3-4 Input A Name
Option:
Function:
Starter disable
Controller
PLC
Vibration alarm
3-5 Input A Trip
Option:
Function:
Selects when an input trip can occur.
Always active* A trip can occur at any time when the soft
starter is receiving power.
Operating only A trip can occur while the soft starter is
running, stopping, or starting.
Run only
A trip can only occur while the soft starter is
running.
3-6 Input A Trip Delay
Range:
Function:
0 s
*
[0:00–4:00 (min:s)] Sets delay between the input
activating and soft starter tripping.
3-7 Input A Initial Delay
Range:
Function:
0 s
*
[00:00–
30:00 (min:s)]
Sets a delay before an input trip can occur.
The initial delay is counted from the time a
start signal is received. The state of the input
is ignored until the initial delay has elapsed.
3-8 Remote Reset Logic
Option:
Function:
Selects whether the remote reset input of the
soft starter (terminals 25, 18) is normally
open or normally closed.
Normally closed*
Normally open
8.4 Outputs
4-1 Relay A Function
Option:
Function:
Selects the function of relay A (normally open).
Off
Relay A is not used
Main
contactor*
The relay closes when the soft starter receives
a start command and remains closed as long
as the motor receives voltage.
Run
The relay closes when the starter changes to
run state.
Trip
The relay closes when the starter trips.
Warning
The relay closes when the starter issues a
warning.
Low current
flag
The relay closes when the low current flag
activates (
parameter 4-10 Low Current Flag
).
High current
flag
The relay closes when the high current flag
activates (
parameter 4-11 High Current Flag
).
4-1 Relay A Function
Option:
Function:
Motor temp
flag
The relay closes when the motor temperature
flag activates (
parameter 4-12 Motor
Temperature Flag
).
8.4.1 Relay A Delays
The soft starter can be configured to wait before opening
or closing relay A.
4-2 Relay A On Delay
Range:
Function:
0 s
*
[0:00–5:00 (min:s)]
Sets the delay for closing relay A.
4-3 Relay A Off Delay
Range:
Function:
0 s
*
[0:00–5:00 (min:s)]
Sets the delay for reopening relay A.
8.4.2 Relays B and C
Parameters 4-4 to 4-9
configure the operation of relays B
and C in the same way as
parameters 4-1 to 4-3
configure
relay A. See
parameter 4-2 Relay A On Delay
and
parameter
4-3 Relay A Off Delay
for details.
•
Relay B is a changeover relay.
•
Relay C is normally open.
4-4 Relay B Function
Option:
Function:
Selects the function of relay B (changeover).
Off
Relay B is not used.
Main
contactor
The relay closes when the soft starter receives a
start command and remains closed as long as
the motor is receiving voltage.
Run*
The relay closes when the soft starter changes
to run state.
Trip
The relay closes when the soft starter trips.
Warning
The relay closes when the soft starter issues a
warning.
Low current
flag
The relay closes when the low current flag
activates (
parameter 4-10 Low Current Flag
).
High current
flag
The relay closes when the high current flag
activates (
parameter 4-11 High Current Flag
).
Motor temp
flag
The relay closes when the motor temperature
flag activates (
parameter 4-12 Motor Temperature
Flag
).
4-5 Relay B On Delay
Range:
Function:
0 s
*
[0:00–5:00 (min:s)]
Sets the delay for closing relay B.
Parameter Descriptions
VLT
®
Soft Starter MCD 500
64
Danfoss A/S © 05/2016 All rights reserved.
MG17K602
8
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