Control Techniques Unidrive LV Series User Manual

Unidrive LV model sizes 1 to 3 Installation Guide
Issue code: uliu1
C-6 Data
Frequencies and speed
PWM switching frequency
Unidrive LV and Unidrive VTC LV: 3kHz nominal
(selectable up to 12kHz)
Unidrive LFT LV: 9kHz nominal (selectable from
3kHz to 12kHz)
Maximum output frequency (open-loop): 2000Hz
Maximum speed (closed-loop): 30 000
RPM
Speed regulation:
(open-loop): 1 ~ 2%
(closed-loop): 0.01%
Speed control range:
(open-loop): >50:1
(closed-loop): >1000:1
Starts per hour
By electronic control: unlimited
By interrupting the
AC supply:
model sizes 1 and 2: ≤20
model sizes 3 and 4: ≤10
Accuracy and resolution
The following data applies to the Drive only; it does
not include the performance of the source of the
control signals.
Open-loop frequency resolution...
Preset frequency reference: 0.1Hz
Precision frequency reference: 0.001Hz
Open-loop frequency accuracy...
Preset frequency reference: 0.03Hz or 0.01% of
the reference, whichever is the larger value
Precision frequency reference: 0.0001Hz or
0.01% of the reference, whichever is the larger
value
Closed-loop speed resolution
Unidrive LV and Unidrive LFT LV only...
Preset speed reference: 1
RPM
Precision speed reference: 0.01 RPM
Analog input 1: 0 RPM *
* The speed-loop algorithm ensures that the
steady-state speed can change by infinitely
small amounts in response to changes in the
reference from these inputs.
Closed-loop speed accuracy
Unidrive LV and Unidrive LFT LV only...
Preset or precision speed reference:
0.00016
RPM or 0.01% of the reference,
whichever is the larger value
C.2 Optional RFI filters
Ratings
Type Part number
Max.
continuous
current
Ingress
protection
A
4200–0010
10 A
IP20
B
4200–0027
27 A
IP20
C
4200–1051
50 A
IP 00
D
4200–1071
75 A
IP 00
Maximum current overload:
150% of rated current for 1 minute in a 10 minute
period.
Voltage (phase-to-phase and phase-to-ground):
480V +10%
AC supply frequency: 48 to 62 Hz
Temperature
Type
Part number
Maximum
ambient
temperature at
rated current
Case
temperature
rise at rated
current
A
4200–0010
50 °C (122°F)
<30°C (86°F)
B
4200–0027
50 °C (122°F)
<40°C (104°F)
C
4200–1051
50 °C (122°F)
<40°C (104°F)
D
4200–1071
50 °C (122°F)
<40°C (104°F)
Power dissipation
Type Part number
Power
dissipation at
rated current
A
4200–0010
25 W
B
4200–0027
40 W
C
4200–1051
60 W
D
4200–1071
100 W
Ground leakage current
Ground-leakage current when the AC supply is 400V
at 50Hz is as follows:
Condition
AB
C to D
Balanced supply phase-to-
phase and phase-to-ground
3.4mA 4.4mA 33mA
One phase disconnected 25mA 35mA 210mA
For other AC supply voltages and frequencies, scale
the values of leakage current proportionally.

Control Techniques Unidrive LV Series Specifications

General

Brand	Control Techniques
Model	Unidrive LV Series
Category	DC Drives
Language	English