ABB valve module V18345-1020120001 warranty after-sales

Description

V18345-1020120001 The 8 Point Analog Current-source Output Module is usually configured using a compatible hand

held programmer. The configuration can also be read or written from the bus in a system that

supports such configuration. The table below summarizes configuration choices and defaults. The

module will power up with the default configuration settings. V18345-1020120001 For configuration instructions, refer

to the Bus Interface Unit User’s Manual.

V18345-1020120001 Each channel can be configured as either active or inactive.

If a channel is Inactive, its output is 0mA and the analog output data for the channel is not used.

Alarm (optional discrete input) data for the channel is not updated for a channel that has been

configured as Inactive.

V18345-1020120001 If the configuration of a channel is changed from Active to Inactive, the module stops updating its

alarm data. Pre-existing alarms can still be cleared using the module’s configured discrete output

bits.

Local Output Defaults

In addition to being able to configure data defaults V18345-1020120001 of zero or hold last state for the module’s data in

the BIU, local output defaults for the module are also configurable. These module local defaults

determine whether the module will set the actual output currents to zero milliAmps or hold their

last values if a module error occurs.

Hold Last State

If the output default is Hold Last State and user power is present, the channel output holds its last

value if:

1. The BIU resets the module.
2. No output data is received from the BIU within the BIU Timeout period.
3. Backplane power is lost.
4. The module’s watchdog timer expires.

If either of the last two faults occurs, the default output resolution of the value is reduced from 16

bits to 14 bits.

Outputs will continue to hold their last states until the module receives output data from the BIU or

until user power is removed.

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