Siemens SIMOTRAS 6SG7050, Operating Instructions Manual

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01.04 Function diagrams
SIEMENS AG 6SG7000-0BA76
8-135
SIMOTRAS HD Operating Instructions
Drive-specific (crane) control, Sheets K1 to K18
see also Section 6.1
The drive-specific (crane) control is made up of the freely-assignable function blocks (S00 technology
software, Sheets B100 to B216). In the factory settings for the relevant parameters, these function blocks are
connected to the drive-specific (crane) controls.
Explanations
for Sheet K4, control word 1 and Sheet K5, control word 2
The control signals are assigned via the binector/connector and the connector/binector converters. The
assignment should not be changed as technology boards are being used. Depending on the "control by PLC"
bit (binector B3110), the sources for the two control words are selected automatically.
for Sheet K6, transmit data
Status word 1 is assigned by default to the actual speed value. The signals generated in the internal drive
control unit for the technology board and the PLC are transmitted in status word 2.
for Sheet K8, enable, overload lifting gear
The "mechanical stop" signal (emergency stop, centrifugal switch, emergency limit switch) immediately
disables the controller and firing pulse. This terminal signal also needs to be connected during operation via
the interface in order to switch the converter off if it is no longer reacting to the interface signals.
On lifting gear drives, a measurement device is used to monitor the permissible load to be lifted and to
prevent an overload being lifted. If an overload occurs, the status is saved. If the overload is lowered, the
master switch will be in the zero position (no travel command) and the brake is closed, the saved overload
signal is acknowledged automatically.
for Sheet K9, travel command, electrical stop, overtemperature
The travel command is enabled in direction 1 if the limit switch in this direction is not being approached, or if,
in addition, there is no overload for lifting gear.
The travel command is enabled in direction 2 if the limit switch in this direction is not being approached.
Overtemperature in the machine, motor, activation of the fan monitor or a LOW signal on the binary input
"electrical stop" (motor fan, thermistor relay protective switches) disables the general travel command. This
cancels the speed setpoint, slows the drive electrically and closes the brake. Acknowledgement is only
possible once the fault has been eliminated; an alarm message is displayed at the same time
for Sheet K10, brake control
A travel command is issued by activating the master switch, the converter is enabled (enabling of speed
control, firing pulse) and the ‘Release brake’ signal is issued. Enabling of the setpoint can be delayed to
prevent movement against the brake, which will still be closed for a time. The drive then accelerates to the
specified speed setpoint.
If the master switch is returned to the zero position, the drive is delayed and closes the brake with the zero
speed signal. The firing pulses are disabled after the delay period for the controller disable has elapsed.