Verify operation – Rockwell Automation 21G PowerFlex 750 Series Safe Torque Off User Manual
Page 25
Rockwell Automation Publication 750-UM002F-EN-P - July 2013
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Installation and Wiring
Chapter 3
Port Assignment
• When used in an Integrated Motion application, the Safe Torque Off
option must be installed in port 6.
• Only one safety option module can be installed at a time. Multiple safety
options or duplicate safety option installations are not supported.
Jumper Settings
• Ensure the hardware enable jumper (ENABLE) on the main control board
is installed. Refer to
for location. If not installed, the drive will
fault when powered up.
• Ensure the safety enable jumper (SAFETY) on the main control board is
removed (Frames 1…7 only). Refer to
for location.
Verify Operation
Test the safety function for proper operation after initial installation of the Safe
Torque Off option module. Retest the safety function at the intervals determined
by the safety analysis described on
Verify that both safety channels are functioning according to
Table 3
.
Table 3 - Channel Operation and Verification
Safety Function Status
Drive In
Not Enabled
State
Drive In
Not Enabled
State
Drive In
Not Enabled
State
Drive Able
To Run (Ready)
Safety Channel Operation
Safe Torque Off Option
Terminals SP+ & SP-
(Safety Power)
No Power Applied
Power Applied
No Power Applied
Power Applied
Safe Torque Off Option
Terminals SE+ & SE-
(Safety Enable)
No Power Applied
No Power Applied
Power Applied
Power Applied
IMPORTANT
If an external fault is present on the wiring or circuitry controlling the Safety
Enable or Safety Power inputs for a period of time, the Safe Torque Off option
will not detect this condition. When the external fault condition is removed the
Safe Torque Off option will allow an enable condition.
To achieve maximum safety rating, both safety inputs SP and SE must be
activated by appropriate dual channel equipment. The repeated activation of
the safety function by only one input at a time may result in a spurious
detection of a fault.
TIP
No tell back contact for status is provided on the Safe Torque Off option.