Additional Info, October | PowerTec DFS-1 guide

Additional Info

DFS Software Modification For

Dynamic Braking or Output Contactor

Operation

25 October, 1994

Functional Description

A new function for Contactor Aux has been added to the digital input choices. When configured as described in the example, 24VDC must be present at this input for the drive to run. Parameter #62, Contactor Delay, is a number of 25ms intervals that will occur between the DFS controller acceptance of a run command and the firing of the transistors. If the Contactor Aux input signal is low, the DFS starts the timer and closes the Contactor Output. If the Contactor Aux input does not switch high before the timer runs out, the drive will return to the stop condition. If the Contactor Aux input does switch high, the drive will start running when the timer runs out.

Example Setup for Dynamic Braking

1Set Digital Input #7 mode to Contactor Aux, polarity to Active Low.

2Set Digital Output #4 mode to Contactor, polarity to Normally Closed.

3Set Contactor Delay to 20 (20 x 25ms = 500ms = 1/2 second).

Run command causes the Contactor Output to close, the Contactor Relay opens, the feedback contacts close and the drive starts to run.

Example Setup for Output Contactor

1Set Digital Input #7 mode to Contactor Aux, polarity to Active Low.

2Set Digital Output #4 mode to Contactor, polarity to Normally Closed.

3Set Contactor Delay to 10 (10 x 25ms = 250ms = 1/4 second).

Run command causes the Contactor Output to close, the Contactor Relay closes, the feedback contacts close and the drive starts to run.

The difference in the operation of the two types of contactors is that the Dynamic Braking Contactor is normally closed whereas the Output Contactor is normally open. In both contactors, the auxilliary contacts are normally open.

Terms Used

1Contactor Aux - The digital input on the DFS board which is connected to the feedback contacts on the contactor relay.

2Contactor Output - The digital output on the DFS board which activates the solenoid on the contactor relay.

3Signal low - 0VDC

4Signal high - 24VDC

Image 4

PowerTec DFS-1 manual Additional Info, October

Contents

DFS-1 Microprocessor Based Brushless D.C Motor Controller Subsidiary Powertec Industrial Corporation Errata Additional Info October Installation Mounting -- Read this Entire Section Before Starting Contents DFS 1 Setup Retrofitting the Model 1000,1000A, or 1000AR Communication ProtocolMenu and Keypad Hierarchy Revised 7/95 Introduction Summary of Warranty and Disclaimer Power Connections Connections Motor Encoder Cable Analog Inputs Frequencyinput Analog Outputs Frequencyoutputdigital Inputs Communications Digital OutputsDigital Out #4 Reverse This page WAS Intentionally Left Blank Default Setup Revised 7/95 Power Supplies Input Setup FunctionThis Supply is for the Motor Encoder only VDC Frequency Inputs Outputs Digital InputsInput #1 Reference Frequency Input Outputs #1 Reference Frequency Output Standard RS-485 19.2K, and 38.4K baudCable Nodes Maximum This page WAS Intentionally Left Blank Local / Remote Control Unit IDBaud Rate Number Baud Rate Modes of Operation Communications ProtocolTo 1 decimal Encoder Pulses PER Revolution Maximum Motor SpeedUSE Parameter #6 to SET the Absolute Maximum Motor Speed Master Ramp UP Time Master Ramp Down TimeSlave Ramp UP Time Slave Ramp Down Time Master Preset Speed Slave Ratio PresetTo 99,999 decimal Default Value 0000 06D6h Engineering Units To 32 decimal Default Value 0000 0001h Analog Input #1 Mode SelectMaximum Ratio Analog Input #1 Signal Conditioning Analog Input #1 LOW Engineering Units EGUCenter value Future use Analog Input #2 Mode Select Analog Input #2 Signal ConditioningAnalog Input #1 High Engineering Units EGU Analog Input #2 LOW Engineering Units EGU Analog Output #1 Mode Select Analog Output #2 Mode SelectAnalog Output #1 LOW Engineering Units EGU Analog Output #1 High Engineering Units EGU Analog Output #2 LOW Engineering Units EGU Default Value 0000 0096hAnalog Output #2 High Engineering Units EGU Digital Input #1 Function Digital Input #2 FunctionDigital Input #3 Function Digital Input #4 Function Digital Input #5 Function Digital Input #6 FunctionDigital Input #7 Function Digital Output #1 Function Drive Gain Setting Drive Stability SettingDigital Output #2 Function Digital Output #3 Function Drive Regenerative Current Limit Pulse MultiplierModulation and Operation Modes Jump or MOP Operation Master Jump UP Amount Master Jump Down AmountSlave Jump UP Amount Slave Jump Down Amount Communications Turnaround Delay Input Debounce ValueMinimum Ratio Float or Freeze Slave JOG Ratio Slave Preset #2 Master Preset #2Contactordelay EGU TAG Select This page WAS Intentionally Left Blank DFS 1 Setup Basic Setup of the DFS-1 Controller Master Mode Setup Slave Mode Setup Inputs and Outputs Setup Communications Setup This parameter selects the Powertec binary protocolSET Parameter #56 for Communications Turn around Delay SET Parameter #3 to Select Which Functions are Remote Error Codes for ON-BOARD Display This page WAS Intentionally Left Blank Communications Protocol Command List Parameter List Dlestxuidcmddleetxcsm DLESTXUIDCMDCS4CS3 CS2CS1DLEETXCSMDlestxuidnakerrdleetxcsm ERR Response If no errors and unit i.d. does not equal Response If no errorsDlestxuidackdleetxcsm Dlestxuidcmdprmdleetxcsm DLESTXUIDCMDPRMVL4 DlestxuidcmdatddleetxcsmDlestxuidcmddtadleetxcsm DLESTXUIDACKDA4DA3 DLESTXUIDCMDDTAVL4 Dlestxuidcmddigdleetxcsm Where Is unused Is Jog Is Preset Is Contactor Aux DLESTXUIDCMDDIGVL4BIT PSN SML BIT PSN SMH Message DLESTXUIDCMD0000 SmhsmldleetxcsmBIT PSN RML BIT PSN RMH Attachmentb Parameter Description DLESTXUIDCMDAMDVL4 Additional Info Output Contactor Typical Dynamic Braking Typical This page WAS Intentionally Left Blank Quantity Pin Connector Cable DFS-1 Model 1000 series retro-fit kit consists Quantity Revised 7/95 Appendix B Not visible in some modes Revised 7/95 Powertec Ind. Corp Figures 2 DFS-1 Manual Figures DFS-1 Manual Igur DFS-1 Manual Select AI ModeEnterEnter DFS-1 Manual Igur DFS-1 Manual Sel DFS-1 Manual Igures DFS-1 Manual Figures 29 DFS-1 Manual