GE LM10 Maintained off, Auto Restart off, DevNet Fault on, 50Hz Sys off, Poll Data, Reset Run Hrs

CHAPTER 4: FUNCTIONALITY

Other Settings

Maintained off

Other Settings

Auto Restart off

Other Settings

DevNet Fault on

Other Settings

50Hz Sys off

Other Settings

Poll Data 1

Other Settings

Reset Run Hrs.

CONFIGURATION SETTINGS

Range: on, off

Range: on, off

Range: on, off

Range: on, off

Range: 1, 2, 3, 4. Not available for revisions 1.40 and lower

Range: on, off

One or more optional faults may be enabled after the basic functions are configured.

•U/O Volt En (undervoltage/overvoltage enable): This setting enables or disables the under/overvoltage element. LM10 revisions 1.40 and lower do not support this setting.

Maximum and minimum voltage trip points are hard coded in the device and are not user programmable. These points are approximately 80% and 117% of nominal voltage. This corresponds to 96 V and 140 V with 120 V nominal voltage.

•Maintained (maintained switching): This setting distinguishes between maintained (latched) versus momentary AC input switches. This is only applicable to Manual control, and has no effect on control via DeviceNet. The default setting is “off” for momentary switches. No seal in contact is required. In the maintained mode a run switch must stay closed if opened the LM10 will stop the motor. The stop switch input for safety reasons will interrupt the run relay in maintained or momentary mode. If the run switch is on when the stop command is given, it will need to be turned off and back on to get the motor running again. The stop command also interrupts the run relay if controlled by the network. The network will need to send another run command to restart the motor.

When using the maintained switching feature, potential safety hazards must be considered and an appropriate setup chosen for each individual application.

•Auto Restart (power loss when running): The LM10 will be able to recover from a power loss of up to 4 seconds and return to its previous run state. Enabling autorestart allows the unit to restart the motor without operator intervention using a momentary run input. The default condition is “off” – this would require the operator to restart the motor after the LM10 regains power.

Other conditions may interfere with this operation. A fault condition like voltage or DeviceNet may trip the LM10. Under the voltage condition the LM10 would be faulted

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–35