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OTIS 506 NCE/NCT Escalator/Travolator Quick Reference Display Code

Fault Code

EMERG.STOP START ACC OPER INSTRUCT HANDRAIL ENTRY START ACC OPER INSTRUCT OTIS GR3

S25/S26

OTIS GR4 (Upper Landing switches)

OTIS GR5 (Lower Landing switches)

OTIS GR6

OTIS B25 OTIS B26 OTIS S05 OTIS S06 OTIS B2 OTIS J OTIS NRD OTIS E12 OTIS E11 OTIS E14 OTIS E15 OTIS E16 OTIS E17 OTIS E18 OTIS E19 OTIS E20 OTIS E21 OTIS E22 OTIS S53 OTIS E26/E27

Reference

Emergency Stop Button upper or lower landing S21/S22 Handrail Entry switches right/left lower S23/S24 Handrail Entry switches right/left upper F3 Safety Circuit Fuse (ECB F1) S27 Governor Overspeed Switch S28 Broken Drive Chain Switch NRD Non Reversal Device S1 Left Hand Comb S2 Right Hand Comb S3 Left Hand Skirt Panel S4 Right Hand Skirt Panel S10/S64 Broken Step or Pallet S94 Right Hand Chain Wheel S95 Left Hand Chain Wheel S14 Right Hand Broken Step Chain S15 Left Hand Broken Step Chain S16 Left Hand Comb S17 Right Hand Comb S18 Right Hand Skirt Panel S19 Left Hand Skirt Panel S20/S65 Broken Step or Pallet S45 Left Hand Broken Handrail S46 Right Hand Broken Handrail Q3 Stop Switch (Pit) ASN Phase Device (low or reverse phase) B2 Motor Thermic Device S33 L/H Brake lifted contact S34 R/H Brake lifted contact Missing Step/Pallet upper landing Missing Step Pallet lower landing Floorplate upper landing Floorplate lower landing Motor Temperature contact Phase Reversal Non-reversal device – ECB Up & Down at same time – logic error No Up or Down while running – logic error KSU (Keyswitch Up) or KSD (Keyswitch Down) while on INS KSU signal & D relay or KSD & U relay Power fail 24V (VRS) KSU/D longer than 10 seconds Handrail slip right Handrail slip left Right Handrail slip LOCKED fault – too many slip errors Left Handrail slip LOCKED fault – too many slip errors No run signal within 2 seconds of KSU or KSD Emergency brake switch No Up/No Down – Check ECB on board relays.

LED’s on ECB Controller Name LED No.

State

1 2 3

NRD1 sensor NRD2 sensor Delta contactor

8

Remote Serial Link VLC - Voltage Level Converter

9

LED No. 4 5

Name (LED 4 OFF) Failure Operating Mode

6

Up

7

Down

LED No. 4

Name (LED 4 ON) Failure

5

Safety circuit

6

ECB

7

RSR4 contacts

on on on off blink off on off State

Description Machine running - NRD1 relay ‘in’ Machine running - NRD2 relay ‘in’ Delta operation - YD relay ‘in’ Star operation - YD relay ‘out’ RSL communication OK RSL communication stopped ECB supply OK No supply or reset

off on off blink blink on blink on

Failure (LED’s 5, 6 & 7 change function if LED 4 ON) Off indicates no failures Maintenance operation Continuous operation Intermittent operation Up selected - no start Up contactor, K1, active Down selected - no start Down contactor, K2, active

State

Failure

on blink off on off on off on

Not manual reset fault Manual reset fault – ECB Electrically Locked Safety contacts at RSFF OK Safety contact at RSFF open No failure on ECB ECB failure RSR4 contacts OK RSR4 contacts faulty

Relay No.

