Danfoss VLT FC 100, Руководство по эксплуатации, Страница: 99 / 193

1-28 Motor Rotation Check
Option: Function:
Following installation and connection of the motor, this function allows the correct motor rotation
direction to be verified. Enabling this function overrides any bus commands or digital inputs, ex-
cept External Interlock and Safe Stop (if included).
[0] * Off Motor Rotation Check is not active.
[1] Enabled Motor Rotation Check is enabled. Once enabled, Display shows:
“Note! Motor may run in wrong direction”.
Pressing [OK], [Back] or [Cancel] will dismiss the message and display
a new message: “Press [Hand on] to start the motor. Press [Cancel] to
abort”. Pressing [Hand on] starts the motor at 5 Hz in forward direction
and the display shows: “Motor is running. Check if motor rotation direc-
tion is correct. Press [Off] to stop the motor”. Pressing [Off] stops the
motor and resets par. 1-28
Motor Rotation Check . If motor rotation di-
rection is incorrect, two motor phase cables should be interchanged.
Mains power must be removed before disconnecting
motor phase cables.
3-41 Ramp 1 Ramp Up Time
Range: Function:
Size rela-
ted* [ 1.00 - 3600.00 s] Enter the ramp-up time, i.e. the acceleration time from 0 RPM to par. 1-25 Motor Nominal Speed .
Choose a ramp-up time such that the output current does not exceed the current limit in
par. 4-18
Current Limit during ramping. See ramp-down time in par. 3-42 Ramp 1 Ramp Down
Time .
par .3 − 41 =
tacc
×
nnorm par
.1 − 25
ref rpm
s
3-42 Ramp 1 Ramp Down Time
Range: Function:
Size rela-
ted* [ 1.00 - 3600.00 s] Enter the ramp-down time, i.e. the deceleration time from par. 1-25
Motor Nominal Speed
to 0
RPM. Choose a ramp-down time such that no over-voltage arises in the inverter due to regenera-
tive operation of the motor, and such that the generated current does not exceed the current lim-
it set in par. 4-18
Current Limit
. See ramp-up time in par. 3-41
Ramp 1 Ramp Up Time
.
par .3 − 42 =
tdec × nnorm
par
.1 − 25
ref rpm
s
4-14 Motor Speed High Limit [Hz]
Range: Function:
Size rela-
ted* [ par. 4-12 - par. 4-19 Hz] Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond
to the manufacturer’s recommended maximum of the motor shaft. The Motor Speed High Limit
must exceed the in par. 4-12
Motor Speed Low Limit [Hz] . Only par. 4-13 Motor Speed High Limit
[RPM] or par. 4-14 Motor Speed High Limit [Hz] will be displayed depending on other parameters
in the Main Menu and depending on default settings dependant on global location.
NB!
Max. output frequency cannot exceed 10% of the in-
verter switching frequency (par. 14-01
Switching Fre-
quency
).
4-12 Motor Speed Low Limit [Hz]
Range: Function:
Size rela-
ted* [ 0 - par. 4-14 Hz] Enter the minimum limit for motor speed. The Motor Speed Low Limit can be set to correspond to
the minimum output frequency of the motor shaft. The Speed Low Limit must not exceed the set-
ting in par. 4-14
Motor Speed High Limit [Hz]
.
6 How to Programme
VLT HVAC Drive High Power Operating In-
structions
98
MG.11.F3.02 - VLT ® is a registered Danfoss trademark
6