6 Diagnostics
10
ESR5-BWS-31-24VAC-DC
12/19 MN049005EN
www.eaton.com
6 Diagnostics
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– LED o
ff
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– LED on
Table 1: Diagnostic description
Power
K1
K2
Fault
Remedy
Connection/
voltage error
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Supply voltage not present.
Apply supply voltage.
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Supply voltage too low.
Adjust supply voltage.
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●
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The enable circuits are connected incorrectly
or not connected at all.
Check the connection of the enable
circuits.
Cross-circuit
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Between both enable circuits S11- S12 and
S11-S22.
Error detection on next demand.
E.g., for emergency stop or safety door.
Remove cross-circuit.
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Between both enable circuits S11- S22 and
S11-S12.
Error detection on next demand.
E.g., for emergency stop or safety door.
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Between both enable circuits S12 and S22.
The fault is not detected by the module itself.
E.g., for light grid type 4.
Short circuit
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Between contact points A1 and A2.
Remove short circuit.
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Between S11 and S12.
Fault detection on next demand.
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Between S11 and S22.
Fault detection on next demand.
Fault in reset
circuit
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Faulty reset button.
Short circuit between S33 and S34.
No fault detection on initial start, only on first
new demand.
Remove short circuit.
Fault with
internal
cause
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Enable contact(s) of K1 faulty.
Replace safety relays.
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Enable contact(s) of K2 faulty.
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Enable contact(s) of K1 and K2 faulty.
