Siemens SIMOTRAS 6SG7050 - Procedure for Starting up the Pulse Encoder Board (SBP)

01.04 Start-up
SIEMENS AG 6SG7000-0BA76 7-51
SIMOTRAS HD Operating Instructions
7.10.6 Procedure for starting up the pulse encoder board (SBP)
1 Set the switches (for encoder supply and bus terminating resistors) on the SBP board:
If one
pulse encoder is connected to one SBP board, then the three switches for bus
terminating resistors must be switched to ON.
If one
pulse encoder is connected to several SBP boards, then the three switches for bus
terminating resistors must be switched to ON only on the last SBP.
The fourth switch connects and disconnects the supply voltage for the encoder. (Caution:
Switch open means supply voltage connected)
2 Disconnect power supply and insert adapter with board into location. Please remember to
insert a board in location 2 before you use location 3.
3 Connect the terminals on strips X400, X401 on the pulse encoder board to the appropriate
terminals on the encoder (for circuit example, refer to operating instructions for pulse
encoder board). When connecting unipolar signals, one earth connection for all signals on
terminal 75 (CTRL-) is sufficient. However, with very long cables or where there are high
levels of radiated noise, it is advisable to bridge terminals 69, 71 and 75 (A-, B- and CTRL-)
and connect them to the encoder ground. The zero track of the pulse encoder is not
evaluated by SIMOTRAS HD and need not therefore be connected.
The terminals designated coarse pulse1, coarse pulse2 and fine pulse2 can be used as
digital inputs for any function (see Function Diagrams in Section 8, Sheet Z120)
4 Please make the following settings:
- U790 Voltage level of inputs
0: HTL unipolar
1: TTL unipolar
2: HTL differential input
3: TTL/RS422 differential input
- U791 Level of encoder supply
0: 5V voltage supply
1: 15V voltage supply
- U792 Pulse encoder resolution
- U793 Type of pulse encoder
0: Encoder with A/B track (two tracks displaced by 90 degrees)
1: Encoder with separate forward and reverse track
- U794 Reference speed
(For further details, see Section 11, description of parameters U790- U794)
The pulse encoder board SBP (
Sensor Board Pulse) supports commercially available pulse
encoders with pulse frequencies up to 410kHz. The voltage level of the encoder signals can be
parameterized. TTL or HTL level pulses, bipolar or unipolar, can be used.
A voltage supply for 5V and 15V encoders is provided on the board.
Evaluation of a temperature sensor is not supported on SIMOTRAS HD 6SG70 converters.