Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 73
Commissioning Procedure Chapter 3
If an insulation resistance tester is used, it should indicate 50 k megohms or
greater if it is isolated as explained in the next paragraph. If the motor is
connected, the insulation resistance tester should indicate 5 k megohms or
greater.
If a 1560F is being tested, it is recommended that the input and output cables be
disconnected for each phase. If a 1562F is being tested, it is recommended that
the main contactor be in the open position, and that the output cables be
disconnected for each phase. (See points marked with an asterisk * in Figure 36
)
This will ensure the unit is isolated from the line and the motor. The line and the
motor may be tested separately to locate problem areas. If a 1503E is being tested,
consult OEM documentation.
After completing the test, remove all semiconductor jumpers and test the devices
with a multimeter to ensure no damage has occurred from the insulation test.
Reconnect the system as it existed prior to this section. Perform the power supply
and resistance checks in the following sections.
Motor Tuning
The SMC-50 control module performs the motor tuning process on the initial
start sequence of the motor. Motor tuning includes the identification of the
motor parameters and the detection of the motor connection type (Line or
Delta). The SMC-50 control module uses the motor tuning data in its control
algorithm. During the tuning process, the motor does not turn and makes some
audible noise, including pulsing and buzzing. The time to complete the tuning
process is approximately 10 to 20 seconds, but varies based on the size and
characteristics of the individual motor being used. After successful completion of
the tuning process, the motor starts based on the user-programmed start profile.
If you interrupt the tuning process by giving a stop command or removing power
from the unit, the tuning process repeats on the next start command. Subsequent
starts of the motor after a successful tuning do not perform the tuning process.
Note: With some generators, you may have difficulty with the motor tuning. If
so, try tuning the motor while it is connected to line power. Contact Rockwell
Automation technical support if you need assistance.
After the initial successful tuning of the motor, You can re-start the process via
one of the following methods:
1. Change the status of Force Tuning, Parameter 194, to TRUE by using a
configuration tool (such as a HIM) with the motor stopped. During the
next start cycle, the tuning process occurs and Parameter 194 will change
back to FALSE. OR
ATTENTION: Failure to reconnect all wires and cables correctly may result in
equipment damage, personal injury or death.
To Next Page
Loading...
Need help?
General
