Response time - demand of the safety function – Rockwell Automation 440C Guardmaster 440C-CR30 Configurable Safety Relay User Manual User Manual

Page 125

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Rockwell Automation Publication 440C-UM001C-EN-P - November 2014

125

Specifications

Appendix A

Response Time - Demand of the Safety Function

The safety response time of CR30 is the screw-to-screw response time to turn off
a safety output at demand of the safety function by the safety input device. The
safety response has to be calculated for each safety monitoring function.

Table 21

shows the possible safety chain with all considerable response times.

Table 21 - Safety Chain Response Times

Table 22

shows the additional processing time of dedicated SMF

Table 22 - Processing Time

Description

Where to find:

Value

Safety Sensors

Safety response time of sensor device

Sensor operating manual

SMF

Specific Processing time of safety
monitoring function configured in CCW

Below table of specific SMF processing
times

Input Filter

Configured Input Filter time

From SMF configuration “advanced
settings”

(2)

(2) The maximum input filter time shall not be greater than 250 ms.

Logic

Internal execution time to process input
signal, routing and output processing

(1)

(1) The internal execution time is static and independent of the number of function blocks that are configured for the safety function.

From technical specification

45 ms

SOF

Configured Off-Delay time

From SOF configuration

Actuator

Safety switching device controlling the
load

Actuator operating manual

Total

SMF

Description

SMF response time

Emergency Stop

SMF inputs deactivated

0 ms

Enabling Switch

Gate Switch

Light Curtain

Alternative Device

Muting

N/A

0 ms

Light Curtain

Light interrupted, not muted

0 ms

Override

Deactivate Override when light
curtain is interrupted

0 ms

Safety Mats

Step on Mat, cross loop between
safety mat inputs

25 ms

Single Wire Safety

Deactivated SWS signal

15 ms

Two Hand Control

Release of at least 1 Hand actuator

0 ms

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