SAF Opal Pro MS6 Series User manual

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www.opalstarters.com
Installation & Operating Procedures
Opal Pro MS6
Series
SOLID STATE REDUCED VOLTAGE STARTER
FOR 3 PHASE INDUCTION MOTORS

Opal Pro MS6 SERIES
SOLID STATE REDUCED VOLTAGE
STARTER
FOR 3 PHASE INDUCTION MOTORS
Revision 1.08 - 01/2011

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FOR YOUR SAFETY
Only qualified personnel should install this equipment, after first reading
and understanding all the information in this manual. All instructions should
be strictly adhered to. The user should consult SAF Drives Inc. or a SAF
OPAL Starters supplier for clarification of the contents of this manual should
any doubt or questions arise.
The installation of this equipment must be conducted in accordance with all
national, regional and local electrical codes.
All drawings and technical representations included in this manual are for
typical installations and should not in any way be considered for specific
applications or modifications. Consult SAF OPAL Starters for supplemental
instructions.
SAF Drives Inc. accepts no liability for any consequences resulting from
inappropriate, negligent or incorrect installation, application or adjustment of
this equipment.
The contents of this manual are believed to be correct at the time of
printing. In following with our commitment to the ongoing development and
improvement of our products SAF OPAL Starters reserves the right to
change the specification of this product and/or the content of this instruction
manual without notice.

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TABLE OF CONTENTS
1 MS6 GENERAL DESCRIPTION................................................................................................. 7
1.1 OVERVIEW................................................................................................................................................................7
1.1.1 STANDARD FEATURES ...................................................................................................................................7
1.1.2 OPTIONAL FEATURES....................................................................................................................................8
1.2 APPLICATION NOTES ............................................................................................................................................8
1.2.1 OPERATION MODES........................................................................................................................................8
1.2.2 CHOOSING STARTING MODE.......................................................................................................................8
1.2.3 MOTOR AND LOAD TYPES............................................................................................................................9
1.2.4 STARTING AC MOTORS IN PARALLEL .....................................................................................................9
2 SPECIFICATIONS ...................................................................................................................... 10
2.1 POWER RATING.....................................................................................................................................................10
2.2 MAXIMUM RATINGS............................................................................................................................................10
2.3 SERVICE CONDITIONS ........................................................................................................................................10
2.4 FUSE SIZING............................................................................................................................................................11
2.5 DIMENSIONS...........................................................................................................................................................12
2.5.1 STANDARD UNIT.............................................................................................................................................12
2.5.2 REVERSING UNIT (OR STANDARD UNIT WITH DC INJECTION).....................................................12
3 TERMINALS................................................................................................................................ 13
4 KEY PAD OPERATION.............................................................................................................15
5 INSTALLATION AND START-UP........................................................................................... 16
5.1 INSPECTION............................................................................................................................................................16
5.2 SAFETY PRECAUTIONS.......................................................................................................................................16
5.3 MOUNTING GUIDELINES....................................................................................................................................16
5.4 WIRING GUIDELINES...........................................................................................................................................17
5.5 START-UP.................................................................................................................................................................18
5.5.1 BEFORE POWER-UP.......................................................................................................................................18
5.5.2 WITH POWER ON ...........................................................................................................................................18
6 FAULTS......................................................................................................................................... 19
FAULT (DISPLAY)....................................................................................................................................................19

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7 FEATURES................................................................................................................................... 20
7.1 SOFT STOP...............................................................................................................................................................20
7.2 SCR BY-PASS...........................................................................................................................................................20
7.3 SHEAR PIN PROTECTION ...................................................................................................................................20
7.4 SLOW SPEED FWD/REV (JOG) ...........................................................................................................................20
7.5 SHORTED SCR DETECTION ...............................................................................................................................21
7.6 SOLID STATE FULL SPEED REVERSING........................................................................................................21
7.7 DC INJECTION BRAKING....................................................................................................................................22
8 PARAMETERS ............................................................................................................................ 23
9 SPARES......................................................................................................................................... 28
9.1 SPARE PARTS..........................................................................................................................................................28
9.2 SCR INSTALLATION PROCEDURE...................................................................................................................28
10 CONNECTION DRAWINGS ................................................................................................... 29
10.1 TWO WIRE CONTROL.......................................................................................................................................29
10.3 THREE WIRE REVERSING...............................................................................................................................31
10.4 THREE WIRE WITH BY-PASS..........................................................................................................................32
10.5 THREE WIRE CONTROL WITH SHORTED SCR DETECTION................................................................33
10.6 DCI FOR 80 AMP UNITS AND BELOW...........................................................................................................34
10.7 DCI FOR 125 AMP UNITS AND ABOVE..........................................................................................................35
10.8 INTEGRATED BY-PASS .....................................................................................................................................36

