Emotron VFX 2.1 User Manual

CG Drives & Automation 01-7492-01r1 Functional description 121
11.3.3 Start/Stop settings [330]
Submenu with all the functions for acceleration,
deceleration, starting, stopping, etc.
Acceleration Time [331]
The acceleration time is defined as the time it takes for the
motor to accelerate from 0 rpm to nominal motor speed.
Fig. 96 shows the relationship between nominal motor
speed/max speed and the acceleration time. The same is
valid for the deceleration time.
Fig. 96 Acceleration time and maximum speed.
Fig. 97 shows the settings of the acceleration and
deceleration times with respect to the nominal motor speed.
Fig. 97 Acceleration and deceleration times.
Deceleration Time [332]
The deceleration time is defined as the time it takes for the
motor to decelerate from nominal motor speed to 0 rpm.
Acceleration Time Motor
Potentiometer [333]
It is possible to control the speed of the AC drive using the
motor potentiometer function. This function controls the
speed with separate up and down commands, over remote
signals. The MotPot function has separate ramps settings
which can be set in “Acc MotPot [333]” and “Dec MotPot
[334]”.
If the MotPot function is selected, this is the acceleration
time for the MotPot up command. The acceleration time is
defined as the time it takes for the motor potentiometer
value to increase from 0 rpm to nominal speed.
Deceleration Time Motor
Potentiometer [334]
If the MotPot function is selected, this is the deceleration
time for the “MotPot” down command. The deceleration
time is defined as the time it takes for the motor
potentiometer value to decrease from nominal speed to 0
rpm.
NOTE: If the Acc Time is too short, the motor is
accelerated according to the Torque Limit. The actual
Acceleration Time may then be longer than the value
set.
331 Acc Time
Default: 10.0 s
Range: 0–3600 s
Nominal
Speed
Max Speed
rpm
t
10s
8s
(06-F12)
100% n
MOT
80% n
MOT
rpm
(NG_06-F11)
Nom. Speed
Acc Time [331]
Dec Time [332]
332 Dec Time
Default: 10.0 s
Range: 0–3600 s
NOTE: If the Dec Time is too short and the generator
energy cannot be dissipated in a brake resistor, the
motor is decelerated according to the overvoltage
limit. The actual deceleration time may be longer than
the value set.
333 Acc MotPot
Default: 16.0 s
Range: 0.50–3600 s
334 Dec MotPot
Default: 16.0 s
Range: 0.50–3600 s

Emotron VFX 2.1 Specifications

General

Brand	Emotron
Model	VFX 2.1
Category	DC Drives
Language	English