Rockwell Automation 2198-Hxxx Kinetix 5500 Servo Drives User Manual - Manual (Page 164)

164 Rockwell Automation Publication 2198-UM001D-EN-P - May 2014
Chapter 9 Kinetix 5500 Safe Torque-off - Hardwired Safety
Safe Torque-off Feature The safe torque-off circuit, when used with suitable safety components, provides
protection according to EN ISO 13849 (PLd), Category 3 or according to
IEC EN 61508, EN 61800-5-2, and EN 62061 (SIL CL2). All components in
the system must be chosen and applied correctly to achieve the desired level of
operator safeguarding.
The safe torque-off circuit is designed to safely turn off all of the output-power
transistors. You can use the safe torque-off circuit in combination with other
safety devices to achieve the stop and protection-against-restart as specified in
IEC 60204-1.
The 2198-H
xxx-ERS drives do not operate without a safety circuit or safety
bypass wiring. For applications that do not require the safe torque-off feature you
must install jumper wires to bypass the safe torque-off circuitry.
Safe Torque-off Feature Bypass
Each Kinetix 5500 drive ships with one 10-pin wiring plug for wiring to safety
devices. To bypass the safety function, wire these signals as shown in
Figure 71 .
With the jumper wires installed, the safe-off feature is not used.
Figure 71 - Safe Torque-off Bypass Wiring
ATTENTION: This option is suitable only for performing mechanical work on
the drive system or affected area of a machine. It does not provide electrical
safety.
SHOCK HAZARD: In Safe Torque-off mode, hazardous voltages can still be
present at the drive. To avoid an electric shock hazard, disconnect power to the
system and verify that the voltage is zero before performing any work on the
drive.
Pin 1 SB+
SB-
S1
SC
S2