Operation0850−1/A1
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Failure Text
ME cylinder lubrication malfunction cylinder #nn
ALM−20 No. LED On / Off Code
Indication #01 to #09 CAN1 and/or CAN2 Red None
Cause LED indication on one module: a cable is broken on the plug X2 on the related ALM−20.
LED indication on all modules: CAN Bus #1 / #2 malfunction.
Procedure ⇒ LED indication on one module: Do a check of the cables on the plug X2 (terminals 25 and 26
CAN #1 and/or terminals 27 and 28 CAN #2 on the related ALM−20 for correct connections
and / or damage.
⇒ LED indication on all modules: Do a check of the CAN module bus from the last and the last but
one cylinder on the FCM−20 (plug X22, terminals 55 and 56) for correct connections and / or
damage.
⇒ If necessary, repair or replace damaged cables.
⇒ If necessary, replace the ALM−20.
ALM−20 No. LED On / Off Code
Indication #01 to #09 VLV and Fail Red None
Cause The cables between the ALM−20 (plug X1, terminals 11 and 12) and the 4/2-way solenoid
valve (ZV7131C to ZV7139C) have a short circuit.
Procedure ⇒ Do a check of the related cables. If the cables are serviceable, the 4/2-way solenoid valve has
a malfunction (coil R~18 ohm).
⇒ Make sure that the related cable between ALM−20 (plug X1, terminals 11 and 12) and the
4/2-way solenoid valve is correctly connected and has no damage.
⇒ If necessary, repair or replace damaged cables.
⇒ If necessary, replace the related 4/2-way solenoid valve (see 0820−1, paragraph 2 Cylinder
lubrication).
ALM−20 No. LED On / Off Code
Indication #01 to #09 VLV and Fail Red None / 1x
Cause A cable is broken between the ALM−20 (plug X1, terminals 11 and 12) and the 4/2-way
solenoid valve (ZV7131C to ZV7139C).
Procedure ⇒ Do a check of the related cables. If the cables are serviceable, the 4/2-way solenoid valve has
a malfunction (coil R~18 ohm).
⇒ Make sure that the related cable between the ALM−20 (plug X1, terminals 11 and 12) and the
4/2-way solenoid valve is correctly connected and has no damage.
⇒ If necessary, repair or replace damaged cables.
⇒ If necessary, replace the related 4/2-way solenoid valve (see 0820−1, paragraph 2 Cylinder
lubrication)
ALM−20 No. LED On / Off Code
Indication #01 to #09 Fail Red None
Cause A short circuit of the cables from ALM−20 (plug X1, terminals 13 and 14) to the pressure
transmitter (PT3131 to PT3139C).
Procedure ⇒ Do a check of the cables on the related ALM−20. If the cables are serviceable, the pressure
transmitter has a malfunction.
⇒ Make sure that the related cable between the ALM−20 (plug X1, terminals 13 and 14) and
pressure transmitter is connected correctly and has no damage.
⇒ If necessary, repair or replace damaged cables.
⇒ If necessary, replace the related pressure transmitter (PT3131C to PT3137C) (see 0820−1
paragraph 2 Cylinder lubrication).
2014
Failures and Defects of WECS Components
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