4-1
Operating the Drive
650G AC Drive
A typical alarm
Chapter 4
O
PERATING THE
D
RIVE
Pre-Operation Checks
WARNING!
Wait for 5 minutes after disconnecting power before working on any part of the system or removing the
terminal cover from the drive.
Initial checks before applying power:
•
Check for damage to equipment.
•
Mains power supply voltage is correct.
•
Motor is of correct voltage rating and is connected in either star or delta, as appropriate.
•
Check all external wiring circuits - power, control, motor and earth connections.
Note:
Completely disconnect the drive before point to point checking with a buzzer, or when checking
insulation with a Meggar.
•
Check for loose ends, clippings, drilling swarf etc. lodged in the drive and system.
•
If possible check that the motor can be turned freely, and that any cooling fans are intact and free from obstruction.
Ensure the safety of the complete system before the drive is energised:
•
Ensure that rotation of the motor in either direction will not cause damage.
•
Ensure that nobody else is working on another part of the system which will be affected by powering up.
•
Ensure that other equipment will not be adversely affected by powering up.
Prepare to energise the drive and system as follows:
•
Remove the supply fuses, or isolate using the supply circuit breaker.
•
Disconnect the load from the motor shaft, if possible.
•
If any of the drives control terminals are not being used, check whether these unused terminals need to be tied high
or low.
•
If the motor thermistor terminals are not connected to a motor thermistor, connect these terminals together.
•
Check external run contacts are open. Check external speed setpoints are all zero.
Re-apply power to the drive and system
Initial Start-up Routines
Note:
Refer to Chapter 5: “Using the Keypad” to familiarise yourself with the keypad’s
indications, and how to use the keys and menu structure.
WARNING!
Unpredictable motion, especially if motor parameters are incorrect.
Ensure no personnel are in the vicinity of the motor or any connected machinery.
Ensure that machinery connected to the motor will not be damaged by
unpredictable motion.
Ensure that the emergency stop circuits function correctly before running the motor
for the first time.
The drive can be started in either Remote Control or Local Control.
By default, the drive will
start in Local Control.
These routines assume that the drive’s control terminals are wired as shown in the Control
Wiring Connections in Chapter 3.
Connected in this way, a positive setpoint will rotate the motor in a clockwise direction when
viewed down the shaft, looking toward the motor.
Note:
If during the start-up routine the display shows either an alarm
(indicated by the letter “A”) or a flashing Warning message,
refer to Chapter 7: “Trips and Fault Finding”.
!
IMPORTANT
On power-up
in Remote
Control, the
drive will
immediately
start running if
the RUN
signal is
!
IMPORTANT
When power
is applied to
the drive in
Remote
Control, it will
immediately
start running if
the RUN
signal is
active.
