Eaton ESR5-NO-21-24VAC-DC, Manual

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6 Diagnostics
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ESR5-NO-21-24VAC-DC 12/19 MN049007EN www.eaton.com
6 Diagnostics
○ – LED o ff
● – LED on
Table 1: Diagnostic description
Power IN1/2 K1 K2 Fault Remedy
Connection/
voltage error
○ ○ ○ ○ Supply voltage not present. Apply supply voltage.
● ● ○ ● Supply voltage too low. Adjust supply voltage.
Cross-circuit ○ ○ ○ ○
Between both enable circuits S11- S12 and
S21-S22.
E.g., for emergency stop.
Remove cross-circuit.
Short circuit
○ ○ ○ ○ Between contact points A1 and A2.
Remove short circuit.
● ● ● ○
Between S11 and S12.
Fault detection on next demand.
● ● ○ ●
Between S21 and S22.
Fault detection on next demand.
Fault with
internal cause
● ● ○ ● Enable contact(s) of K1 faulty.
Replace safety relays. ● ● ● ○ Enable contact(s) of K2 faulty.
● ● ○ ○ Enable contact(s) of K1 and K2 faulty.