CHAPTER 5: SETTINGS
GROUPED ELEMENTS
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
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5
If the speed 2 acceleration time functionality is enabled, the element reads current from the source selected for speed 2 by
the S
ETTINGS
SYSTEM SETUP
MOTOR
2-SPEED MOTOR SOURCE
setting when the motor is switched from speed 1 to
speed 2.
Acceleration time settings and functionality at speed 2 are identical to those of speed 1 and are described in the
Acceleration Time section earlier. This applies to the
SPEED2 ACCELERATION CURRENT
,
SPEED2 ACCELERATION TIME
, and
SPEED2 ACCEL MODE
settings.
Two additional settings define the transition between speeds. A two-speed motor is usually started at a low speed (speed
1) and then switched to a higher speed (speed 2) when required. When the motor starts directly at high speed, then the
SPEED2 ACCELERATION TIME
setting specifies the maximum acceleration time at speed 2. When the motor is switched from
a low-to-high speed setting, the
SPEED2 TIMER FROM SPEED 1-2
setting specifies the acceleration time. When motor is
switched from high speed to low speed, the
SPEED2 TRANS 2-1 OP
FlexLogic operand is set for time defined by the
SPEED2
SWITCH 2-1 DELAY
setting to allow inputs for control logic of contactors and breakers at both speeds. FlexLogic operands
required for contactor and breaker control are provided. The acceleration time at speed 2 becomes functional only if the
acceleration time at speed 1 is enabled. When the acceleration time at any speed is not required, it can be permanently
blocked.
SPEED2 ACCEL TIME FROM SPEED 1-2
— This setting is provide to select maximum accelerating time from speed 1 to speed 2
when the motor switches from low-to-high speed.
Figure 5-121: Two-speed acceleration time logic
5.7.3.10 Two-speed motor undercurrent
SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
MOTOR
TWO-SPEED MOTOR
SPEED2
UNDERCURRENT
SPEED2 ACCEL TIME FR
SPEED 1-2: 10.00 s
Range: 0.05 to 180.00 s in steps of 0.01
SPEED2 ACCEL BLOCK:
Off
Range: FlexLogic operand
SPEED2
UNDERCURRENT
SPEED2 U/CURR START
BLOCK DLY: 0.50 s
Range: 0.00 to 600.00 s in steps of 0.01
SPEED2 U/CURR ALARM
PICKUP: 0.70 x FLA
Range: 0.10 to 0.95 × FLA in steps of 0.01
SPEED2 U/CURR ALARM
PICKUP DLY: 2.00 s
Range: 0.00 to 600.00 s in steps of 0.01
Содержание M60
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Страница 10: ...x M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 14: ...1 4 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 208: ...4 88 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXLOGIC DESIGN USING ENGINEER CHAPTER 4 INTERFACES 4 ...
Страница 494: ...5 286 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CONTROL ELEMENTS CHAPTER 5 SETTINGS 5 Figure 5 158 Time out mode ...
Страница 552: ...5 344 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 596: ...7 14 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 602: ...9 4 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL SATURATION DETECTOR CHAPTER 9 THEORY OF OPERATION 9 ...
Страница 652: ...C 6 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
Страница 660: ...iv M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...