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SQVEx 05.2
SQVEx 14.2/ SQRVEx 05.2
ACVExC 01.2 Modbus RTU
Features and functions
Safety functions
Monitoring function
Diagnostic functions
Motor protection evaluation
Electrical connection
Threads for cable entries
Wiring diagram
For version with MWG within actuator
Setting of limit and torque switching via local controls
Torque feedback signal
Settings/programming the Modbus RTU interface
Setting the Modbus RTU interface
General data of the Modbus RTU interface
Communication protocol
Network topology
Transmission medium
Fieldbus interface
SQRVEx 14.2 Control unit: electronic (MWG)
Standard:
EMERGENCY operation (programmable behaviour)
-
Via additional input (option, low active) or via fieldbus interface
-
Reaction can be selected: STOP, run to end position (OPEN, CLOSED) position
at defined speed
-
Torque monitoring can be by-passed during EMERGENCY operation
Options:
Enabling local controls via Enable LOCAL digital input: Thus, actuator operation can
be enabled or disabled via push buttons on local controls.
Interlock for main/by-pass valve: Enabling the operation commands OPEN or CLOSE
via two digital inputs
PVST (Partial Valve Stroke Test): programmable to check the function of both actuator
and actuator controls: Direction, stroke, operation time, reversing time
Valve overload protection: adjustable, results in switching off and generates fault signal
Motor temperature monitoring (thermal monitoring): results in switching off and generates fault indic-
ation
Monitoring the heater within actuator: generates warning signal
Monitoring of permissible on-time and number of starts: adjustable, generates warning signal
Operation time monitoring: adjustable, generates warning signal
Phase failure monitoring: results in switching off and generates fault signal
Electronic device ID with order and product data
Logging of operating data: A resettable counter and a lifetime counter each for:
-
Motor running time, number of starts, torque switch trippings in end position CLOSED, limit
switch trippings in end position CLOSED, torque switch trippings in end position OPEN, limit
switch trippings in end position OPEN, torque faults CLOSE, torque faults OPEN, motor protection
trippings
Time-stamped event report with history for setting, operation and faults:
-
Status signals according to NAMUR recommendation NE 107: "Failure", "Function check", "Out
of specification", "Maintenance required"
Torque characteristics (for version with MWG in actuator):
-
3 torque characteristics (torque-travel characteristic) for opening and closing directions can be
saved separately.
-
Torque characteristics stored can be shown on the display.
PTC tripping device (TMS module) in combination with PTC thermistors within actuator motor
Standard:
AUMA Ex plug/socket connector (KT); screw-type motor terminals; push-in type control
terminals
Options:
AUMA Ex plug/socket connector with terminal blocks (KES)
AUMA Ex plug/socket connector with screw-type terminals (KP)
Standard:
Metric threads
Options:
Pg-threads, NPT-threads, G-threads
Refer to name plate
Via fieldbus interface
Galvanically isolated analogue output 0/4
Baud rate, parity and Modbus address are set via the display of actuator controls
Modbus RTU according to IEC 61158 and IEC 61784
Line (fieldbus) structure. When using repeaters, tree structures can also be implemented.
Coupling and uncoupling of devices during operation without affecting other devices is possible.
Twisted, screened copper cable according to IEC 61158
EIA-485 (RS-485)
20 mA (load max. 500 Ω).
Technical data
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