Start Up Procedure - Danfoss VLT Option Panel Instruction Manual

Start Up Procedure

In the following procedures, changing the equipment
between drive mode and bypass mode is required.
Changing modes is different for the ECB and EMB.
The ECB uses pushbuttons on the drive keypad
while the EMB uses switches on the front of the
panel. Be familiar with the operation of these
devices prior to start up.
WARNING
!
E H !
QUIPMENT AZARD
O
PTION PANELS CONTAIN DANGEROUS VOLTAGES WHEN CONNECTED
. I
TO LINE VOLTAGE NSTALLATION
SHOULD BE PERFORMED ONLY BY QUALIFIED PERSONNEL
TO PERFORM INSTALLATION
QUALIFIED PERSONNEL ONLY COULD RESULT IN DEATH OR SERIOUS
.
INJURY
1. Perform pre-start up procedure.
2. Ensure that all operator devices are in
OFF position. Main and drive disconnect
switches on front of electromechanical
bypass panel must be in OFF position.
Panel door(s) closed.
3. Keep main disconnect switch in OFF
position and apply voltage to option panel.
DO NOT operate drive or bypass at this
time.
4. Confirm input line voltage is balanced
within 3%. If not, correct input voltage
imbalance before proceeding. Repeat
procedure after voltage correction, if
applicable.
24
, -
START UP AND MAINTENANCE
. F
AILURE
, -
START UP AND MAINTENANCE BY
CAUTION
!
M S !
OTOR TART
E ,
NSURE THAT MOTOR SYSTEM
. F
READY FOR START AILURE TO ENSURE MOTOR
ATTACHED EQUIPMENT IS READY FOR START COULD RESULT IN
PERSONAL INJURY OR EQUIPMENT DAMAGE
5. To apply power, turn main disconnect (and
drive disconnect, when applicable) to ON
position. If a bypass is connected, place
bypass in drive mode.
6. Enter drive programming data per
instructions in drive instruction manual.
In steps 7 through 11, for a bypass with a contactor
motor selection (CMS) option, put the motor
selector switch in motor 1 position. Repeat the
procedure for motor 2 with the switch position in
motor 2. For dual motor applications, check both
motors at same time.
7. Check motor rotation direction in drive
control as follows.
a. Put panel in drive mode.
b. Hand start drive at minimum speed
(see drive instruction manual for
details).
c. Confirm directional rotation.
d. If incorrect, stop drive, remove power,
and lock out.
e. Reverse connection of any 2 of 3
motor leads at terminal. Do not change
incoming power leads.
f. Remove lockout and apply power.
g. Confirm directional rotation.
,
AND ANY ATTACHED EQUIPMENT IS
, ,
SYSTEM AND ANY
.