Internal faults - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 03.05.2023

REX610 Technical Manual

When an internal relay fault is detected, relay protection operation is disabled, the green Ready LED begins to flash and the self-supervision output contact is activated.

Note: Internal fault indications have the highest priority on the LHMI. None of the other LHMI indications can override the internal fault indication.

An indication about the fault is shown as a message on the LHMI. The text Internal Fault with an additional text message, a code, date and time, is shown to indicate the fault type.

Figure 1. Internal fault in LHMI self-supervision page
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If an internal fault disappears, the green Ready LED stops flashing and the protection relay returns to the normal service state. The fault indication message remains on the display until manually cleared.

The self-supervision signal output operates on the closed-circuit principle.

  • Normal conditions with empty application configuration
    • DIO2001 pins 16 and 17 are closed, pins 16 and 18 are open.
  • Normal conditions with application configuration
    • DIO2001 pins 16 and 17 are open, pins 16 and 18 are closed.
  • USB powered with or without application configuration
    • DIO2001 pins 16 and 17 are closed, pins 16 and 18 are open.
Figure 2. Output contact
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The internal fault code indicates the type of internal relay fault. When a fault appears, the code must be recorded so that it can be reported to ABB customer service.

The display code format for internal faults is aa.bb.cc.ddd.ee.

  • aa: Reserved for future
  • bb: Error domain
    • 1: HW error
    • 2: Runtime error
    • 3: Communication error
  • cc: Component
    • Range 0...11
  • ddd: Error category
  • ee: Offset
    • Range 0...255
Figure 3. Fault indication
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Table 1. Internal fault indications and codes

Fault indication

Error category

Additional information

File system error

7

A file system error has occurred

Test

8

Internal fault test activated by the user

USB powered

12

Device powered with USB

RAM error

80 1

Memory error

ROM error

81

Failure in internal NV memory

PSU traceability invalid

160

Invalid PSU card traceability data

DIO traceability invalid

161

Invalid DIO card traceability data

AIU traceability invalid

162

Invalid AIU card traceability data

AIC traceability invalid

163

Invalid AIC card traceability data

HMI traceability invalid

164

Invalid HMI card traceability data

Product traceability invalid

165

Invalid product traceability data

LHMI LCD error

166

Failure in LCD detection

ARC card error

170

Error in the ARC card

AIU card error

171

Error in the AIU card

DIO card error

172

Error in the DIO card

AIC card error

173

Error in the AIC card

Firmware update error

175 1

Software update failed

CPU exception

176 1

CPU exception

HW config mismatch

177

Mismatch between the HW configuration and the HW cards connected to the relay

System Boot up failure

179 1

Error during system bootup

HMI Card error

181

Error in the HMI card

RTC Error

182

Error in the RTC

Device Resource error

183

IRF triggered

One of the mandatory files missing

COM failure

184 1

COM failure

ADC Error

185 1

Analog samples missing

For further information on internal fault indications, see the operation manual.

1 Used for software simulation