Yaskawa VS-616G5 Series Revision F Quick-Start User Manual

Page 52

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VS-616G5 Installation & Quick-Start Manual

49

This function selects the stopping method suitable for the particular application.

· Deceleration to Stop (B1-03 = “0”)

Upon removal of the FWD (REV) run command, the motor decelerates at a deceleration rate deter-
mined by the time set in deceleration time 1 (C1-02) and DC injection braking is applied immediately
before stop. If the deceleration time is short or the load inertia is large, an overvoltage fault (OV) may
occur during deceleration. In this case, increase the deceleration time or install an optional braking
resistor/unit.
Braking torque: without braking resistor, approx. 20% of motor rated torque

with braking resistor, approx. 150% of motor rated torque

· Coast to Stop (B1-03 = “1”)

Upon removal of the FWD (REV) run command, the motor coasts. After a stop command is given, a
run command can be accepted, but operation does not start until after the minimum baseblock time
(L2-03) elapses.

V/f

Control

V/f

w/ PG

Open Loop

Vector

Flux

Vector

B1-03 Stopping Method Selection

Stopping Method

Setting

Description

0

Deceleration to stop (factory default)

1

Coast to stop

2

DC injection to stop

3

Coast to stop with timer

Output Frequency

Decel time 1 (C1-02)

Run Command

ON

OFF

DC injection Braking Time

at Stop (B2-04)

Factory Default: 0.5 s

DC Injection Braking Start - B2-01)

Factory Default: 0.5Hz

Zero Speed Level (Frequency at

Figure 19 Stopping Method - Deceleration to Stop

Run command

ON

OFF

Output frequency

Inverter output is shut OFF

when stop command is given.

Figure 20 Stopping Method - Coast to Stop

Chapter 3 - Quick-Start Programming

Programming Menu

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