4-15 Analog A Maximum Adjustment
Range:
Function:
100%
*
[0–600%] Calibrates the upper limit of the analog
output to match the signal measured on an
external current measuring device.
4-16 Analog A Minimum Adjustment
Range:
Function:
0%
*
[0–600%] Calibrates the lower limit of the analog output
to match the signal measured on an external
current measuring device.
8.5 Start/Stop Timers
CAUTION
UNINTENDED START
The autostart timer overrides any other form of control.
The motor may start without warning.
5-1 Auto-Start Type
Option: Function:
Selects whether the soft starter autostarts after a
specified delay or at a specific time of day.
Off*
The soft starter does not autostart.
Timer The soft starter does autostart after a delay from the
next stop, as specified in
parameter 5-2 Auto-start Time
.
Clock The soft starter autostarts at the time programmed in
parameter 5-2 Auto-start Time
.
5-2 Auto-Start Time
Range:
Function:
1 min
*
[00:01–24:00
(hrs:min)]
Sets the time for the soft starter to
autostart in 24-hour clock format.
5-3 Auto-Stop Type
Option: Function:
Selects whether the soft starter autostops after a
specified delay or at a specific time of day.
Off*
The soft starter does not autostop.
Time
The soft starter autostops after a delay from the next
start, as specified in
parameter 5-4 Auto-stop Time
.
Clock The soft starter autostops at the time programmed in
parameter 5-4 Auto-stop Time
.
5-4 Auto-Stop Time
Range:
Function:
1 min
*
[00:01–
24:00
(hrs:min)]
Sets the time for the soft starter to
autostop in 24-hour clock format.
NOTICE
Do not use this function with
remote 2-wire control. The soft
starter still accepts start and stop
commands from the remote inputs
or serial communication network. To
disable local or remote control, use
parameter 3-1 Local/Remote
. If
autostart is enabled and the user is
in the menu system, autostart
becomes active if the menu times
out (if no LCP activity is detected for
5 minutes).
8.6 Auto-Reset
The soft starter can be programmed to reset certain trips
automatically, which can help minimize operating
downtime. Trips are divided into 3 categories for auto-
reset, depending on the risk to the soft starter:
Group
A
Current imbalance
Phase loss
Power loss
Frequency
B
Undercurrent
Instantaneous overcurrent
Input A trip
C
Motor overload
Motor thermistor
Heat overtemperature
Table 8.1 Trip Categories for Auto-reset
Other trips cannot be automatically reset.
This function is ideal for remote installations using 2-wire
control in auto-on mode. If the 2-wire start signal is
present after an auto-reset, the soft starter restarts.
6-1 Auto-Reset Action
Option:
Function:
Selects which trips can be auto-reset.
Do not Auto-Reset*
Reset group A
Reset group A & B
Reset group A, B & C
Parameter Descriptions
VLT
®
Soft Starter MCD 500
66
Danfoss A/S © 05/2016 All rights reserved.
MG17K602
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