Introduction

Safe Stop Mode

Chapter

6

Safe Stop and Safe Stop with Door Monitoring

Modes

This chapter describes the Safe Stop modes of safety operation and provides a list of configuration parameters as well as wiring examples for each Safe Stop mode.

Topic

Safe Stop Mode

Safe Stop Parameter List

Safe Stop Wiring Example

Safe Stop with Door Monitoring Mode

Safe Stop with Door Monitoring Parameter List

Safe Stop with Door Monitoring Wiring Example

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When properly configured for Safe Stop, the relay monitors the Safe

Stop input (SS_In) and initiates the configured Safe Stop Type upon deactivation of the input. The Safe Stop Type is configurable as either

Safe Torque Off with or without Standstill Checking, Safe Stop 1, or

Safe Stop 2. The relay recognizes motion as stopped when the encoder 1 feedback signals indicate the system has reached the configured Standstill Speed. Once Standstill Speed has been reached, the Door Control output (DC_Out) is set to Unlock.

In addition to setting the Standstill Speed, you configure both the Stop

Delay [Max Stop Time], the period during which deceleration occurs after a Safe Stop is initiated, and an optional Stop Monitoring Delay

[Stop Mon Delay], which is a delay between the action that requests the Safe Stop and the initiation of the configured Safe Stop Type. A

Stop Monitoring Delay can only be configured for Safe Stop 1 or Safe

Stop 2.

When properly configured for Safe Stop mode, the relay also monitors for faults and initiates the appropriate reaction. If the fault is a Safe

State Fault, the relay enters the Safe State. If the fault is a Stop

Category Fault, the relay initiates the configured Safe Stop Type.

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