Safety
Information
Product
Information
Mechanical
Installation
Electrical
Installation
Getting
Started
Basic
parameters
Running
the motor
Optimization
SMARTCARD
operation
PC tools
Advanced
parameters
Technical
Data
Diagnostics
UL Listing
Information
Affinity User Guide
115
Issue Number: 5 www.controltechniques.com
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
7.1 Quick start Connections
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 7.4
Table 7-1 Minimum control connection requirements for each
control mode
For Solutions Module terminal information see section 11.14
and 16: Solutions Module set-up
on page 193 or the appropriate
Solutions Module option user guide.
7.2 Changing the operating mode
Changing the operating mode returns all parameters to their default
value, including the motor parameters. (Pr
0.49
and Pr
0.34
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
xx.00
, as appropriate:
1253 (EUR, 50Hz AC supply frequency)
1254 (USA, 60Hz AC supply frequency)
2. Change the setting of Pr
0.48
as follows:
The figures in the second column apply when serial communications are
used.
3. Either:
•
Press the red
reset button
•
Toggle the reset digital input
•
Carry out a drive reset through serial communications by setting Pr
10.38
to 100 (ensure that Pr.
xx.00
returns to 0).
7.3 Changing keypad mode
Pressing the following keypad buttons selects the keypad mode
•
Blue
- Auto
•
Red
-
Off
•
Green
- Hand
In Hand mode, the motor speed is adjusted by pressing the keypad up/
down arrow buttons.
In Auto mode, the motor speed control reference is determined by the
value set in the speed/frequency reference selector Pr
0.05
. If hand
mode is selected then the motor speed will not change during the
transition.
In Off mode, the motor will be stopped but pressing the keypad up/down
arrow buttons will allow the keypad control reference Pr
1.17
to be
adjusted. Selecting Hand mode will then ramp the motor up to the
selected speed.
Ensure that no damage or safety hazard could arise from the
motor starting unexpectedly.
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
0.46
Motor
rated current
. This affects the thermal protection of the motor.
If the keypad mode has been used previously, ensure that
the keypad reference has been set to 0 using the
buttons as if the drive is started using the keypad it will run to
the speed defined by the keypad reference (Pr
1.17
).
If the intended maximum speed affects the safety of the
machinery, additional independent over-speed protection
must be used.
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
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
1.53
or
Pr
1.54
are not inadvertently re-allocated to different inputs
or variables. It should be noted that, by default, Pr
1.54
is
controlled from digital input 4 and changing Pr
6.04
or
Pr
8.24
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 5.10
on page 97). These parameters may also be
changed via serial communications so adequate precautions
should be taken if this functionality is utilized.
WARNING
CAUTION
CAUTION
WARNING
WARNING
Drive control method
Requirements
Terminal mode
Drive Enable
Speed reference
Run forward or run reverse
command
Keypad mode
Drive Enable
Serial communications
Drive Enable
Serial communications link
Pr 0.48 setting
Operating mode
1
Open-loop
2
RFC mode
0.4 8
P
L
P
O
n
E
0.4 8
f
r
c
Summary of Contents for Affinity
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