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1 MS6 GENERAL DESCRIPTION
1.1 OVERVIEW
The Opal Pro series is a processor controlled line of solid state reduced voltage starters for use
with 3 phase induction motors. This series also includes various communication options,
which can be easily added to connect to standard industrial networks.
A solid state starter provides a step-less, smooth current ramp to the motor. This characteristic
eliminates current surges and mechanical torque transients. Since these units are solid state, we
now eliminate the maintenance of moving contacts, which are involved in almost any other
method of starting an AC induction motor.
1.1.1 STANDARD FEATURES
•200 – 600 VAC 3 phase universal voltage, 50/60Hz with no adjustment
•Single control card through out Opal Pro range
•Current regulated closed loop
•Dual operation modes to match any application:
Constant Current mode for light loads or limited power supplies
Current Ramp mode for high inertia or heavy loads
•Soft stop
•Jog Speed:
14% of full speed forward
20% of full speed reverse
•Two or three wire control
•120 VAC control inputs for:
Start
Stop
Jog
Reverse
Reset
Enable
•Keypad and LCD display for starter setup and diagnostics
•Single phase protection
•Phase rotation insensitive
•Instantaneous over-current trip
•Class 10, 15, 20, or 30 electronic motor overload
•Shorted SCR Fault output
•Shear pin Fault
•Dry contact relay outputs for:
Fault
By-pass
Shorted SCR
Running
Reverse

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1.1.2 OPTIONAL FEATURES
•By-Pass Contactor
Once the motor has reached operational speed, the by-pass contactor is closed. This
shorts the SCR’s which eliminates the voltage drop across the SCR’s, in turn being more
efficient and ridding excess heat.
•Solid State Full Speed Reversing
Through the addition of 4 SCR’s and a reversing card, smooth motor reversing is
achieved without having to stop the motor.
•DC Injection Braking
Through the addition of SCR’s and a DC injection card, adjustable electric braking of the
AC motor is performed.
•Various communication options, which will allow connection to standard industrial
networks
•NEMA 4 or NEMA 12 enclosures
1.2 APPLICATION NOTES
1.2.1 OPERATION MODES
With any induction motor the design is such that starting currents and torques are very high.
Across the line starting for a basic NEMA B design motor creates an in-rush current of 600%
or more of the nameplate rating. Often these levels are so high that they cause problems with
mechanical or auxiliary electrical. An example of this is the high starting torques which cause
belt slip and high currents, creating large voltage dips. The basis of choosing the correct
starting mode is determining the problem to be solved.
1.2.2 CHOOSING STARTING MODE
Constant Current Mode
Soft Starting for light loads or reducing starting current are accomplished by using the Constant
Current Mode.
On some applications the starting time is still too fast in the current ramp mode because the
load is too light. In this application it is best to select the constant current mode which will
allow the acceleration torque to be better controlled, actually kept constant.
If the available current is limited and causes significant voltage drops, the constant current
mode will allow flexibility in setting the current draw. Remember that the current level must be
great enough to provide acceleration torque and this level is determined by the load.
For all other applications, or if in doubt, select the Current Ramp Mode.
Current Ramp Mode
Torque Reduction on heavy loads is accomplished by using the Current Ramp Mode.
The idea is to reduce starting current to just above the level, which will produce enough torque
to get the motor to move. This is commonly referred to as "break-away torque". As the current
ramps up from this point, the torque also increases as time passes. If at the initiation of start,
the motor torque is less than the load, the motor will remain stalled until the torque ramps to a
sufficient level for acceleration.

