GE M60 UR Series

GE Multilin M60 Motor Protection System 5-167
5 SETTINGS 5.6 GROUPED ELEMENTS
5
g) TWO-SPEED MOTOR MAIN MENU
PATH: 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.
h) TWO-SPEED MOTOR THERMAL MODEL
PATH: SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  MOTOR  TWO-SPEED MOTOR
 SPEED2 THERMAL MODEL
When two-speed motor functionality is used, these settings allow the selection of proper parameters for the thermal model
when motor is switched to the second speed. There is one thermal model in the M60, and it has inputs for overload condi-
tions from calculations at both speeds. As such, the accumulated thermal capacity is calculated from overload contributions
at each speed.
Refer to the Thermal model sub-section for details on settings for thermal model at the second motor speed.
 TWO-SPEED MOTOR

 SPEED2 THERMAL
 MODEL
See page 5-167.
MESSAGE
 SPEED2
 ACCELERATION TIME
See page 5-168.
MESSAGE
 SPEED2
 UNDERCURRENT
See page 5-169.
 SPEED2 THERMAL
 MODEL
SPEED2 THERMAL MODEL
CURVE: Motor
Range: Motor, FlexCurve A, FlexCurve B, FlexCurve C,
FlexCurve D, IEC
MESSAGE
SPEED2 THERMAL MODEL
TD MULTIPLIER: 1.00
Range: 0.00 to 16.00 in steps of 0.01 when speed 2
thermal modle curve is Motor, otherwise 0.00 to
600.00 in steps of 0.01
MESSAGE
SPEED2 VOLT DEPEND
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
SPEED2 VOLT DEPEND
MIN MOTOR VOLTS: 80%
Range: 60 to 99% in steps of 1
MESSAGE
SPEED2 VD VOLT LOSS:
Off
Range: FlexLogic operand
MESSAGE
SPEED2 VD STALL CURR
@ MIN V: 4.50 x FLA
Range: 1.50 to 20.00  FLA in steps of 0.01
MESSAGE
SPEED2 VD SAFE STALL
TIME @ MIN V: 20.0 s
Range: 0.1 to 1000.0 s in steps of 0.1
MESSAGE
SPEED2 VD ACCL INSCT
@ MIN V: 4.00 x FLA
Range: 1.50 to 20.00  FLA in steps of 0.01
MESSAGE
SPEED2 VD STALL CURR
@ 100%V: 6.00 x FLA
Range: 1.50 to 20.00  FLA in steps of 0.01
MESSAGE
SPEED2 VD SAFE STALL
TIME @ 100%V: 20.0 s
Range: 0.1 to 1000.0 s in steps of 0.1
MESSAGE
SPEED2 VD ACCL INSCT
@ 100%V: 5.00 x FLA
Range: 1.50 to 20.00  FLA in steps of 0.01