Manual Reset of Safety Outputs
Sets the Output to On if the Output Block configured for Latch Reset is On.
Exceptions:
•
A Safety Output cannot be configured to use a Manual Reset when associated with a Two Hand Control
input or an Enabling Device Function Block.
System Fault Reset
Sets the System to a Run state from a Lockout state due to a system fault. Possible scenarios when System Fault
Reset is needed include:
•
Signals are detected on unused terminal pins
•
Configuration Mode timeout
•
Internal faults
Output Fault Reset
Clears the fault and allows the output to turn back On if the cause of the fault has been removed. Possible
scenarios when an Output Fault Reset is needed include:
•
Output faults
•
EDM or AVM faults
Manual Reset on Power-Up
Allows various Latch Reset Blocks and/or Output Blocks to be controlled by a single reset input after the power up.
Enable Mode Exit
A reset is required to exit the Enable Mode.
Track Input Group Reset
Resets the Status Output function Track Input Group and the Virtual Status Output function Track Input Group
The reset switch must be mounted at a location that complies with the warning below. A key-actuated reset
switch provides some operator or supervisory control, as the key can be removed from the switch and taken into the
guarded area. However, this does not prevent from any unauthorized or inadvertent resets due to spare keys being in the
possession of others, or additional personnel entering the guarded area unnoticed (a pass-through hazard).
WARNING: Reset Switch Location
All reset switches must be accessible only from outside, and in full view of, the hazardous
area. Reset switches must also be out of reach from within the safeguarded space, and must
be protected against unauthorized or inadvertent operation (for example, through the use of
rings or guards). If any areas are not visible from the reset switch(es), additional means of
safeguarding must be provided. Failure to do so may result in serious bodily injury or death.
Important: Resetting a safeguard must not initiate hazardous motion. Safe work procedures require a
start-up procedure to be followed and the individual performing the reset to verify that the entire
hazardous area is clear of all personnel before each reset of the safeguard is performed. If any
area cannot be observed from the reset switch location, additional supplemental safeguarding must be
used: at a minimum, visual and audible warnings of the machine start-up.
NOTE: Automatic Reset sets an output to return to an On state without action by an individual once
the input device(s) changes to the Run state and all other logic blocks are in their Run state. Also
known as "Trip mode," automatic reset is typically used in applications in which the individual is
continually being sensed by the safety input device.
WARNING: Automatic Power Up
On power up, the Safety Outputs and Latch Reset Blocks configured for automatic power up will turn
their outputs On if all associated inputs are in the Run state. If manual reset is required, configure
outputs for a manual power mode.
Automatic and Manual Reset Inputs Mapped to the Same Safety Output
By default, Safety Outputs are configured for the automatic reset (trip mode). They can be configured as a Latch Reset
using the Solid State Output Properties attribute of the Safety Output (see
on page 26).
Safety Input Devices operate as automatic reset unless a Latch Reset Block is added. If a Latch Reset Block is added in line
with an output configured for Latch Reset mode, the same or different Manual Reset Input Device(s) may be used to reset
the Latch Reset Block and the Safety Output latch. If the same Manual Reset Input Device is used for both, and all inputs
are in their Run state, a single reset action will unlatch the function block and the output block. If different Manual Reset
Input Devices are used, the reset associated with the Safety Output must be the last one activated. This can be used to
XS/SC26-2 Safety Controller
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Содержание SC26-2 Series
Страница 1: ...XS SC26 2 Safety Controller Instruction Manual Original Instructions 174868 Rev E 20 June 2014 174868 ...
Страница 58: ...Figure 49 Run Time Equipment view Figure 50 Run Time Functional View XS SC26 2 Safety Controller 58 ...
Страница 62: ...Figure 54 Sample Configuration Functional View XS SC26 2 Safety Controller 62 ...