Flowserve MX HART Field Unit - Manual (Page 7)

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MX/QX HART Field Unit FCD LMENIM2340-00 – 1/14
flowserve.com
1.3 User Safety
Safety notices in this manual detail precautions the user must take to reduce the risk of personal injury and damage
to the equipment. The user must read and be familiar with these instructions before attempting installation, operation,
or maintenance. Failure to observe these precautions could result in serious bodily injury, damage to the equipment,
warranty void, or operational difficulty. User must follow local and state safety regulations.
Safety notices are presented in this manual in three forms:
c WARNING: Refers to personal safety. Alerts the user to potential danger. Failure to follow warning notices could
result in personal injury or death.
a CAUTION: Directs the user’s attention to general precautions that, if not followed, could result in personal injury
and/or equipment damage.
NOTE: Highlights information critical to the user’s understanding of the operator’s installation and operation.
1.4 User Knowledge
It is recommended that the user read this manual in its entirety before the MX/QX HART equipped actuator is installed
and operated.
The user needs to have a fundamental knowledge of electronics and microprocessor concepts. An understanding of
valve actuators and digital control systems is beneficial to the field unit user. Refer to the Glossary for terms used
throughout this manual.
The following websites have documents on HART and electric actuators: www.hartcomm.org and www.flowserve.com
For HART technology and cabling information, refer to the following documents:
HART Communication Protocol Specification: HCF_SPEC-13
HART Communication FSK Physical Layer Specification: HCF_SPEC-54
HART Communication Command Summary Specification: HCF_SPEC-99
HART Communication Universal Command Specification: HCF_SPEC-127
HART Communication Common Practice Command Specification: HCF_SPEC-151
HART Communication Common Tables: HCF_SPEC-183
1.5 MX/QX HART System Capabilities and Features
Limitorque’s HART field unit conforms to the HART Communication Protocol Specification (Document HCF_SPEC-
13). The device is suitable for use on point-to-point and multi-drop network topologies. The communication system
theoretically supports up to 26 actuators connected in a multi-drop network.
The MX/QX HART field unit fits in the actuator in the sealed electrical housing. Adjustments to the MX/QX HART
settings must be made from the configuration SETUP menu.
The MX/QX HART field unit may command its actuator to:
Open
Stop
Close
Move to a set position
Perform an emergency shutdown operation
Read and control relays
Perform partial stroke test
Monitor analog inputs and position
Monitor modes and alarms