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Operation & Service Manual
Valve islands VS18/VS26 EtherNet/IP
09/2018
Construction & Design is subject to change © 2018 Norgren GmbH
2.4 Power-up and initialization phase of the VS18/VS26 valve island
It is possible to read the actual installed firmware release using the Logix-Designer from Allen-
Bradley. Please refer to chapter 4.4 for more details.
2.4.1 Firmware release V1.001 and lower
The valve island initializes automatically after power-up. During initialization the number of
available valve stations is also evaluated, which requires that at this point also the power supply for
the valves (VA) is already available during initialization start. Otherwise not all valve stations might
be detected and initialization of the valve island fails. This failure case is indicated by the following
permanent Status LED states:
P1
– off
P2
– off
NS
– off
MS
– red
VB
– green
VA
– green
2.4.2 Firmware release V1.002 and higher
The requirement as described in chapter 2.4.1 is not applicable for the firmware release V1.002
and higher.
The initialization of the valve island is performed during the testing in production before delivery.
Note:
In case any changes are made on the hardware of the valve islands (i.e. adding or removing valve
stations), the power supply must be completely disconnected by unplugging the power supply
connector.
After the hardware change is completed, the new configuration must be initialized.
During initialization the number of available valve stations is evaluated, it is therefore required to
have both the power supply for electronics (VB) and power supply for the valves (VA) available.
Furthermore it is required to adjust the valve island size in the PLC / Hardware configuration for
proper functioning and diagnosis.
