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Services, Wärtsilä Finland Oy Engine section Engine type Ref. Date Issue Document No. Page 23 WECS See below WFI–S 29.11.2007 01 WS23P003 1(2) Wärtsilä Finland Oy P.O. Box 252 (Tarhaajantie 2) Telecop. +358 10 709 1847 Tel. +358 10 709 0000 Business ID 0773744-3 Services, Vaasa FIN-65101 Vaasa, Finland Telecop. +358 10 709 1380 Registered Office: Vaasa Wärtsilä Finland Oy P.O. Box 50 (Stålarminkatu 45) Telecop. +358 10 709 3279 Tel. +358 10 709 0000 Services, Turku FIN-20811 Turku, Finland Telecop. +358 10 709 3410 SPARE PART NOTICE Relay module RM10 replaced by RM11a Engine type This bulletin concerns WÄRTSILÄ ® 20, 32, 46, WÄRTSILÄ ® Vasa 32 and 32LN engines equipped with WECS 2000 (Wärtsilä Engine Control System). General The relay module RM-10 has been replaced by a new type, RM-11a. When replacing the RM-10 with RM-11a the actions described below must be observed. RELAY MODULE RM-11 BACKUP U1 U5 U4 U3 U2 + 12 VDC OVERSPEED BY-PASS LUBE OIL SHUTDOWN LUBE OIL SHUTDOWN BLOCKING OPTIONAL SHUTDOWN MCU STOP/SHUTDOWN LOCAL STOP OVERSPEED SHUTDOWN EMERGENCY STOP WECS WATCHDOG STOP/SHUTDOWN OVERRIDE SHUTDOWN RESET STOP RELAY LOCAL START BLOCKING LOCAL START WECS START FUEL LIMITER SLOW TURNING FAILURE ALARM SPEED SWITCH 1 SPEED SWITCH 2 SPEED PULSE LUBE OIL SHUTDOWN SWITCH FAILURE OPTIONAL SHUTDOWN SWITCH FAILURE ENERGIZED STOP SOLENOID FAILURE EMERGENCY STOP FAILURE SHORT CIRCUIT Instructions On RM-11a the cable supervision circuits are using a 10 kohm end resistor instead of 100 kohm resistor used by the RM10. These resistors needs to be changed if cable supervision failure alarms trigger when installed. See Fig 1 of typical connections on the RM for the cable supervision resistors Lube oil press, switch Optional shutdown switch R5 R6 R7 R8 R4 n.c. 1 2 10k PSZ201 2x0,75 Cu PSZ201 Lube oil pressure switch P 10k 1 3 2 1 2 Fig 1. Typical cable supervision resistor connections on the Relay Module
Transcript of WS23P003_01gb
Services, Wärtsilä Finland Oy
Engine section Engine type Ref. Date Issue Document No. Page 23 WECS See below WFI–S 29.11.2007 01 WS23P003 1(2)
Wärtsilä Finland Oy P.O. Box 252 (Tarhaajantie 2) Telecop. +358 10 709 1847 Tel. +358 10 709 0000 Business ID 0773744-3 Services, Vaasa FIN-65101 Vaasa, Finland Telecop. +358 10 709 1380 Registered Office: Vaasa
Wärtsilä Finland Oy P.O. Box 50 (Stålarminkatu 45) Telecop. +358 10 709 3279 Tel. +358 10 709 0000 Services, Turku FIN-20811 Turku, Finland Telecop. +358 10 709 3410
SPARE PART NOTICE
Relay module RM10 replaced by RM11a
Engine type This bulletin concerns WÄRTSILÄ® 20, 32, 46, WÄRTSILÄ® Vasa 32 and 32LN engines equipped with WECS 2000 (Wärtsilä Engine Control System).
General The relay module RM-10 has been replaced by a new type, RM-11a. When replacing the RM-10 with RM-11a the actions described below must be observed.
RELAYMODULE
RM-11
BACKUP U1 U5U4U3U2
+ 12 VDC
OVERSPEEDBY-PASS
LUBE OIL SHUTDOWN
LUBE OIL SHUTDOWNBLOCKING
OPTIONAL SHUTDOWN
MCU STOP/SHUTDOWN
LOCAL STOP
OVERSPEED SHUTDOWN
EMERGENCY STOP
WECS WATCHDOG
STOP/SHUTDOWN OVERRIDE
SHUTDOWN RESET
STOP RELAY
LOCAL START BLOCKING
LOCAL START
WECS START
FUEL LIMITER
SLOW TURNING
FAILURE ALARM
SPEED SWITCH 1
SPEED SWITCH 2
SPEED PULSE
LUBE OIL SHUTDOWN SWITCH FAILURE
OPTIONAL SHUTDOWN SWITCH FAILURE
ENERGIZED STOP SOLENOID FAILURE
EMERGENCY STOP FAILURE
SHORT CIRCUIT
Instructions On RM-11a the cable supervision circuits are using a 10 kohm end resistor instead of 100 kohm resistor used by the RM10. These resistors needs to be changed if cable supervision failure alarms trigger when installed. See Fig 1 of typical connections on the RM for the cable supervision resistors
Lube oil press, switch
Optional shutdown
switch
R5R6R7R8
R4 n.c.12
10k
PSZ2012x0,75 Cu
PSZ201
Lube oil pressure switch
P10k
1
32
1
2
Fig 1. Typical cable supervision resistor connections on the Relay Module
Services, Wärtsilä Finland Oy Spare Parts Notice
Issue Document No. Page 01 WS23P003 2(2)
© 2007 Wärtsilä Finland Oy – All rights reserved No part of this publication may be reproduced or copied in any form or by any means (electronic, mechanical, graphic, photocopying, recording, taping or other information retrieval systems) without the prior written permission of the copyright holder. Wärtsilä Finland Oy makes no representation, warranty (express or implied) in this publication and assumes no responsibility for the correctness, errors or omissions for information contained herein. Information in this publication is subject to change without notice. Unless otherwise expressly set forth, no recommendation contained in this document is to be construed as provided due to a defect in the engine, but merely as an improvement of the engine and/or the maintenance procedures relating thereto. Any actions by the owner/operator as a result of the recommendations are not
The emergency stop input has also a cable supervision function on the RM-11a and here a 10kohm resistor needs to be added over the contact switches of the external emergency stop button. See fig 2 for a typical connection.
covered under any warranty provided by Wärtsilä and such actions will thus be at the owners/operators own cost and expense. NO LIABILITY WHETHER DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL, IS ASSUMED WITH RESPECT TO THE INFORMATION CONTAINED HEREIN. THIS PUBLICATION IS CONFIDENTIAL AND INTENDED FOR INFORMATION PURPOSES ONLY.
X4.8RM.R12
3132
W141x0.75
31
32
X1.D1
X1.D2
24 VDC reference for emergency stop inputEmergency stop input
Emergency stop
10k
Fig 2. Typical cable supervision resistor connection for the emergency stop button.
For further information about the connections please check installation specific drawings.
Ordering instructions Contact your closest Wärtsilä Service Network. When ordering please specify the engine serial number and part number:
Ref type Part number Version Description 32 501 135 0002 Relay module W20 501 027 002 Relay card W32 516 037 007 Relay card W46 502 035 002 Relay card
Letter distribution Wärtsilä Service Network and owners/operators of engines concerned.
Letter validity Until further notice.
