Running The Motor; Quick Start Connections; Basic Requirements; Minimum Control Connection Requirements For Each Control Mode - Emerson Powerdrive F300 User Manual

Safety Product Mechanical
information information installation
7

Running the motor

This chapter takes the new user through all the essential steps to
running a motor for the first time, in each of the possible operating
modes.
For information on tuning the drive for the best performance, see
Chapter 8 Optimization on page 151.
Ensure that no damage or safety hazard could arise from the
motor starting unexpectedly.
WARNING
The values of the motor parameters affect the protection of
the motor.
The default values in the drive should not be relied upon.
It is essential that the correct value is entered in Pr 00.046
CAUTION
Rated Current. This affects the thermal protection of the
motor.
If the drive is started using the keypad it will run to the speed
defined by the keypad reference (Pr 01.017). This may not
be acceptable depending on the application. The user must
check in Pr 01.017 and ensure that the keypad reference
CAUTION
has been set to 0.
If the intended maximum speed affects the safety of the
machinery, additional independent over-speed protection
must be used.
WARNING
7.1

Quick start connections

Fire Mode - Important Warning
When Fire Mode is active the motor overload and thermal
protection are disabled, as well as a number of drive
protection functions. Fire Mode is provided for use only in
WARNING
emergency situations where the safety risk from disabling
protection is less than the risk from the drive tripping -
typically in smoke extraction operation to permit evacuation
of a building. The use of Fire Mode itself causes a risk of fire
from overloading of the motor or drive, so it must only be
used after careful consideration of the balance of risks.
Care must be taken to prevent inadvertent activation or
deactivation of Fire Mode. Fire Mode is indicated by a
flashing display text warning "Fire mode active".
Care must be taken to ensure that parameters Pr 01.053 or
Pr 01.054 are not inadvertently re-allocated to different
inputs or variables. It should be noted that, by default,
Pr 01.054 is
controlled from digital input 4 and changing Pr 08.024 can
re-allocate this digital input to another parameter. These
parameters are at access level 2 in order to minimize the risk
of inadvertent or unauthorized changes. It is recommended
that User Security be applied to further reduce the risk (see
section 5.9 Parameter access level and security on
page 109). These parameters may also be changed via
serial communications so adequate precautions should be
taken if this functionality is utilized.
134
Electrical Getting Basic
installation started parameters the motor
Running NV Media Card
Optimization
Operation
7.1.1

Basic requirements

This section shows the basic connections which must be made for the
drive to run in the required mode. For minimal parameter settings to run
in each mode please see the relevant part of section 7.3 Quick start
commissioning / start-up on page 139.
Table 7-1 Minimum control connection requirements for each
control mode
Drive control method
Auto mode
Hand mode
Serial communications
Table 7-2 Minimum requirements for each mode of operation
Operating mode
Open loop mode
RFC – A sensorless
(without feedback position)
RFC - S sensorless
(without position feedback)
7.2

Changing the operating mode

Changing the operating mode returns all parameters to their default
value, including the motor parameters. User Security Status (Pr 00.049)
and User Security Code (Pr 00.034) are not affected by this procedure).
Procedure
Use the following procedure only if a different operating mode is
required:
1. Enter either of the following values in Pr mm.000, as appropriate:
1253 (50 Hz AC supply frequency)
1254 (60 Hz AC supply frequency)
2. Change the setting of Pr 00.048 as follows:
Pr 00.048 setting
The figures in the second column apply when serial communications are
used.
3. Either:
• Press the red
• Toggle the reset digital input
• Carry out a drive reset through serial communications by setting
Pr 10.038 to 100 (ensure that Pr. mm.000 returns to 0).
Onboard Advanced Technical
Diagnostics
PLC parameters data
Requirements
Drive enable
Speed reference
Run forward
Drive enable
Drive enable
Serial communications link
Requirements
Induction motor
Induction motor without speed
feedback
Permanent magnet motor without
speed and position feedback
Operating mode
1 Open-loop
2
3
reset button
Powerdrive F300 User Guide
UL listing
information
RFC-A
RFC-S
Issue Number: 2