Delta VFD2A8ME21ANNAA User Manual

Chapter 12 Description of Parameter SettingsME300
12.1-12-8
If the turntable rotates at 1.5 Hz, Pr.12-22 = 10 Hz (Simple Positioning Stop Frequency 2),
Pr.12-21 = 0 Hz, and Pr.12-30 =10 seconds (Delay Time of Simple Positioning Stop 2), then the
deceleration time is 40 seconds for decreasing from 60 Hz to 0 Hz.
The delay time to stop of 1.5 Hz is 1.5 seconds, the deceleration time is 1 second for decreasing
from 1.5 Hz to 0 Hz.
When STOP command is given, Simple Positioning Stop is activated, its rotation speed is
n = 120 x 1.5 / 4 (revolution / minute) = 1.5 / 2 (revolution / second).
Number of revolutions of motor turntable = (1.5/2 x (1.5 + 2.5)) / 2 = 1.5 (revolutions)
Therefore, the distance travelled by the motor after the STOP command is given = number of
revolutions x circumference = 1.5x 2 π r. It means the turntable stopped after 1.5 revolutions.
Automatic Operation Mode
Default: 0
Settings 0: Disable operation
1: Execute one program cycle
2: Continuously execute program cycles
3: Execute one program cycle step by step
4: Continuously execute one program cycle step by step
5: Disable automatic operation, but the direction setting at multi-step speed 1
to 7 are effective
 This parameter selects the mode of PLC operation for the AC motor drive. The PLC program can
be applied for any external controls, relays or switches. The AC motor drive changes speeds and
directions according to your desired programming.
 When this parameter is set to 5 and it is running by external multi-speed, the highest priority of
the operation direction is Pr.12-41.
Example 1 (Pr.12-40 = 1)
Execute one cycle of the PLC program. Related parameter settings are:
 Pr.04-00–04-06: 1
st
to 7
th
step speed (sets the frequency of each step speed).
 Pr.02-01–02-05: Multi-Function Input Terminals (set one multi-function terminal as
94-Programmable AUTO RUN).
 Pr.02-13–02-16: Multi-Function Output Terminals (set a Multi-Function Terminal as
77-program running indication, 78-Program Step Completed Indication or 79-Program
Running Completed Indication).
 Pr.12-40: PLC mode.
 Pr.12-41: Direction of operation for Master Frequency and1
st
to 7
th
step speed.
 Pr.12-42–12-49: Operation time setting of Master Frequency and 1
st
to 7
th
step speed.

Delta VFD2A8ME21ANNAA Specifications

General

Brand	Delta
Model	VFD2A8ME21ANNAA
Category	DC Drives
Language	English