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1.2.3 MOTOR AND LOAD TYPES
Squirrel Cage Motors
Squirrel cage motors, with a single winding and of any NEMA design may be connected to the
Opal Pro starter.
Wound Rotor Motors
Wound Rotor Induction Motors (WRIM) and solid state starters make an excellent combination
for frequent starting, jogging, plug-stopping and reversing applications. These WRIM motors
use multiple steps of resistors to provide various speed torque characteristics. This allows a
high starting torque characteristic while providing low starting current when compared to
NEMA B designs.
One disadvantage has been the high maintenance costs of the resistor and shorting contactor
bank. The use of an Opal Pro allows an improvement to this arrangement by allowing the
current to be limited without use of the multiple steps. Usually the load characteristic is such
that this starting may be accomplished with only one or two starting steps. By eliminating
several contactors a major savings is realized that often pays for the installation cost.
The common method is to add only one step of resistance at 20% (Rotor volts divided by Rotor
Amps times 20%). This resistance value will provide relatively high starting torque and the
Opal Pro will be used to limit the current. As little as 200% of motor full load current can
provide 100% starting torque unlike squirrel cage NEMA B motors which would require 500%
current. The resistor bank may be shorted with a contactor at full speed to reduce the slip and
eliminate the watt losses in the resistors.
Other Types of AC Motors
Opal Pro starters may also be used to start 2-speed motors with multiple windings or
connections. Proper contactor selection and sequencing is required for the specific motor.
Resistive and Inductive Loads
The Opal Pro MS6 is well suited for use as a phase controller or current regulator on resistive
or inductive loads such as heaters. When applied with a Temperature PI controller, the Opal
Pro MS6 will maintain smooth control to avoid the overheating associated with on/off type
controllers. Improved temperature accuracy and longer heater element life can be expected
over standard control methods.
1.2.4 STARTING AC MOTORS IN PARALLEL
Opal Pro MS6 starters can be used to start motors in parallel but they must have individual
overload devices added.
When the paralleled motors are also connected to the same load, mechanically or through the
material, then load sharing must be considered.
When the motors are mechanically tied, the load sharing is determined by how closely the
motor characteristics are to each other. It is important to keep the motors exactly the same.
Even changing the manufacturers of the motors can cause some variations in load sharing. The
Opal Pro size is determined by the total of the motor current ratings.

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2 SPECIFICATIONS
2.1 POWER RATING
Power 3 phase, 200-600 VAC, 50/60Hz
Control 115VAC 50Hz or 120VAC 60Hz
Rating See Section 2.2
All models have 1600V PIV SCR’s
Digital Inputs 120VAC, 2mA
Digital Outputs Relay contacts rated at 0.2A, 120VAC
By-Pass Output Relay contact rated at 5A, 120VAC
Analog Input 0 – 10Vdc
Analog Output 0 – 5Vdc, 5mA max
Protection Short circuit by HRC fuses or circuit breaker (supplied upon request)
2.2 MAXIMUM RATINGS HORSE POWEROPAL PRO
MODEL 230VAC 460VAC 575VAC
MS6-30 10 25 30
MS6-50 20 40 50
MS6-80 30 60 75
MS6-125 40 100 125
MS6-250 100 200 250
MS6-420 175 350 420
MS6-500 200 400 500
MS6-600 200 500 600
MS6-800 300 600 800
* HP Rating for estimate only. Size by motor FLA
2.3 SERVICE CONDITIONS
Elevation For altitudes in excess of 1000 meters (3300 feet) above sea level, all
assemblies must be de-rated 1% for every 100 meters (330 feet) above
Ambient Temperature Do not install in areas where the ambient temperature falls below
0°C(32°F) or exceeds 40°C(104°F)

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2.4 FUSE SIZING HP J FUSE AMPSOPAL PRO
MODEL MOTOR FLC 240V 460V 575V FAST ACTING TIME DELAY
20 --- 15 20 50 30
25 10 20 25 60 40
MS6-30
30 --- 25 30 70 50
37 15 --- --- 70 50
40 --- 30 40 80 60
MS6-50
50 20 40 50 100 80
60 25 --- 60 125 90
65 --- 50 --- 150 100
MS6-80
75 30 60 75 150 125
90 --- 75 --- 200 150
100 40 --- 100 200 150
MS6-125
125 50 100 125 250 200
150 60 125 150 300 225
180 75 150 --- 400 250
200 --- --- 200 400 300
MS6-250
250 100 200 250 500 350
300 125 250 300 600 450
L FUSE AMPS
360 150 300 --- 600 500
MS6-420
400 --- --- 400 600 600
MS6-500 500 200 400 500 800 600
L FUSE AMPS
MS6-600 600 250 500 600 900 800
700 300 --- 700 1000 1000
720 --- 600 --- 1100 1000
MS6-800
800 --- --- 800 1200 1200
840 --- 700 --- 1400 1200
850 350 --- --- 1400 1200
900 --- --- 900 1500 1200
960 --- 800 --- 1500 1600
MS6-1000
1000 --- --- 1000 1600 1600

