Bus Cover Description for Shaft Encoder

Transcription

1 Bus Cover Description for Shaft Encoder Profibus-DP features Profibus-DP Profibus features Device Class and Data exch. functions Input: Position value Additional parameterized speed signal (readout of the current rotary speed) Output: actual value that corresponds to the defined axis position of the system. Parameter functions Rotating direction With the operating parameter the rotating direction for which the Scaling: - Position error Default setting User address View inside Profibus-DP bus cover A B A B Settings of terminating resistors for Profibus-DP = Last User Settings of user address for Profibus-DP Contact description Profibus-DP Example: User address A B A negative serial data line Positive serial data line Supply voltage... VDC Ground contact for Z.P Z.P Bus cover for Profibus-DP Bus cover for Profibus-DP, stainless steel

2 CAN features View inside CAN bus cover CAN Operating modes Polling Mode (asynch) The encoder sends data on request by another subscriber. Cyclic Mode (asynch-cyclic) The encoder cyclically sends the current process actual value without a request by a master. The cycle time can be parameterized for values between and ms. actual process value that corresponds to the defined axis position of the system. The offset value between the encoder zero point and the mechanical zero point of the system is saved in the encoder. Rotating direction With the operating parameter the rotating direction in which the Scaling - Position error Default setting kbit/s, node number Settings of user address for CAN Example: User address. Setting of terminating resistor for CAN = Last User Setting CAN baud rate Baud rate Setting Dip Switch kbit/s OFF OFF OFF kbit/s OFF OFF kbit/s OFF OFF kbit/s OFF kbit/s OFF OFF kbit/s OFF kbit/s OFF MBit/s Z.P Z.P Bus cover for CAN Bus cover for CAN, stainless steel Contact description CAN CAN Bus Signal (dominant Low) CAN Bus Signal (dominant High) Supply voltage... VDC Ground contact for

3 Bus Cover Description for Shaft Encoder CANopen features View inside CANopen bus cover CANopen Device profile CANopen - CiA DSP, V. CANopen Features Device Class, CAN.B Operating modes Polling Mode (asynch, via SDO) (with SDO progr.) Cyclic Mode (asynch-cyclic) The encoder cyclically sends the current process actual value without a request by a master. The cycle time can be parameterized for values between and ms. Synch Mode (synch-cyclic) The encoder sends the current actual process value after receiving a synch telegram sent by a master. The synch counter in the encoder can be parameterized so that the position value is not sent until after a defined number of synch telegrams. Acyclic Mode (synch-acyclic) actual process value that corresponds to the defined axis position of the system. The offset value between the encoder zero point and the mechanical zero point of the system is saved in the encoder. Rotating direction With the operating parameter the rotating direction in which the Scaling - Position and parameter error Default setting kbit/s, node number Setting CANopen baud rate Contact description CANopen CAN Bus Signal (dominant Low) CAN Bus Signal (dominant High) Supply voltage... VDC Ground contact for Setting of Terminating Resistor for CANopen = Last User Baud rate Setting Dip Switch kbit/s OFF OFF OFF kbit/s OFF OFF kbit/s OFF OFF kbit/s OFF kbit/s OFF OFF kbit/s OFF kbit/s OFF MBit/s Settings of user address for CANopen Z.P Z.P Bus cover for CANopen Bus cover for CANopen, stainless steel Example: User address

4 TM DeviceNet features DeviceNet Device profile Proposal: Device Profile for Encoders V. Operating modes I/O Polling, Cyclic and Change of State actual process value that corresponds to the defined axis position of the system. The offset value between the encoder zero point and the mechanical zero point of the system is saved in the encoder. Rotating direction With the operating parameter the rotating direction in which the Scaling - Position error Default setting kbit/s, Mac Id View inside DeviceNet bus cover DRAIN DRAIN Setting of terminating resistor for DeviceNet = Last User Setting DeviceNet Baud rate Settings of user address for DeviceNet Example: User address Baud rate Setting Dip Switch kbit/s X OFF OFF kbit/s X OFF kbit/s X OFF kbit/s* X X = no function * This switch setting is not defined, and is therefore set internally to the default value kbit/s. Z.P Bus cover for DeviceNet Z.P Bus cover for DeviceNet, stainless steel Contact description DeviceNet DRAIN CAN Bus Signal (dominant Low) CAN Bus Signal (dominant High) Shield contact Supply voltage... VDC Ground contact for

5 Bus Cover Description for Shaft Encoder LIGHTBUS features View inside LIGHTBUS bus cover, Beckhoff protocol Interface Beckhoff Lightbus, is transferred as MSB in bit data word Optical fiber transfer rate Up to. Mbaud Electromagnetic Fiber optics cables are protected coupling against all types of electromagnetic interference and can be installed without taking possible sources of interference into account. Receive Transmit LED status display: Green: Data transfer Red: Error Inputs/Outputs LIGHTBUS settings Optic fiber bus Power supply Housing Transmitter: Transmit data Receiver: Receive data Encoder supply connection Ground connection of encoder connected via screw terminals Optional: Connection for cable shield Switch : Rotating direction setting : R (CCW) decreasing code OFF: V (CW) increasing code Switch : Light transmission power : Increased light transmission power (... m) OFF: Standard light transmission power (up to m) Z.LM Bus cover for LIGHTBUS Order No. Z. Optic fiber bus connectors.. Installation instructions for optic fiber bus Suitable optical-fiber cable: LAPP-Kabel, Stuttgart, Art.: HITRIC POF SIMPLEX PUR-PE

6 SSI features View inside SSI bus cover Regardless of the encoder resolution, only lines are required for pulse and data transfer. Electrical isolation of the encoder from the controller with optocouplers. The controller pulses synchronize the data transfer between the encoder and the controller. During operation with several encoders, simultaneous saving of all encoder data is possible without an additional line. LED status display: Green: Ready for operation Red: Lights up for. s, Position error Yellow: Lithium cell voltage at lower limit SSI pulse frequency. khz... MHz Monoflop time µs Pulse pause µs Connection Assignment Inputs Plug Assignment -pin plug* -pin plug Pin Pulse+ Pin RxD Pulse - Pin Prog Data+ Pin B Data- Pin TxD Preset Pin UP/DOWN Pin B Pin * Programming interface Control signals Level High Level Low Connection: SSI UP/DOWN and Preset-In >. <. UP/DOWN-input with kohms against. Preset input with kohms against. Optocoupler input for electrical isolation Recommendation: Please use leads twisted in pairs for extension cables. Outputs Z.PA Bus cover for SSI SSI RS driver