 0. This selection is not possible
when
1-10 Motor Construction
is set to
[1]
PM non salient SPM
.
[6] Stop inverse
Stop inverted function. Generates stop
function when selected terminal goes
from logical level “1” to “0” (not latched).
Stop is performed according to selected
ramp time.
[7] External Interlock Same function as Coasting stop, inverse,
but External Interlock generates the alarm
message ’external fault’ on the display
when the terminal which is programmed
for Coast Inverse is logic ‘0’. The alarm
message is also active via digital outputs
and relay outputs, if programmed for
External Interlock. The alarm can be reset
using a digital input, fieldbus, or the
[Reset] key if the cause for the External
Interlock has been removed.
*[8] Start
Select start for a start/stop command.
Logic ‘1’ = start, logic ‘0’ = stop. (Default
Digital input 18)
[9] Latched start
Motor starts, if a pulse is applied for min.
2 ms. Motor stops when Stop inverse is
activated.
[10] Reversing
Change direction of motor shaft rotation.
Reversing signal only changes direction of
rotation; it does not activate start
function. Select
[2] Both directions
in
. 0 = normal, 1
= reversing.
[11] Start reversing
Use for start/stop and for reversing at the
same time. Signals on
[8] start
are not
allowed at the same time. 0 = stop, 1 =
start reversing.
[14] Jog
Used for activating jog speed. See
. (Default Digital input
29)
[16] Preset ref bit 0
Enables a selection between one of the 8
preset references according to
.
[17] Preset ref bit 1
Enables a selection between one of the 8
preset references according to
.
[18] Preset ref bit 2
Enables a selection between one of the 8
preset references according to
.
Parameters
VLT
®
HVAC Basic Drive FC 101 Programming Guide
38
MG18B302 - Rev. 2013-09-02
3
3
Summary of Contents for VLT HVAC Basic Drive FC 101
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