Danfoss vlt soft starter mcd 500 - Page 72

15-2 Adjustment Lock
Option: Function:
Selects whether the LCP allows parameters to be
changed via the programming menu.
Read &
write*
Allows altering parameter values in the
programming menu.
Read only Prevents users altering parameter values in the
programming menu. Parameter values can still be
viewed.
No access Prevents users adjusting parameters in the
programming menu unless an access code is
entered.
NOTICE
Changes to the adjustment lock setting take
eect only after the programming menu
has been closed.
15-3 Emergency Run
Option: Function:
CAUTION
EQUIPMENT DAMAGE
Continued use of emergency run is not
recommended. Emergency run may compromise
the soft starter life as all protections and trips
are disabled.
Using the soft starter in Emergency run mode
voids the product warranty.
Selects whether the soft starter allows emergency run
operation. In emergency run, the soft starter starts (if
not already running) and continues to operate until
emergency run ends, ignoring stop commands and
trips.
Emergency run is controlled using a programmable
input.
When emergency run is activated in internally bypassed
models which are not running, the soft starter attempts
a normal start while ignoring all trips. If a normal start
is not possible, a DOL start via the internal bypass
contactors is attempted. For non-bypassed models, an
external emergency run bypass contactor may be used.
15-4 Current Calibration
Range: Function:
100%* [85–
115%]
Motor current calibration calibrates the soft
starter's current monitoring circuits to match an
external current metering device.
Use the following formula to determine the
necessary adjustment:
Calibration( % ) = 
CurrentshownonMCD500display
Currentmeasuredbyexternaldevice
e . g . 102 %  = 
66A
65A
NOTICE
This adjustment aects all current-based
functions.
15-5 Main Contactor Time
Range: Function:
400 ms* [100–
2000 ms]
Sets the delay period between the soft
starter switching the main contactor
output (terminals 13, 14) and beginning
the prestart checks (before start) or
entering the not ready state (after a
stop). Set according to the specications
of the main contactor used.
15-6 Bypass Contactor Time
Range: Function:
150 ms* [100–
2000 ms]
Sets the soft starter to match the bypass
contactor closing/opening time. Set
according to the specications of the
bypass contactor used. If the time is too
short, the soft starter trips.
15-7 Motor Connection
Option: Function:
The soft starter automatically detects the format
of the connection to the motor.
Auto-Detect*
In-line
Inside Delta
15-8 Jog Torque
Range: Function:
50%* [20–100%]
NOTICE
Setting this parameter above 50% may
cause increased shaft vibration.
Sets the torque level for jog operation. See
chapter 5.5 Jog Operation for more details.
Parameter Descriptions
VLT
®
Soft Starter MCD 500
70 Danfoss A/S © 05/2016 All rights reserved. MG17K602
88