Delta VFD-L Series User Manual

VFD-L Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-36
Group 8: Special Parameters
8 - 00
D
C Braking Voltage Level Factory Setting: d 0
Settings d 0
⇔
d30% Unit: 1%

This parameter determines the level of DC Braking Voltage Level output to the motor
during start-up and stopping. When setting DC Braking Voltage, the Maximum Output
Voltage (Pr.1-02) is regarded as 100%. It is recommended to start with a low DC Braking
Voltage Level and then increase until proper holding torque has been attained.
8 - 01
D
C Braking Time during Start-up
F
actory Setting: d 0.0
Settings d 0.0 to d 60.0 sec Unit: 0.1sec

This parameter determines the duration of time that the DC Braking Current will be
applied to the motor during the AC drive start-up. DC Braking will be applied for the
time set in this parameter until the Minimum Frequency is reached during acceleration.
8 - 02
D
C Braking Time during Stopping
F
actory Setting: d 0.0
Settings d 0.0 to d 60.0 sec Unit: 0.1 sec

This parameter determines the duration of time that the DC braking voltage will be
applied to the motor during stopping. If stopping with DC Braking is desired, then
Pr.2-02 must be set to RAMP stop (d 0).
8 - 03
S
tart-Point for DC Braking Factory Setting: d 0
.0
Settings d 0.0 to d 400Hz Unit: 0.1Hz

This parameter determines the frequency when DC Braking will begin during
deceleration.
Operation
Command
ON
OFF
01-05
08-03
Output Frequency
Minimum Output
Frequency
Start-Point for
DC Braking
Time during
Stopping
DC Braking Time
during Stopping
DC Braking Current %
Time
NOTE: 1. DC Braking during Start-up is used for loads that may move before AC drive
starts, such as fans and pumps. These loads may also be moving in the wrong
direction. Under such circumstances, DC Braking can be executed to hold the
load in position before applying a forward motion.

Delta VFD-L Series Specifications

General

Control Method	V/F Control
Output Voltage	0 to Input Voltage
Cooling Method	Fan Cooling
Enclosure Rating	IP20
Overload Capacity	150% for 60 seconds
Protection	Over-voltage, Over-current, Overheat, Under-voltage, Short circuit
Braking Unit	Built-in
Operating Temperature	-10°C to 50°C (14°F to 122°F)
Digital Inputs	5 programmable digital inputs
Analog Input	0-10V, 4-20mA
Communication Interface	RS-485 (Modbus)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Humidity	90% RH, non-condensing
Altitude	Up to 1000m without derating
Input Voltage	200-240V, 380-480V