HX7+ ASD Installation and Operation Manual
125
PWM Carrier Frequency
Program
Special Control
This parameter sets the frequency of the pulse width modulation signal applied
to the motor.
Note:
The carrier frequency must be 2.2 kHz or above except while
operating in the
Constant Torque
,
Variable Torque
, or the
5-
Point Setting
modes.
Note:
The maximum
Carrier Frequency
setting allowed is 5.0 kHz for
the following ASDs:
460-volt
150 HP – 350 HP.
The maximum
Carrier Frequency
setting allowed for all other
ASDs is 15 kHz.
Setting the Carrier Frequency above the Derate Threshold frequency for a given
ASD will reduce the capability of the ASD.
Contact
Direct Access Number — F300
Parameter Type —
Numerical
Factory Default —
2.200
Changeable During Run —
No
Minimum — 0.500
Maximum — (ASD dependent)
Units — kHz
Example
Break/Make ST
Program
Protection
Retry/Restart
This parameter
Enables/Disables
the ability of the drive to start into a spinning
motor when the
ST
–
CC
connection opens momentarily and is then closed
(Break/Make ST) or after a power interruption (momentary power failure). This
parameter also
Enables/Disables
Settings:
0 — Enabled (box checked)
1 — Disabled
Direct Access Number — F301
Parameter Type —
Check Box
Factory Default —
Disabled
Changeable During Run —
Yes
Ridethrough Mode
Program
Protection
Undervoltage/Ridethrough
This parameter determines the motor-control response of the drive in the event
of a momentary power outage.
Settings:
0 — Off
1 — Ridethrough
2 — Stop
Direct Access Number — F302
Parameter Type —
Selection List
Factory Default —
Off
Changeable During Run —
Yes
Summary of Contents for HX7+ ASD
Page 2: ...DN 67017 001 February 2014 HX7 ASD Installation Operation Manual ...
Page 227: ...218 HX7 ASD Installation and Operation Manual Figure 35 200 kVA Sine Wave NEMA 1 Enclosure ...
Page 231: ...222 HX7 ASD Installation and Operation Manual Figure 39 200 kVA Sine Wave NEMA 3R Enclosure ...
Page 235: ...226 HX7 ASD Installation and Operation Manual Figure 43 66 163 kVA 18 Pulse Enclosure ...
Page 236: ...HX7 ASD Installation and Operation Manual 227 Figure 44 200 kVA 18 Pulse Enclosure ...
Page 237: ...228 HX7 ASD Installation and Operation Manual Figure 45 260 518 kVA 18 Pulse Enclosure ...
Page 238: ...HX7 ASD Installation and Operation Manual 229 Figure 46 518 700 kVA 18 Pulse Enclosure ...