Rockwell Automation T3464 ICS Regent AC Guarded Digital Output Module - Manual (Page 20)

AC Guarded Digital Output Module (T3464)
2 0
Industrial Control Services
Table 4. Operating Diagnostic Messages.
Display Description
AC AC quality problem (i.e. frequency is out of tolerance, frequency
is unstable, or phase difference between output groups 1-8 and
9-16).
AC.ab AC power failure at field terminals A/B (output group 1-8).
AC.cd AC power failure at field terminals C/D (output group 9-16).
Shud Outputs are shut down (off). Caused by the loss of controller
communications or the module is not configured in the system.
Hold Outputs are held at last state. Caused by the loss of controller
communications.
BFnn Blown fuse on output nn.
OLnn Open load on output nn. Displayed only when output is on.
OCnn Open circuit on output nn. Switch is not able to close.
SCnn Short circuit on output nn. Switch is not able to open. The
crowbar switch was activated to blow the fuse. Blown fuse
message is suppressed.
Safety Considerations
Although the AC Guarded output modules provide extensive
diagnostics and testing features, they have only been TÜV
certified to Risk Class 5 as non-interfering. For safety
systems that require TÜV approved equipment, the T3484
Monitored Guarded output module is recommended.
Specifications
Safetybus Power 1.5 load units
Number of Inputs 16 circuits divided into two
groups of eight
Voltage Range 90 to 130 VAC
Frequency Range 47 to 63 Hz
Phase Difference 1º maximum between group
1-8 and group 9-16