3 status outputs, Signal convention, Monitored mute lamp outputs – Banner SC22-3E Safety Controller with Ethernet User Manual
Page 17: 4 virtual status outputs
2.6.3 Status Outputs
The Safety Controller has 10 configurable Status Outputs, used to send non-safety status signals to programmable logic controllers
(PLCs) or to human machine interfaces (HMIs), or they may be used to power indicator lights. These outputs can be configured to report
on the status of input devices, Safety Outputs, or the Controller itself. See section
4.8.1 Status Output Signal Conventions
on page 50
for more information.
Signal Convention
The Status Output signal convention can be configured to be 24V dc or 0V dc to indicate:
• When an input is in the Run state,
• When a Safety Output is in the ON state (see Note 1),
• When a Safety Output is in a logical ON state (ON or in an ON-delay; see Note 1),
• When the system is in a Lockout condition,
• When an I/O fault is present (see Note 2),
• When a system reset is needed,
• When a Safety Output needs a reset (see Note 3),
• When a Safety Input is muted,
• Which Safety Input, of a defined group of Safety Inputs, turned OFF first,
• When a Safety Input is bypassed,
• When a Safety Input has a Fault condition, or
• When a Safety Output's OFF-delay can be cancelled.
NOTES:
1. Only Safety Outputs that have inputs mapped to them can be mapped to a Status Output.
2. An I/O fault is a failure of one or more Safety Inputs, Safety Outputs, or Status Outputs.
3. Only Safety Outputs mapped to inputs configured with manual reset logic can have a Status Output configured to indicate a reset is
needed.
WARNING: . . . Status Outputs
The Status Outputs are not Safety Outputs and can fail in either the ON or OFF state. They must never be used to control
any safety-critical applications. If a Status Output is used to control a safety-critical application, a failure to danger
is possible and could lead to serious injury or death.
Monitored Mute Lamp Outputs
Status Outputs O9 and O10 can be configured to create a monitored mute lamp function for a mute operation. When the mute lamp is
ON, the Controller monitors for a short circuit in the load. When the lamp is OFF, it monitors for an open circuit in the load. If an open
circuit occurs before the start of a mute cycle, the next mute cycle will be prevented. If an open circuit occurs during a mute cycle, that
mute cycle will finish, but the next mute cycle will be prevented. If a short occurs before or during a mute, that mute cycle will start and
finish, but the next mute cycle will be prevented. If not used to monitor a mute lamp, these outputs may be used in the same ways as
outputs O1–O8.
IMPORTANT: Only terminals O9 and O10 have the extra monitoring circuitry needed for a monitored mute lamp. If monitoring of
the mute lamp is not required (depending on applicable standards), any of the Status Outputs (O1–O10) may be used to indicate a mute
condition. Because of this feature, these Status Outputs will always appear ON with no load (see
2.6.4 Virtual Status Outputs
Using the PCI, the model SC22-3E (only) can configure up to 32 Virtual Status Outputs. These outputs can communicate the same
information as the Status Outputs, but over a network.
SC22-3/-3E Safety Controller Instruction Manual
P/N 133487 rev. C
www.bannerengineering.com - tel: 763-544-3164
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