Allen-Bradley Guardmaster, User Manual

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64 Rockwell Automation Publication 440R-UM013E-EN-P - March 2017
Chapter 11 Troubleshooting
Table 11 - PWR/Fault Status Indicator Is Flashing Red
Indicator Description Model Possible Causes Corrective Action
Flashing red
1 time
The GSR relay is in
configuration mode.
All
• The relay is shipped from the factory with no
configuration.
• The configuration process was not completed
successfully.
Continue with the configuration process. Rotate the switches to
the desired positions and cycle power.
Flashing red
2 times
Invalid configuration.
All
• Upon power-up, one or more of the rotary
switch settings do not agree with the value
that is stored in the EEPROM.
• Connections at S11 and S21 were swapped
after configuration.
• Return the switches/wiring to their proper settings/
terminals and cycle power.
(2)
• Reconfigure the safety relay.
EMD
A jumper was added from B1 to B2 after
configuration and power was later cycled.
Flashing red
3 times
Invalid configuration
on DI or DIS safety
relay.
DI, DIS
• During configuration, the Logic switch is set
for IN1 OR IN2 (position 1, 3, 5, or 7), but the
inputs are wired for safety mats.
• If the inputs are not closed during
configuration, the DI and DIS safety relays
show this fault on the next power cycle if the
inputs are closed.
• Reconfigure the relays for IN1 AND IN2 (position 2, 4, 6, or
8). See Configuration on page 35
• See additional information in Safety Mats on page 23 .
Flashing red
4 times
Cross fault.
All
• You modified the wiring after configuration.
• You wired up one or more input connections as
a safety mat. When you stepped on the mat,
the GSR relay went to fault mode.
• Check the wiring.
• Remove the short circuit and cycle the power.
• See additional information in Check Voltage-free Contacts
on page 67 .
CI, DI, DIS, and SI
• A short circuit occurred (and is no longer
present) or is present from S11 to S21.
• Excessive capacitance is detected on input
wiring to ground. The pulse tests waveform is
distorted.
Flashing red
5 times
Output test has failed
on L11.
CI
• A short circuit has occurred, or is present, from
+24V DC (A1) or S11 to L11.
• A short circuit has occurred, or is present, from
24V Common (A2) to L11when L11 is ON.
• Correct the fault and cycle power to the GSR relays.
• See additional information in Check the Single Wire Safety
Circuit (Step 4) on page 74 .
DI and DIS
• Short circuit from L11 to L12
• Short circuit from L11 to A1 on the next
downstream relay.
• The 24V common connection to the
downstream relay has temporarily
disconnected.
• One of the downstream relays exhibited a
momentary power interruption.
• For long SWS runs, L11 may be picking up
noise. Consider running the SWS signal in
shielded cable.
Flashing red
6 times
Output test has failed
on 14, 24
(1)
DIS
• External cross fault
• High capacitance load
• Check wiring.
• Remove fault or move high capacitance output connections
to 34, 44.
• Cycle power to clear the fault.
• See additional information in OSSD Outputs on page 26 .
(1) DIS safety relay only
(2) If you do not know the correct setting, you can rotate the switch to a new setting and cycle power. If the new setting does not agree with the EEPROM, the PWR/Fault indicator continues to flash 2X
red; make a new selection and cycle power again. If the new setting agrees with the EEPROM, the PWR/Fault indicator is solid green, the GSR relay functions properly.
TIP
Record the switch setting on
the front face. For example,
the logic setting is set to 3,
but it should be set to 4.