Owner manual

126 Rockwell Automation Publication 1756-UM022A-EN-P - November 2012
Appendix A Status Indicators
The safety partner has an OK status indicator.
Controller Status Display
The controller status display scrolls messages that provide information about the
controller’s firmware revision, energy storage module (ESM) status, project
status, and major faults.
Safety Status Messages
The primary controller display may show the following messages. The safety
partner displays ‘L7SP’.
General Status Messages
The messages described in Ta b l e 46 are typically indicated upon powerup,
powerdown, and while the controller is running. These messages indicate the
status of the controller and the ESM.
Table 44 - 1756-L7SP Status Indicator
Indicator Status Description
OK Off No power is applied.
Green The safety partner is operating with no faults.
Red Powering up or nonrecoverable controller fault.
Table 45 - Safety Status Display
Message Interpretation
No Safety Signature Safety Task is in Run mode without a safety task signature.
Safety Partner Missing The safety partner is missing or unavailable.
Hardware Incompatible The safety partner and primary controller hardware is incompatible.
Firmware Incompatible The safety partner and primary controller firmware revision levels are incompatible.
No CST Master A coordinated system time (CST) master has not been found
Safety Task Inoperable The safety logic is invalid. For example, a mismatch occurred between the primary
controller and the safety partner, a watchdog timeout occurred, or memory is corrupt.
Safety Unlocked The controller is in Run mode with a safety signature, but is not safety-locked.
Table 46 - General Status Display
Message Interpretation
No message is indicated The controller is off, or a major nonrecoverable fault (MNRF) has occurred.
Check the OK indicator to determine if the controller is powered and determine the state of the controller.
TEST Power-up tests are being conducted by the controller.
PASS Power-up tests have been successfully completed.
SAVE A project is being saved to the SD card at powerdown. You can also view the SD Indicator (see page 125) for additional status information.
Allow the save to complete before removing the SD card or disconnecting power.