Flowserve MX - Limigard Controls; SIL Mode - Standard SIL (Optional); Figure 4.31 - Inputs

Limitorque
®
MX Electronic Actuator FCD LMENIM2306-09-AQ – 08/17
78
Figure 4.31 – Inputs
4.19.7 Limigard Controls
The Limigard controls is available for the MX that presents the user with redundant inputs at Inputs 0 and 5 for close,
Inputs 1 and 4 for open, and Inputs 2 and 3 for stop. Both inputs need to be asserted in order for the actuator to move
open or close. Only 1 stop input needs to be asserted in order for the actuator to stop.
NOTE: These three inputs are normally configurable, however, when this custom mode is enabled, they are set to the
predefined configuration and cannot be changed by the customer.
Input 0 (normal default - ESD) terminal 30:
Set as remote close
Input 1 (normal default · Open Inhibit) terminal 34:
• Set as remote open
Input 2 (normal default - Close Inhibit) terminal 35:
• Set as remote stop
Input 3 (normal default - Stop) terminal 26:
Input 4 (normal default - Open) terminal 25:
Input 5 (normal default - Close) terminal 27:
4.19.8 SIL Mode – Standard SIL (Optional - three phase ACV actuators only)
NOTE: Please refer to LMENIM2350 for SIL Safety IOM
Custom software is available for the MX that permits the User to establish certain performance characteristics for
partial stroke (PS) testing and ESD.
NOTE: These three inputs are normally configurable. When this SIL mode is enabled, input 0 is preconfigured to
ESD, input 1 is pre-configured to partial stroke, and both inputs cannot be changed by the customer. Input 2 can be
configured to user input, inhibit, ESD or CSE.
Input 0 (normal default - ESD) terminal 30:
• Set as enabled, ESD, signal present
Input 1 (normal default - Open Inhibit) terminal 34:
• Set as enabled, partial stroke function, signal present = active
Input 2 (normal default - Close Inhibit) terminal 35:
• Set as disabled, user input, signal absent = active
When this mode is selected, the ESD overrides are set so that ESD had priority over stop, local, and network ESD. You
cannot change that Input 0 is ESD, but it can be enabled/disabled, set to signal present/absent, or you can change the
ESD action.
NOTE: These three inputs are kept as open-stop-close inputs. When the custom mode is enabled, the wire mode is
preset to 4-wire control and cannot be altered.
CHANGE
INPUTS
MODE
4-WIRE OK?
MULTI POSITION
2 OK?
CHANGE
INPUT-0?
STATUS
(ON)-OK?
M1 MOVE TO
(XXX%) OPEN?
PROP BAND
(XXX%) OPEN
DEAD BAND
(XXX%) OPEN
(OFF)
NOTE 1: If using 1 Multi Position then Input 0 will be set as your M1 Move To and
Inputs 1 and 2 are standard configurable. If 2 Multi Positions are used then Input 1
is set as your M2 Position and input 2 is standard configureable.
INPUT 0: ON, M1 Move To, signal present
INPUT 1: OFF, User Input, signal present
INPUT 2: OFF, User Input, signal present
INPUT 3: ON, STOP
INPUT 4: ON, OPEN
INPUT 5: ON, CLOSE
SEE NOTE 1
3 WIRE
MAINT
3 WIRE INCH
LMENIM2306-09 AQ.indd 78 Mittwoch23.08.17 08:53