PowerTec DFS-1 manual Frequencyoutputdigital Inputs

Page 15

FREQUENCYOUTPUT:DIGITAL INPUTS:

There are two outputs available to supply a frequency for external use.

The first is located at TB2:B terminal 10 (+) and 11 (-). This is an output which is intended to provide

areference frequency input for another DFS-1, BCDMAX or CRM-1. This output is not compatible with the DIGIMAX. It will provide a signal of +/- 1.5V minimum when connected to another DFS-1's reference frequency input. This output on a unit configured as a master, operates at 16 times the frequency of the motor speed output reference. There is a 120 ohm termination resistor built into the output for transmission line termination.

When operating the DFS as a slave, the output frequency is internally divided by 16 in addition to being multiplied by the set ratio from the slave. As a consequence, the frequency output from a DFS slave cannot be used as the reference to another DFS slave without some way of first multiplying this frequency by 16. POWERTEC’s Cascade Ratio Multiplier option board (4001-153430-XXX) can be used for this purpose. Contact the factory for any frequency following application which requires a reference source other than a master DFS.

The other frequency output is at TB2:B13. This is a 24VDC peak square wave referenced to the DFS- 1 common (TB2:B14). This signal is at the motor speed output reference frequency and may be used to interface with a DIGIMAX or a BLDC motor control. This output sources a maximum of 10mA and can sink 30mA.

There are eight digital control inputs on TB2:A as well as a +24VDC supply (TB2-A14) and com- mon (TB2-A1). The eight inputs are optical isolator input diodes with a common cathode connection at TB2-A2. When the +24VDC, DFS-1 supply is used to power the inputs, TB2:A2 must be jumpered to the 24VDC common terminal on TB2:A1.

The functions of all inputs are programmable except Emergency Stop (TB2-A3). All digital inputs are electrically isolated from the DFS-1 power supplies and common when an external power supply is used to power the digital inputs (such as from a PLC).

The default parameter setup is for a set of standard motor controller input connections on TB2:A terminal strip (see figure 3 on page 3).

Five of the inputs are set up for standard push- button operation of the DFS-1. They are:

Run

4 (+)

Preset

5 (+)

UP (increase)

6 (+)

DOWN (decrease)

7 (+)

Reverse

8 (+)

All of these inputs are referred to TB2-A2. Note that TB2-A2 (the common cathode connection) must be jumpered to common (TB2:A1) in the basic connections.

Each of these inputs will take a +24VDC input (no more than 30VDC, not less than 18VDC). If an external source of +24VDC is used, TB2-A2 on the upper level must be connected to the negative side of the external source.

Mode of Operation:

differential

Number of receivers:

32 maximum

Maximum Cable Length:

4000 feet

Maximum Frequency:

10 Megahertz

Common Mode Voltage:

+12V, -7V

maximum

 

Driver Output:

+/-1.5V minimum

Driver Load:

60 ohm minimum

Driver Short Circuit: 1

50 mA to ground

Driver Output Resistance:

120 ohms (ON)

Receiver Input Resistance:

12 Kohms

Receiver Sensitivity:

+/-200 mA

B

Figure 5: Slaving DFS-1 units with the Reference Frequency Output.

Page 10

DFS-1 Manual

Revised 7/95

 

 

POWERTEC Ind. Corp.©

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Contents Microprocessor Based Brushless D.C Motor Controller DFS-1Subsidiary Powertec Industrial Corporation Errata October Additional InfoMounting -- Read this Entire Section Before Starting InstallationContents DFS 1 Setup Communication Protocol Retrofitting the Model 1000,1000A, or 1000ARMenu and Keypad Hierarchy Revised 7/95 Introduction Summary of Warranty and Disclaimer Connections Power ConnectionsAnalog Inputs Motor Encoder CableAnalog Outputs FrequencyinputFrequencyoutputdigital Inputs Digital Outputs CommunicationsDigital Out #4 Reverse This page WAS Intentionally Left Blank Default Setup Revised 7/95 VDC Power SuppliesInput Setup Function This Supply is for the Motor Encoder onlyOutputs #1 Reference Frequency Output Frequency Inputs OutputsDigital Inputs Input #1 Reference Frequency InputNodes Maximum Standard RS-48519.2K, and 38.4K baud CableThis page WAS Intentionally Left Blank Number Baud Rate Local / Remote ControlUnit ID Baud RateCommunications Protocol Modes of OperationTo 1 decimal Maximum Motor Speed Encoder Pulses PER RevolutionUSE Parameter #6 to SET the Absolute Maximum Motor Speed Slave Ramp Down Time Master Ramp UP TimeMaster Ramp Down Time Slave Ramp UP TimeEngineering Units Master Preset SpeedSlave Ratio Preset To 99,999 decimal Default Value 0000 06D6hAnalog Input #1 Mode Select To 32 decimal Default Value 0000 0001hMaximum Ratio Future use Analog Input #1 Signal ConditioningAnalog Input #1 LOW Engineering Units EGU Center valueAnalog Input #2 LOW Engineering Units EGU Analog Input #2 Mode SelectAnalog Input #2 Signal Conditioning Analog Input #1 High Engineering Units EGUAnalog Output #1 High Engineering Units EGU Analog Output #1 Mode SelectAnalog Output #2 Mode Select Analog Output #1 LOW Engineering Units EGUDefault Value 0000 0096h Analog Output #2 LOW Engineering Units EGUAnalog Output #2 High Engineering Units EGU Digital Input #4 Function Digital Input #1 FunctionDigital Input #2 Function Digital Input #3 FunctionDigital Output #1 Function Digital Input #5 FunctionDigital Input #6 Function Digital Input #7 FunctionDigital Output #3 Function Drive Gain SettingDrive Stability Setting Digital Output #2 FunctionJump or MOP Operation Drive Regenerative Current LimitPulse Multiplier Modulation and Operation ModesSlave Jump Down Amount Master Jump UP AmountMaster Jump Down Amount Slave Jump UP AmountFloat or Freeze Communications Turnaround DelayInput Debounce Value Minimum RatioEGU TAG Select Slave JOG Ratio Slave Preset #2Master Preset #2 ContactordelayThis 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 SET Parameter #3 to Select Which Functions are Remote Communications SetupThis parameter selects the Powertec binary protocol SET Parameter #56 for Communications Turn around DelayError Codes for ON-BOARD Display This page WAS Intentionally Left Blank Communications Protocol Command List Parameter List ERR DlestxuidcmddleetxcsmDLESTXUIDCMDCS4CS3 CS2CS1DLEETXCSM DlestxuidnakerrdleetxcsmDlestxuidcmdprmdleetxcsm Response If no errors and unit i.d. does not equalResponse If no errors DlestxuidackdleetxcsmDLESTXUIDACKDA4DA3 DLESTXUIDCMDPRMVL4Dlestxuidcmdatddleetxcsm DlestxuidcmddtadleetxcsmDlestxuidcmddigdleetxcsm DLESTXUIDCMDDTAVL4BIT PSN SMH Where Is unused Is Jog Is Preset Is Contactor AuxDLESTXUIDCMDDIGVL4 BIT PSN SMLBIT PSN RMH Message DLESTXUIDCMD0000Smhsmldleetxcsm BIT PSN RMLDLESTXUIDCMDAMDVL4 Attachmentb Parameter DescriptionAdditional Info Output Contactor Typical Dynamic Braking Typical This page WAS Intentionally Left Blank DFS-1 Model 1000 series retro-fit kit consists Quantity Quantity Pin Connector CableRevised 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
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