Name

Function

REL1

READY

REL2

UP

REL3

DOWN

Down direction relay

REL4

CHECK

Checks that UP, DOWN, READY, NRD1, NRD2, EOK and main motor contactors have dropped prior to starting

REL5

NRD1

Non Reverse Device - channel 1 OK

REL6

NRD2

Non Reverse Device - channel 2 OK

REL7

YD

Star-Delta contactor - YD in for Delta operation

REL8

EOK

Electronics OK - ECB, RSFF and RS4R all OK

REL9

GO

Maintains the UP or Down relays after starting Up direction relay

Controls main motor contactors

OTIS 506 NCE/NCT Escalator/Travolator Quick Reference Display Code

Fault Code

EMERG.STOP START ACC OPER INSTRUCT HANDRAIL ENTRY START ACC OPER INSTRUCT OTIS GR3

S25/S26

OTIS GR4 (Upper Landing switches)

OTIS GR5 (Lower Landing switches)

OTIS GR6

OTIS B25 OTIS B26 OTIS S05 OTIS S06 OTIS B2 OTIS J OTIS NRD OTIS E12 OTIS E11 OTIS E14 OTIS E15 OTIS E16 OTIS E17 OTIS E18 OTIS E19 OTIS E20 OTIS E21 OTIS E22 OTIS S53 OTIS E26/E27

Reference

Emergency Stop Button upper or lower landing S21/S22 Handrail Entry switches right/left lower S23/S24 Handrail Entry switches right/left upper F3 Safety Circuit Fuse (ECB F1) S27 Governor Overspeed Switch S28 Broken Drive Chain Switch NRD Non Reversal Device S1 Left Hand Comb S2 Right Hand Comb S3 Left Hand Skirt Panel S4 Right Hand Skirt Panel S10/S64 Broken Step or Pallet S94 Right Hand Chain Wheel S95 Left Hand Chain Wheel S14 Right Hand Broken Step Chain S15 Left Hand Broken Step Chain S16 Left Hand Comb S17 Right Hand Comb S18 Right Hand Skirt Panel S19 Left Hand Skirt Panel S20/S65 Broken Step or Pallet S45 Left Hand Broken Handrail S46 Right Hand Broken Handrail Q3 Stop Switch (Pit) ASN Phase Device (low or reverse phase) B2 Motor Thermic Device S33 L/H Brake lifted contact S34 R/H Brake lifted contact Missing Step/Pallet upper landing Missing Step Pallet lower landing Floorplate upper landing Floorplate lower landing Motor Temperature contact Phase Reversal Non-reversal device – ECB Up & Down at same time – logic error No Up or Down while running – logic error KSU (Keyswitch Up) or KSD (Keyswitch Down) while on INS KSU signal & D relay or KSD & U relay Power fail 24V (VRS) KSU/D longer than 10 seconds Handrail slip right Handrail slip left Right Handrail slip LOCKED fault – too many slip errors Left Handrail slip LOCKED fault – too many slip errors No run signal within 2 seconds of KSU or KSD Emergency brake switch No Up/No Down – Check ECB on board relays.

LED’s on ECB Controller Name LED No.

State

1 2 3

NRD1 sensor NRD2 sensor Delta contactor

8

Remote Serial Link VLC - Voltage Level Converter

9

LED No. 4 5

Name (LED 4 OFF) Failure Operating Mode

6

Up

7

Down

LED No. 4

Name (LED 4 ON) Failure

5

Safety circuit

6

ECB

7

RSR4 contacts

on on on off blink off on off State

Description Machine running - NRD1 relay ‘in’ Machine running - NRD2 relay ‘in’ Delta operation - YD relay ‘in’ Star operation - YD relay ‘out’ RSL communication OK RSL communication stopped ECB supply OK No supply or reset

off on off blink blink on blink on

Failure (LED’s 5, 6 & 7 change function if LED 4 ON) Off indicates no failures Maintenance operation Continuous operation Intermittent operation Up selected - no start Up contactor, K1, active Down selected - no start Down contactor, K2, active

State

Failure

on blink off on off on off on

Not manual reset fault Manual reset fault – ECB Electrically Locked Safety contacts at RSFF OK Safety contact at RSFF open No failure on ECB ECB failure RSR4 contacts OK RSR4 contacts faulty

Relay No.

Name

Function

REL1

READY

REL2

UP

REL3

DOWN

Down direction relay

REL4

CHECK

Checks that UP, DOWN, READY, NRD1, NRD2, EOK and main motor contactors have dropped prior to starting

REL5

NRD1

Non Reverse Device - channel 1 OK

REL6

NRD2

Non Reverse Device - channel 2 OK

REL7

YD

Star-Delta contactor - YD in for Delta operation

REL8

EOK

Electronics OK - ECB, RSFF and RS4R all OK

REL9

GO

Maintains the UP or Down relays after starting Up direction relay

Controls main motor contactors