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6.1 VE.Bus Error Codes
6.1.1 General
During first installation, and in case of problems,
update all devices to the latest firmware. This
includes the latest VE.Bus firmware and also the
latest firmware in the CCGX.
To restart a system, first switch all units off, one by
one. And then switch all units on again. Do this with
the On / Off / Charger-only rocker-switch on the front
of the device.
6.1.1.1 Network cable quality
Make sure to use industrially made network cabling.
Using self crimped RJ45 cables is a known cause of
various of below list of errors.
This applies to network cables for split-, three phase
and parallel systems as well as connecting a CCGX or
other accessory on the VE.Bus network.
6.1.2 VE.Bus Error Codes
6.1.2.1 Error 1 - Device is switched off
because one of the other phases in
the system has switched off
One of the phases in a multi-phase system has failed.
Commonly because of a Low battery, Overload or
High temperature alarm. When this happens, the other
phases will show VE.Bus Error Code 1.
Trouble shooting
Look for the failing phase, which will be the phase
that is not showing VE.Bus Error Code 1 and check
the LEDs on that phase to find out what the reason
was for the shut down.
Diagnosing on VRM
First make sure that Automatic alarm monitoring is
enabled; that is necessary to create the Overload and
Temperature errors in the log. You will see Overload
and Temperature alarms occurring at the same time as
VE.Bus Error 1.
Note for split- and three-phase systems
VRM, nor the CCGX, will indicate on which phase
the overload or the temperature alarm occurred. To
find out on which unit the error occurs, go to system
after it has switched off and look on the LEDs. The
unit with the overload or temperature alarm, will have
the corresponding alarm LED lit continuously. The
other units will indicate a VE.Bus error, indicating
that they miss one unit.
6.1.2.2 Error 2 - New and old types MK2 are
mixed in the system
This should never happen, contact Atlas Copco
service.
6.1.2.3 Error 3 - Not all, or more than, the
expected devices were found in the
system
Possible causes and solutions
1. This error often follows VE.Bus Error 1. Solution:
solve the cause for VE.Bus Error 1. Note that
when using an older CCGX (version before
v1.40), it can be that the first error is not reported
on the Alarm log on VRM. So even when it only
lists VE.Bus Error 3, it can very well be that the
error was preceded by VE.Bus Error 1.
2. The system is not properly configured: all VE.Bus
devices connected to the VE.Bus network must be
configured as one parallel, split- and/or three-
phase system. Do not connect two separate
VE.Bus systems together.
3. Communication cable error: Check the communi-
cation cables. Make sure to use commercial patch
leads and not hand-crimped cables. VE.Bus ca-
bling is very sensitive to physical wiring faults.
4. DC fuse blown of one or more units in the system:
When mains is available all units seem to work
correctly, but as soon as mains fails, or as soon as
the system decides to switch to Island mode for
any other reason, the non-powered units are
disconnected from the system.
The steps and instructions explained
here, are intended to be carried out
by trained professionals. AC (and
also DC) voltages can be lethal. And
certain settings and firmware up-
dates require experience and train-
ing as well.
00_00_ZBP45_EN.book Page 50 Monday, October 19, 2020 9:52 AM
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