Danfoss vlt soft starter mcd 500 - Inputs

2-12 Motor Temperature Check
Option: Function:
Selects whether the soft starter veries that the
motor has sucient thermal capacity for a
successful start. The soft starter compares the
calculated motor temperature with the
temperature rise from the last motor start. The soft
starter only operates if the motor is cool enough
to start successfully.
Do not
check*
Check
8.3 Inputs
3-1 Local/Remote
Option: Function:
Selects when the [Auto On] and [Hand On]
can be used to switch to hand-on mode or
auto-on mode.
Lcl/rmt
anytime*
Change between local and remote control at
any time.
Local control
only
All remote inputs are disabled.
Remote control
only
[Hand On] and [Auto On] are disabled.
3-2 Comms in Remote
Option: Function:
Selects whether the soft starter accepts start
and stop commands from the serial communi-
cation network when in Remote mode.
Commands that are always enabled:
•
Force comms trip
•
Local/remote control
•
Test start
•
Reset
Disable ctrl in
RMT
Enable ctrl in
RMT*
3-3 Input A Function
Option: Function:
Selects the function of input A.
Motor set
select*
The soft starter can be congured with 2
separate sets of motor data. The primary motor
data is programmed using parameters 1-1 to 1-16.
The secondary motor data is programmed using
parameters 7-1 to 7-16.
To use the secondary motor data, set this
parameter to Motor Set Select and close terminals
11, 16 before giving a start command. The soft
starter checks which motor data to use at a start
3-3 Input A Function
Option: Function:
and uses that motor data for the entire start/stop
cycle.
Input trip
(N/O)
Input A can be used to trip the soft starter. When
this parameter is set to Input Trip (N/O), a closed
circuit across terminals 11, 16 trips the soft
starter (Parameters 3-5 to 3-7).
Input trip
(N/C)
When this parameter is set to Input Trip (N/C), an
open circuit across terminals 11, 16 trips the soft
starter (parameters 3-5 to 3-7).
Local/remote
select
Input A can be used to select between local and
remote control, instead of using the LCP keys.
When the input is open, the soft starter is in
hand-on mode and can be controlled via the LCP.
When the input is closed, the soft starter is in
remote mode. The [Hand On] and [Auto On] keys
are disabled, and the soft starter ignores any
local/remote select command from the serial
communications network.
To use Input A to select between local and
remote control, set parameter 3-1 Local/Remote to
LCL/RMT Anytime.
Emergency
run
In emergency run, the soft starter continues to
run until stopped, ignoring all trips and warnings
(see parameter 15-3 Emergency Run for details).
Closing the circuit across terminals 11, 16
activates emergency run.
Opening the circuit ends emergency run and the
soft starter stops the motor.
Starter
disable
The soft starter can be disabled via the control
inputs. An open circuit across terminals 11, 16
disables the soft starter. The soft starter does not
respond to start commands. If running, the soft
starter allows the motor to coast to stop,
ignoring the soft stop mode set in parameter
1-10 Stop Mode.
When the circuit across terminals 11, 16 is
opened, the soft starter allows the motor to
coast to stop.
Jog forward Activates jog operation in a forward direction
(operates only in Remote mode).
Jog reverse Activates jog operation in reverse direction
(operates only in Remote mode).
3-4 Input A Name
Option: Function:
Selects a message for the LCP to show when
input A is active.
Input trip*
Low pressure
High pressure
Pump fault
Low level
High level
No ow
Parameter Descriptions Operating Guide
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