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ML6984, ML7984 SERIES 4000 DIRECT COUPLED VALVE ACTUATORS

95C-10939—11

10

NOTE:

The 272630D position feedback/auxiliary switch 
module cannot be used with ML6984 3-wire 
installation. The 272630D requires continuous 
power. 

ML6984 XL10 Controller 
Compatibility 

XL10 controllers are designed to work with constant-speed 
actuators. ML6984 actuators use direct current motors 
which vary their speed as the valve seats or if power supply 
voltage is not consistent. ML6984 actuators in 5-wire 
mode offer 30 discrete positions only. To minimize 
potential valve position drift, XL10 controllers should use 
the 3-wire installation and be programmed for a daily valve 
exercise cycle. 

ML6984 On-Off Operation 

For on-off operation, ML6984 requires a 24 Vac SPDT 
contact. An interface relay such as RA889 is required to 
power the anticipator heater of an electromechanical 
thermostat such as T87F (See Fig. 17). 

Fig. 17. ML6984 with Honeywell T87F Round™ 

Thermostat.

If connecting the ML6984 directly to a T87F with a Series 
20 sub-base, clip out the cooling anticipation resistor on 
the sub-base between terminals R

c

 and Y. This is needed 

for electrical compatibility with ML6984 but may result in 
wider room temperature swings due to the loss of 
anticipation. 

REPLACEMENT NOTES

Fig. 18. ML6984 with Honeywell T87K Round™ 

Thermostat.

See Fig. 19, if connecting TH5110D or TH6110D 
FocusPRO™ thermostats to ML6984. Configure the 
thermostats for Series 20 operation. 

Fig. 19. ML6984 with FocusPro™ Electronic Thermostat.

L1

L2

R

W

T6

T5

B

R

W

1K

1K1

ML6984

1

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.

1

2

2

SET HEATING ANTICIPATOR TO MATCH CURRENT DRAW OF
RELAY 1K. DO NOT ROUTE RELAY CONTACTS THROUGH
THERMOSTAT.

M25501

M25502

T6
T5

C
B

W

R

1

W

Y

R

HEATING ONLY

T6
T5

C
B

W

R

1

W

Y

R

COOLING ONLY

1

CLASS 2 TRANSFORMER. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.

24Vac

24Vac

ML6984

UP
DOWN

ML6984

UP
DOWN

M25503

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL 24 VAC COMMON CONNECTION.

CONFIIGURE SYSTEM TYPE TO HEAT ONLY IN THE INSTALLER SETUP.

TERMINALS R AND T5 ARE INTERNALLY CONNECTED.

1

2

3

4

5

R

C

1

L1

(HOT)

L2

ML6984

3

4

2

O/B

TH5110D
TH6110D

Rc

R

Y

C

W

G

B

W

R

T6

T5

5

POWER TO OPEN
AND POWER TO 
CLOSE
MOTOR OR VALVE
(SERIES 20)

THERMOSTAT WIRING TERMINALS

Содержание ML6984

Страница 1: ... supply for multiple actuators and controllers 24 Vac or 28 Vdc power supply Field addable position feedback auxiliary switch module available for 5 wire models APPLICATION The ML6984 and ML7984 are self contained self adjusting motorized valve actuators that mount directly onto V5011 two way and V5013 three way globe valves providing linear stem operation between 1 2 in 13 mm and 1 in 25 mm ML698...

Страница 2: ...istance Electrical Ratings Power supply consumption 24 V 10 15 50 60 Hz or 28 Vdc 10 6 VA Run ning 12 VA Valve seating CE Certified Inputs ML6984 25 mA 24 Vac 5 wire mode only 500 mA valve seating 3 wire mode Minimum Signal Input Duration 100 ms ML7984 2 10 Vdc 1 mA 4 20 mAdc May be used with 0 10 Vdc input but valve will be closed at 2 Vdc Input Impedance for the ML7984 Voltage Source 20 KW ohm C...

Страница 3: ...lations Honeywell assumes no responsibility for damages or injuries resulting from non compliance with installation instructions or standard good practice when mounting operating or maintaining the valves even if not explicitly mentioned in the installation instructions Observe all safety practices when working with steam systems Mounting 1 Ensure that valve body is installed correctly arrow point...

Страница 4: ... age the threads or other parts of the stem 4 Orient the conduit hole to the most desirable direc tion then tighten the LOCKNUTS on the U bolt 5 Remove the plastic cover from the MLx984 by loos ening the two captive screws located on the top Drop the Allen Hex type of set screw included in the plas tic bag into the top of the shaft hex side up 6 Tighten the set screw to lock valve stem in place Fi...

