10
P/N 133487
Banner Engineering Corp.
•
Minneapolis, U .S .A .
www .bannerengineering .com • Tel: 763 .544 .3164
SC22-3 Safety Controller
Instruction Manual
Overview
1.6 System Settings
The Controller’s system settings define parameters for both the
configuration file and the Controller . These settings include:
• Configuration name
• Author’s name
• Power-up mode
• Mute on power-up enable
• Monitored system reset
Configuration Name
The configuration name identifies the configuration that will be
used in a Safety Controller application . The configuration name
can be displayed on the Controller and will be useful to be sure
that the configuration in a Controller is the correct one .
Author’s Name
The author’s name may also be helpful when questions arise
about configuration settings .
Power-Up Mode
(Operational Characteristics When Power Is Applied)
The Controller provides three power-up mode types to choose
from, to determine how the Controller will behave just after
power is supplied . These modes are: Normal, Automatic, and
Manual .
• Normal Power-Up Mode (default). In normal power-up
mode, after power is applied:
— Only those safety outputs that have automatic reset inputs
will turn ON .
— Safety outputs that have one or more manual reset inputs
will turn ON only after a manual (latch) reset operation is
performed .
— Exception: Two-hand control inputs, bypass inputs, and
enabling device inputs must be seen to be in the Stop
state at power-up, regardless of the power-up mode
selection . If these are seen to be in the Run state at
power-up, the outputs will remain OFF .
• Automatic Power-Up Mode. In automatic power-up mode,
after power is applied:
— All safety outputs will turn ON immediately if the inputs
that are mapped to these outputs are all in the Run state .
— Exception: Two-hand control inputs, bypass inputs, and
enabling device inputs must be seen to be in the Stop
state at power-up, regardless of the power-up mode
selection . If these are seen to be in the Run state at
power-up, the outputs will remain OFF .
CAUTION . . .
Automatic Power-Up
When the Controller is configured for automatic
system reset power-up mode, the Controller acts as
if all input devices are configured for auto (trip) reset . Each safety
output will immediately turn on at power-up if the assigned
input devices are all in the Run state, even if one or more
of the input devices is configured for manual (latch) reset. If
the application requires that a manual (latch) reset operation be
performed before the safety output turns ON, then either manual or
normal power-up mode configuration must be used . Failure to do
so could cause a machine to operate in an unexpected way at
power-up or after temporary power interruptions.
• Manual Power-up Mode. In Manual Power-up Mode, after
power is applied:
— Safety outputs will turn ON only after all inputs mapped
to this output are in the Run state and a System
Reset has been performed. (A manual latch reset is not
required .)
— Exception: Two-hand control inputs, bypass inputs, and
enabling device inputs must be seen to be in the Stop
state at power-up, regardless of the power-up mode
selection . If these are seen to be in the Run state at
power up, the outputs will remain OFF .
Mute on Power-Up Enable
If configured, the Mute on Power-Up function will initiate a mute
cycle after power is applied to the SC22-3 if the muted safety
inputs are active (Run state or closed), and either M1-M2 or M3-
M4 (but not all four) are signaling a muted condition (e .g ., active
or closed) . (See Section 3 .5 .4 .)
CAUTION . . .
Controller Operation
on Power-Up
It is the responsibility of the person who
configures, installs, and/or maintains the Controller to
assess what safeguarding devices and methods are
appropriate for any given machine or application and to be
aware that the power-up behavior of this Controller may not
be obvious to the machine operator .
Monitored System Reset
Monitored System Reset is enabled by default and requires an
OFF-ON-OFF signal at the reset input, where the ON-duration
must be between 0 .3 and 2 seconds (trailing edge reset), in
order to reset the system .
If unchecked (Monitored System Reset disabled), the reset input
requires only a signal from OFF to ON (leading edge reset), in
order to reset the system .
