Fault Code
Displayed
Message
Additional
Message
Steps to resolve
2.1
Concurrency Fault
Cycle Input
On a dual-channel input with both inputs in the Run state, one input went to the Stop state
then back to Run:
•
Check the wiring
•
Check the input signals
•
Consider adjusting the debounce times
2.2
Simultaneity Fault
Cycle Input
On a dual-channel input, one input went into the Run state but the other input did not
follow within 3 seconds:
•
Check the wiring
•
Check the input signal timing
2.3 or 2.5
Concurrency Fault
Cycle Input
On a complementary pair with both inputs in the Run state, one of the inputs changed to
Stop then back to Run:
•
Check the wiring
•
Check the input signals
•
Check the power supply providing input signals
•
Consider adjusting the debounce times
2.4 or 2.6
Simultaneity Fault
Cycle Input
On a complementary pair, one input went into the Run state but the other input did not
follow within the time limit:
•
Check the wiring
•
Check the input signal timing
2.7
Internal Fault
Check Terminal
xx
Internal failure—Contact Banner Engineering (see
Repairs and Warranty Service Repairs
on page 111)
2.8 – 2.9
Input Fault
Check Terminal
xx
Input stuck high:
•
Check for shorts to other inputs or other voltage sources
•
Check the input device compatibility
2.10
Input Fault
Check Terminal
xx
•
Check for a short between inputs
2.11 - 2.12
Input Fault
Check Terminal
xx
•
Check for a short to ground
2.13
Input Fault
Check Terminal
xx
Input stuck low
•
Check for a short to ground
2.14
Input Fault
Check Terminal
xx
Missing test pulses:
•
Check for a short to other inputs or other voltage sources
2.15
Open Lead
Check Terminal
xx
•
Check for an open lead
2.16 – 2.18
Input Fault
Check Terminal
xx
Missing test pulses:
•
Check for a short to other inputs or other voltage sources
2.19
Open Lead
Check Terminal
xx
•
Check for an open lead
2.20
Input Fault
Check Terminal
xx
Missing test pulses:
•
Check for a short to ground
2.21
Open Lead
Check Terminal
xx
•
Check for an open lead
2.22 – 2.23
Input Fault
Check Terminal
xx
•
Check for an unstable signal on the input
2.24
Input Activated
While Bypassed
Perform System
Reset
A Two-Hand Control input was activated (turned On) while it was bypassed.
2.25
Input Fault
Monitoring
Timer Expired
Before AVM
Closed
After the associated Safety Output turned Off, the AVM input did not close before its AVM
monitoring time expired:
•
The AVM may be disconnected. Check the wiring to the AVM
•
Either the AVM is disconnected, or its response to the Safety Output turning Off is
too slow
•
Check the wiring to the AVM
•
Check the timing setting; increase the setting if necessary
•
Contact Banner Engineering
2.26
Input Fault
AVM Not Closed
When Output
Turned On
The AVM input was open, but should have been closed, when the associated Safety Output
was commanded On:
•
The AVM may be disconnected. Check the wiring to the AVM
3.1
EDMxx Fault
Check Terminal
xx
EDM contact opened prior to turning On the Safety Outputs:
•
Check for a stuck On contactor or relay
•
Check for an open wire
XS/SC26-2 Safety Controller
109