Страница 5: ... CAN SHARE SAME TRANSFORMER PROVIDED THAT THE VA RATING OF THE TRANSFORMER IS NOT EXCEEDED AND PROPER PHASING IS OBSERVED DO NOT MIX A C AND D C POWER SOURCES CONTROLLER CAN BE LOW VOLTAGE SPDT SERIES 20 ON OFF OR SP3T SERIES 60 FLOATING TRI STATE TYPE TERMINALS R AND T5 ARE CONNECTED INSIDE THE ML6984 1 2 3 1 2 3 M25493A 3 1 3 W R B T6 T5 C H ML6984 TYPICAL ELECTRONIC CONTROLLER L1 L2 POWER SUPPL...

Страница 6: ...EM MOVES UPWARDS WITH SIGNAL INCREASES TO 10V 20MA ALWAYS TURN POWER OFF BEFORE SETTING ANY DIP SWITCHES 1 2 3 4 5 3 2 1010 10 2 VDC REVERSE ACTING 3 2 3 2 M25496A T5 T6 L1 L2 28 VDC ML7984 R W C T5 T6 OR SIGNAL SOURCE C R W T5 T6 ML7984 ML7984 SLAVE R W C T5 T6 24 VAC FUNCTION DIP SWITCH CONFIGURATION X000 4 20 MA DIRECT ACTING X010 20 4 MA REVERSE ACTING 1 2 3 4 ON 1 OFF 0 1 2 3 4 ON 1 OFF 0 POW...

Страница 7: ...SELECT DEVICE FUNCTIONS DIRECT ACTING FUNCTION ACTUATOR STEM MOVES UPWARDS WITH SIGNAL INCREASE OR REVERSE ACTING FUNCTION ACTUATOR STEM MOVES DOWNWARDS WITH SIGNAL INCREASE 5 TURN POWER OFF BEFORE SETTING ANY DIP SWITCHES FOR COMMON TRANSFORMER AND COMMON CONTROLLER APPLICATION PLEASE CONSULT THE FACTORY 6 MAXIMUM RESISTANCE PER CONTROL CIRCUIT OF 280 OHM M25497A B R W T6 T5 B R W B R W T6 T5 B R...

Страница 8: ...ES TO 10V 20MA OR REVERSE ACTING FUNCTION ACTUATOR STEM MOVES DOWNWARDS WITH SIGNAL INCREASES TO 10V 20MA 5 TURN POWER OFF BEFORE SETTING ANY DIP SWITCHES R W R W M25499A T6 T5 B R W ML7984 T6 T5 B R W L1 L2 OR 28 VDC 24 VAC T5 T6 ML7984 ML7984 T6 T5 B R W R W ELECTRONIC SERIES 90 W973 T775 H775 W7100 NOTE POLARITY SENSITIVE CHECK CONNECTIONS W to R R to W L1 L2 L1 L2 OR OR 28 VDC T5 T6 28 VDC T5 ...

Страница 9: ...nect power supply before beginning installation to prevent electrical shock and equipment damage All wiring must comply with applicable local electrical codes ordinances and regulations Make certain that the voltage and frequency of the power supply correspond to the rating of the device DO NOT electrically operate the MLx984 actuator before assembly to the valve because damage not apparent to the...

Страница 10: ...base between terminals Rc and Y This is needed for electrical compatibility with ML6984 but may result in wider room temperature swings due to the loss of anticipation REPLACEMENT NOTES Fig 18 ML6984 with Honeywell T87K Round Thermostat See Fig 19 if connecting TH5110D or TH6110D FocusPRO thermostats to ML6984 Configure the thermostats for Series 20 operation Fig 19 ML6984 with FocusPro Electronic...

Страница 11: ...endent output switch is needed wire the 2 10 Vdc position feedback signal to an Approved adjustable voltage controlled relay CHECKOUT ML7984 1 Make sure the valve stem is completely screwed into the actuator drive shaft with no threads showing before applying power 2 Make sure the valve stem is locked in place with the set screw 3 Make sure the Configuration DIP switches are set correctly 4 With 2...

Страница 12: ...P switch settings Check against Product Instruction Sheet Noisy Motor Bearing failed due to overheat 1 Check for excessive temperature and replace complete actuator 2 Use high temperature kit 43196000 001 Brushes worn out Check for excessive cycling and replace actuator Motor overheats smoke component burn out Current sensing circuit failed or electronic components failed Replace actuator Make sur...

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