Flowserve MX Electronic Actuator - Manual (Page 49)

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13
flowserve.com
4.8.6 Delay After Stop
Default setting = 0 seconds
To change from the default setting, select “NO” to adjust the length of delay time after the actuator stops modulating.
The delay after stop is adjustable from 0-60 seconds.
Figure 4.11 – Modutronic option
4.8.7 4-20 mA Signal Range
Signal range allows the user to change the signal range from the default range.
Default Setting is for High Reference = 20 mA (High Reference can also be scaled to some older 10-50mA instrumenta-
tion systems. A 166.66 Ohm resistor should be placed across the milliamp inputs when scaled from 10-50 mA.)
Default Setting for Low Reference = 4 mA
To change signal range (i.e. 4 mA-12 mA or 12 mA-20 mA or others) answer “YES.” Proceed from “SET HIGH
REFERENCE” to “SET HIGH REFERENCE - OK?” A “YES” answer will require the use of a calibrator. If no, change to the
signal range is required, answer “NO” and return to “CHANGE MODUTRONIC?” dialog.
4.8.8 Set High Reference
Default = 20 mA
1. Select “NO” to accept pre-existing setting (no change).
2. Select “YES” to enter the display “APPLY HIGH LEVEL CONTROL SIGNAL.”
3. Apply this signal to terminal 19 and 20 indicated on the wiring diagram.
4. Select “YES” again to record this signal as the high reference. See Figure 4.10.
4.8.9 Set Low Reference
Default = 4 mA
1. Select “NO” to move from “SET HIGH REFERENCE” to “SET LOW REFERENCE.”
2. Select “YES” to enter the display “APPLY LOW LEVEL CONTROL SIGNAL.”
3. Using a calibrator, apply the low signal, and select “YES” to record this signal as the low reference.
YES YES
(OFF)
(ON)
YES YES YES
(1%-100%)
1% increments
(0.1%-100%)
0.1% increments*
* Only if SET POSITION PRECISION is set for XXX.X% OPEN
(0.1%-50%)
0.1% increments*
(OPEN )
(STOP)
(1%-50%)
1% increments
YES YES
NO NO NO NO NO NO NO
NO NO
NO
YES
CHANGE
MODUTRONIC?
STATUS
(ON)-OK?
PROP BAND
(15%)-OK?
FAIL POSITION
(CLOSE)-OK?
DEADBAND
(2%)-OK?
POLARITY
20 m A=OPEN-OK?
D ELAY AFTER STO P
0 SECONDS-OK?
4-20 mA SIGNAL
RANGE?
SET LO W
REFERENCE-OK?
SET HIGH
REFERENCE-OK?
POLARITY
20 mA-CLOSE-OK?
D ELAY AFTER STO P
60 SECONDS-OK?