GE M60

CHAPTER 5: SETTINGS GROUPED ELEMENTS
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5-221
5
UNDERCURRENT TRIP RESET DLY — This setting specifies a time delay to reset the trip command. Set this delay to be long
enough to allow breaker or contactor to disconnect the motor.
UNDERCURRENT BLOCK — This setting specifies an operand used to block the undercurrent function. A panel cutoff switch
or other user specified condition is typically used to block the function.
Figure 5-119: Undercurrent logic
5.7.3.7 Two-speed motor menu
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  MOTOR  TWO-SPEED MOTOR
The two-speed motor menu appears only if two-speed motor functionality is enabled in the
SETTINGS  SYSTEM SETUP
 MOTOR
menu.
5.7.3.8 Two-speed motor thermal model
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  MOTOR  TWO-SPEED MOTOR  SPEED2 THERMAL
MODEL
 TWO-SPEED MOTOR


 SPEED2 THERMAL
 MODEL
See below

 SPEED2
 ACCELERATION TIME
See page 5-222

 SPEED2
 UNDERCURRENT
See page 5-223
 SPEED2 THERMAL
 MODEL

SPEED2 THERMAL MODEL
CURVE: Motor
Range: Motor, FlexCurve A, FlexCurve B, FlexCurve C,
FlexCurve D, IEC

SPEED2 THERMAL MODEL
TD MULTIPLIER: 1.00
Range: 0.00 to 16.00 in steps of 0.01 when speed 2
thermal model curve is Motor, otherwise 0.00 to
600.00 in steps of 0.01

SPEED2 VOLT DEPEND
FUNCTION: Disabled
Range: Disabled, Enabled

SPEED2 VOLT DEPEND
MIN MOTOR VOLTS: 80%
Range: 60 to 99% in steps of 1