gearbox. It installs with a plug-in connector and is
recommended in installations where the ambient
temperatures drop below 32˚F (0˚C). Thermostat is pre-set
to activate at or below 40˚F (4˚C) and deactivate at or above
60˚F (15˚C). The heater draws 15 watts at 115 VAC; 40 watts
at 230 VAC (see IMO-I9500 for additional reference).
WARNING
WHENEVER WORKING INSIDE THE ACTUATOR BE SURE TO
FOLLOW ALL GUIDELINES, AND HEED ALL WARNINGS IN THIS
MANUAL. IF INSTALLING AN OPTION KIT, BE SURE TO READ AND
FOLLOW THE SUPPLIED INSTRUCTIONS CAREFULLY AND HEED
ANY ADDITIONAL WARNINGS
This option can be installed in the eld; for 115 VAC
applications, order kit P/N VC099515 and for 230 VAC
applications, order kit P/N VC099523 (see Figure 5).
4.7 Option “Y” - Keyed Output
150 – 600 lb•in (12 - 25 lb•ft; 17 - 68 Nm) actuators are
supplied with a 3/4” female square output coupling; when
the “Y” option is selected they are supplied with a 15mm
female keyed output.
1000 – 3000 lb•in (83 - 250 lb•ft; 113 - 339 Nm) models are
supplied with a 1” female square output coupling; when the
“Y” option is selected they are supplied with a 20mm female
keyed output.
This option is factory installed only.
4.8 Option “Z” – Handwheel Override
P/N VC009097, P/N VC009098
All V-Series actuators are supplied with a wrench-operated
manual override shaft. If the Handwheel Override option
is selected the shaft is replaced by a declucthable shaft
and a six-inch handwheel (see IMO-I9090 for additional
reference).
WARNING
WHENEVER WORKING INSIDE THE ACTUATOR BE SURE TO
FOLLOW ALL GUIDELINES, AND HEED ALL WARNINGS IN THIS
MANUAL. IF INSTALLING AN OPTION KIT, BE SURE TO READ AND
FOLLOW THE SUPPLIED INSTRUCTIONS CAREFULLY AND HEED
ANY ADDITIONAL WARNINGS
This option can also be installed in the eld; for 150 –
600 lb•in (12 - 25 lb•ft; 17 - 68 Nm) models order kit P/N
VC009097 and for 1000 – 3000 lb•in (83 - 250 lb•ft; 113 - 339
Nm) models order kit P/N VC009098.
4.9 Voltage
115 VAC or 230 VAC. V-Series actuators are rated for full
torque at +/- 10% of the nominal voltage at 60 Hz. Note:
operation at 50 Hz will proportionally decrease the duty
cycle and increase the cycle time. V-Series actuators are rated
for a minimum of 75%* duty cycle at 60 Hz at 104˚F (40˚C).
* 55% duy cycle for 3000 lb•in actuators.
5. GENERAL OPERATING INFORMATION
For enclosure specications and dimensions, see (Tables
1-2 and Figure 8).
5.1 Enclosure Ratings and Product
Certications
Metso oers two versions of V-Series actuator enclosures:
the “W” enclosure is weathertight, and the “WX” enclosure
which is weathertight and explosion-proof.
5.2 Wiring
WARNING
VALVCON AC VOLTAGE ACTUATORS USE REVERSING INDUCTION
MOTORS WHICH CAUSE HIGH VOLTAGES. DEVICES CONNECTED
TO TERMINAL 3 AND TO TERMINAL 4 MUST BE RATED FOR
MINIMUM 250 VAC 440 VAC FOR 230 VAC APPLICATIONS.
CONTROLLERS WITH SOLID STATE OUTPUTS MUST BE RATED
FOR MORE THAN 250 VAC. WE STRONGLY RECOMMEND THAT
RELAY OUTPUTS BE USED ON CONNECTED DEVICES. DUE TO THE
INDUCTION FEEDBACK VOLTAGE, MULTIPLE ACTUATORS CAN NOT
BE WIRED IN PARALLEL. SEPARATE ISOLATED CONTACTS MUST BE
PROVIDED FOR EACH ACTUATOR. IF THE ACTUATOR IS DRIVEN BY
CONTACTS ON A PC OR PLC, MAKE SURE THE CONTACTS HAVE THE
PROPER RATINGS.
5.3 Duty Cycle and Motor Protection
V-Series actuators can operate continuously for up to 15
minutes at 104˚F (40˚C). After 15 minutes of continuous
operation they are rated for 75% duty cycle operation at
104˚F and for 30 starts per minute. Duty cycles decrease at
temperatures in excess of 104˚F. Duty cycle is the maximum
proportion of “on” time and the minimum required “o” time
to prevent thermal overloading. Actuators with cycle times
of 30 seconds must rest at least 10 seconds between cycles.
Higher temperature applications decrease duty cycle.
AC motors contain thermal overload protection. Exceeding
the rated duty cycle may cause the thermal overload switch
to temporarily remove power to the motor and cause it to
stall. After the motor cools, the actuator will resume normal
operation. The thermal protector is a safety device, designed
for infrequent use. Constant tripping of the thermal overload
protector may cause premature motor failure.
To Next Page
Loading...
Need help?
General
