9
Functional safety
Connection variants
Operating Instructions – MOVIDRIVE
®
modular
259
9.4 Connection variants
9.4.1 General information
Generally, all the connection variants listed in this documentation are permitted for
safety-relevant applications as long as the basic safety concept is met. This means
you have to make sure that the DC 24 V safety inputs are operated by an external
safety relay or a safety controller, thus preventing an automatic restart.
All safety conditions mentioned in chapter "Integrated Safety Technology"(→2249),
"Safety Conditions" (→2 254) and "Connection variants" must be met for the basic
selection, installation, and application of the safety components, such as safety relay,
emergency stop switch, etc., and the approved connection variants.
The wiring diagrams are block diagrams whose only purpose is to show the drive
safety function(s) with the relevant components. For reasons of clarity, circuit-related
measures that usually always have to be implemented are not shown in the diagram.
These measures are e.g.:
• Ensuring touch guards.
• Handling overvoltages and undervoltages.
• Avoiding installation errors.
• Detecting ground faults or short circuits in externally installed lines.
• Guaranteeing the required interference immunity against electromagnetic interfer-
ence.
Connection X6 at the application inverter
The following figure shows the X6 terminal at the top of the axis modules.
Single-axis module Double-axis module
[1]
X30 IN X30 OUT
X6_1 X6_2
1
2
3
4
5
1
2
3
4
5
[1] X6: Connection for safe disconnection (STO)
24748536/EN – 11/2017
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