68
P/N 133487
Banner Engineering Corp.
•
Minneapolis, U .S .A .
www .bannerengineering .com • Tel: 763 .544 .3164
SC22-3 Safety Controller
Instruction Manual
Troubleshooting and Maintenance
8.3.1 Troubleshooting Table
Fault Code
Displayed
Message
Additional
Message
Further Steps and Checks
0 .0
Input Fault
Cycle Input
Input fault detected momentarily .
• Check for unstable input signal
• Turn input OFF to clear the fault indication
1 .1
Output Fault
Check for shorts
A safety output appears ON at power-up when it should be OFF .
• Check for short to external voltage source .
1 .2
Output Fault
Check for shorts
A safety output is sensing a fault to another voltage source .
• Check for short between safety outputs .
• Check for short to external voltage source .
• Check load device compatibility (too much capacitance?) .
1 .3 – 1 .6
Internal Fault
Internal failure – Contact Banner Engineering .
1 .7
Output Fault
Check for shorts
An overload is detected on the safety outputs .
• Check each output terminal for a short to ground or overload condition (a fault
on only one output may cause other outputs to indicate a fault) .
• Verify system power supply rating with system load requirements .
1 .8
Internal Fault
Internal failure – Contact Banner Engineering .
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 wiring .
• Check input signals .
• Consider adjusting 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 wiring .
• Check 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 wiring .
• Check input signals .
• Check power supply providing input signals .
• Consider adjusting 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 wiring .
• Check input signal timing .
2 .7
Internal Fault
Check Terminal xx
Internal failure – Contact Banner Engineering .
2 .8 – 2 .9
Input Fault
Check Terminal xx
Input stuck high .
• Check for shorts to other inputs or other voltage source .
• Check input device compatibility .
2 .10
Input Fault
Check Terminal xx
• Check for short between inputs .
2 .11 - 2 .12
Input Fault
Check Terminal xx
• Check for short to ground .
2 .13
Input Fault
Check Terminal xx
Input stuck low .
• Check for short to ground .
2 .14
Input Fault
Check Terminal xx
Missing test pulses .
• Check for short to other inputs or other voltage source .
2 .15
Open Lead
Check Terminal xx
• Check for open lead .
2 .16 – 2 .18
Input Fault
Check Terminal xx
Missing test pulses .
• Check for short to other inputs or other voltage source .
