User manual BENSHAW 15KV MVRSM

[. . . ] BENSHAW REDISTART MICRO II INSTRUCTION MANUAL 15kV SERIES Solid State Motor Control Technology Publication #: 890015-06-01 The Leader In TABLE OF CONTENTS Table of Contents 1. 8 8 8 8 8 9 9 9 9 10 11 12 13 13 13 2. RediStart Micro II Computer Card Jumpers . Programming The Motor Deceleration TruTorque Acceleration Ramp . [. . . ] The default value for the maximum torque parameter is 105%. Values Default 52 4. 7 PROGRAMMING: Starter Setup - TruTorque Ramp Ramp Time Description The ramp time parameter sets the time it takes for the commanded torque to go from the Initial Torque Setting to the Maximum Torque Setting. To make the motor accelerate faster, decrease the ramp time. To make the motor accelerate slower, increase the ramp time. If the ramp time expires before the motor reaches full speed the starter will maintain the set Maximum Torque level until either the motor reaches full speed, the stall (UTS) timer expires, or the motor thermal overload trips. Note: This ramp time setting is only used for TruTorque starts. It is not the same ramp time parameter that is used for current ramp profile starts. Note: Setting the ramp time to a specific value does not necessarily mean that the motor will take this time to accelerate to full speed. The motor and load may achieve full speed before the ramp time expires if the application does not require the set ramp time and maximum torque to reach full speed. Alternatively, the motor and load may take longer than the set ramp time to achieve full speed. Values Default The TruTorque ramp time is adjustable from 0 to 120 seconds in 1 second intervals. The default value for the TruTorque ramp time is 15 seconds. TT Over Cu (TruTorque overcurrent trip) Description The TruTorque overcurrent trip parameter is set as a percentage of FLA. If the motor current remains above this level for longer than the delay time the starter will trip. In order to protect applications such as pumps from water hammer when a fault does occur a normal deceleration profile will occur to "gracefully" shut down the system before the TruTorque Overcurrent Fault is displayed and the starter is disabled. Note: The TruTorque Overcurrent Trip only operates during TruTorque ramping before the starter has indicated an up-to-speed condition. If overcurrent protection is desired after the motor has come up to speed the Over Current parameter under the Motor Protection menu must be used. Values The TruTorque overcurrent can be set to Off or from 100% to 800% of FLA in 1% increments. The default value for the TruTorque Overcurrent parameter is Off Default Ovr Cur Dl (TruTorque overcurrent trip delay) Description The TruTorque overcurrent trip delay parameter sets the time that the motor current must exceed the TruTorque Overcurrent Trip setting, while the starter is ramping, before a trip will occur. The TruTorque overcurrent delay parameter can be set from 0. 1 to 90. 0 seconds in 0. 1 second intervals. The default value for the TruTorque overcurrent delay parameter is 0. 1 seconds. Values Default 53 4. 7 PROGRAMMING: Starter Setup - TruTorque Ramp TT DCL Tim (TruTorque deceleration time) Description The TruTorque deceleration time sets how quickly the motor decelerates. Usually a time of 30 seconds is a good starting point. To make the motor decelerate at a slower rate increase this time or to make the motor stop quicker decrease this time. The TruTorque deceleration time parameter is adjustable from 0 to 60 seconds in 1 second intervals The default TruTorque deceleration time is 0 seconds. Values Default End DCL To (ending deceleration torque) Description The value sets the final torque level for the Trutorque deceleration ramp. [. . . ] Each line lists the parameter, page reference, blank, and default setting. The blank spot is for entering the programmed value so that a record of the entered parameters is kept. If the parameter can not be programmed then its value is listed. NOTE: Not all starters have all of the listed parameters. Recording Parameters Quick Start Parameter Quick Start Motor FLA Serv. [. . . ]