BENSHAW RSi GM2 Series - Page 60

50
GM2 Series VFD
890054-00-00
Learning Basic Features
Basic Tasks
Use Example
Ref.
Acc/Dec stop command
configuration
Disables the current acceleration or deceleration rate and
holds the inverter output frequency (motor speed) at
the most recent speed.
p.74
Linear V/F pattern operation
Increase and decrease the inverter output at a fixed V/F
ratio. Used for constant torque loads regardless of the
frequency.
p.74
Square reduction V/F
pattern operation
Increase and decrease the inverter output with a variable
V/F ratio. Typical variable torque loads are fans and
pumps.
p.76
User V/F pattern operation
Enables setting the V/F pattern specific to motor/load
characteristics. Up to four points can be programmed.
p.77
Manual torque boost
Increase output voltage at start and during low speed
operation. This configuration is for loads that require a
large amount of starting torque, such as elevators or lifts.
p.78
Auto torque boost
Automatically increases the voltage when a large amount
of starting torque is required.
p.79
Motor output voltage
adjustment
Sets the output voltage to match the motor’s rated
voltage.
p.80
Accelerating start
Accelerating start is the typical method used to start a
motor. The motor accelerates directly to the reference
frequency when the run command is applied.
p.80
DC braking at start
Configures the inverter to perform DC injection braking
to stop motor rotation before performing a normal
accelerating start.
p.80
Deceleration stop
Deceleration stop is the typical method used to stop a
motor. When the run command is removed, the motor
decelerates to 0 Hz and stops.
p.82
DC braking after stop
Configures the inverter to perform DC injection braking
during deceleration. The frequency at which DC injection
braking occurs must be defined.
p.83
Free-run stop
When the run command is removed, the inverter output
is turned off and the motor/load coasts to a stop.
p.84
Power braking
Configures the inverter to provide optimal motor
deceleration, without tripping the over voltage
protection.
p.84
Start/maximum frequency
configuration
Defines the start frequency and the maximum frequency.
p.85
Frequency Limits - Upper
and Lower Limits
Configures the inverter output (operating) frequency
limits by defining an upper limit and a lower limit.
p.85
Frequency jump
Configures the inverter to avoid running a motor at
mechanically resonating frequencies.
p.86
2
nd
Operation Configuration
Switch between two different start/stop (command)
sources and two different reference frequency sources.
p.87
Multi-function (digital) Input
Terminal Control
For the digital input terminals, apply filters, select
activation metod (NO/NC operation), and view status.
p.88