Efficient Networks S120 Acknowledging the safety faults, Stop response Action Effect Triggered

Safety Integrated basic functions

9.7 Commissioning the "STO", "SBC" and "SS1" functions

Stop response Action Effect Triggered ...

STOP A is identical to stop Category 0 to EN 60204-1.

With STOP A, the motor is switched directly to zero torque via the "Safe torque off (STO)" function.

A motor at standstill cannot be started again accidentally.

A moving motor coasts to standstill. This can be prevented by using external braking mechanisms (e.g. armature short-circuiting, holding or operational brake).

	When STOP A is present, "Safe torque off (STO)" is effective.
STOP F	Transition to STOP A.	None1)	If an error occurs in the
			crosswise data
			comparison.

STOP F is permanently assigned to the crosswise data comparison (CDC). In this way, errors are detected in the monitoring channels.

After STOP F, STOP A is triggered.

When STOP A is present, "Safe torque off (STO)" is effective.

1)If STOP F is output by the crosswise data comparison of the two input signals when the "Safe

torque off" function is selected, this means that the pulses have already been canceled when "Safe torque off" was selected on one channel.

WARNING

With a vertical axis or pulling load, there is a risk of uncontrolled axis movements when STOP A/F is triggered. This can be prevented by using "Safe brake control (SBC)" and a holding brake with sufficient retention force (non-safe).

Acknowledging the safety faults

Safety Integrated faults must be acknowledged as follows:

1.Remove the cause of the fault.

2.Deselect "Safe Torque Off (STO)".

3.Acknowledge the fault.

If safety commissioning mode is exited when the safety functions are switched off (p0010 = value not equal to 95 when p9601 = p9801 = 0), all the safety faults can be acknowledged.

Once safety commissioning mode has been reset (p0010 = 95), all the faults that were previously present reappear.

NOTICE

The safety faults can also be acknowledged (as with all other faults) by switching the drive unit off and then on again (POWER ON).

If this action has not eliminated the fault cause, the fault is displayed again immediately after power up.

324	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4