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2.5 DIMENSIONS
2.5.1 STANDARD UNIT DIMENSIONSMODEL HEIGHT WIDTH DEPTH WEIGHT
MS6-30-N1 43.2cm(17”) 30.5cm(12”) 26.75cm(10.5”) 13.6kg(30 lbs.)
MS6-50-N1 43.2cm(17”) 30.5cm(12”) 26.75cm(10.5”) 13.6kg(30 lbs.)
MS6-80-N1 43.2cm(17”) 30.5cm(12”) 26.75cm(10.5”) 13.6kg(30 lbs.)
MS6-125-CH 38cm(15”) 38cm(15”) 29.25cm(11.5”) 18.2kg(40 lbs.)
MS6-250-CH 38cm(15”) 38cm(15”) 29.25cm(11.5”) 18.2kg(40 lbs.)
MS6-420-CH 49.5cm(19.5”) 38cm(15”) 29.25cm(11.5”) 22.6kg(50 lbs.)
MS6-500-CH 49.5cm(19.5”) 45.75cm(18”) 33cm(13”) 42.2kg(93 lbs.)
MS6-600-CH 49.5cm(19.5”) 45.75cm(18”) 33cm(13”) 42.2kg(93 lbs.)
MS6-800-CH 68.6cm(27”) 61cm(24”) 38.1cm(15”) 56.7kg(125 lbs.)
MS6-1000-CH 68.6cm(27”) 61cm(24”) 38.1cm(15”) 56.7kg(125 lbs.)
2.5.2 REVERSING UNIT (or STANDARD UNIT WITH DC INJECTION)
DIMENSIONSMODEL HEIGHT WIDTH DEPTH WEIGHT
MS6R-30-N1 43.2cm(17”) 30.5cm(12”) 26.75cm(10.5”) 13.6kg(30 lbs.)
MS6R-50-N1 43.2cm(17”) 30.5cm(12”) 26.75cm(10.5”) 13.6kg(30 lbs.)
MS6R-80-N1 43.2cm(17”) 30.5cm(12”) 26.75cm(10.5”) 13.6kg(30 lbs.)
MS6R-125-CH 62cm(24.5”) 38cm(15”) 29.25cm(11.5”) 27kg(60 lbs.)
MS6R-250-CH 62cm(24.5”) 38cm(15”) 29.25cm(11.5”) 27kg(60 lbs.)
MS6R-420-CH 83cm(32.5”) 38cm(15”) 29.25cm(11.5”) 34kg(75 lbs.)
MS6R-500-CH 83cm(32.5”) 45.75cm(18”) 33cm(13”) 63kg(140 lbs.)
MS6R-600-CH 83cm(32.5”) 45.75cm(18”) 33cm(13”) 63kg(140 lbs.)
MS6R-800-CH 113cm(44.5”) 61cm(24”) 38.1cm(15”) 85kg(188 lbs.)
MS6R-1000-CH 113cm(44.5”) 61cm(24”) 38.1cm(15”) 85kg(188 lbs.)

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3 TERMINALS
CONTROL POWER INPUT
1 Control Power Line 1 (120VAC ±10%)
2 Control Power Neutral Power for the control card and also for
the cooling fans on units below 500A
120VAC INPUT LOGIC
3 Start Input – 120VAC Momentary normally open switch for 3
wire control. Maintained normally open
switch for 2 wire control
4 Stop Input(three wire control) / DCI or
Soft Stop Enable(two wire control) -
120VAC
Momentary normally closed switch for 3
wire control. Maintained normally open
switch used to enable or disable a
selected stop mode in 2 wire control.
5 Jog Input – 120VAC Maintained normally open switch used
to activate jog function
6 Reverse Input – 120VAC Maintained normally open switch used
to activate reverse function (if installed).
If activated along with JOG the unit will
run in reverse jog mode
7 Reset Input – 120VAC Momentary normally open switch use to
reset a fault
8 Enable Input – 120VAC Maintained normally open switch used
to enable unit operation. Unit will not
run if this input is not active. If opened
while running the unit will coast to a
stop no matter what stopping method is
choosen. If this input is active and all 3
incoming phases are valid a green
indicator will be illuminated on the
keypad.
9 Input Neutral Neutral for 120VAC control signals

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DRY CONTACT RELAY OUTPUTS
10 Fault Relay Common
11 Fault Relay N.C.
12 Fault Relay N.O.
The fault relay is energized in a NO
Fault condition. In a fault condition or
a case of power loss the relay will de-
energize and the contacts will go to
there normal condition indicating a
fault.
13 Bypass Relay Common
14 Bypass Relay N.O. This relay is used to control a by-pass
contactor either directly or indirectly if
the coil current of the by-pass contactor
is to large (>5amps). This relay will
energize once the Opal Pro has phased
full on and the motor current has
dropped below 110% of the nameplate
current.
15 Shorted SCR Relay Common
16 Shorted SCR Relay N.C.
17 Shorted SCR Relay N.O.
This relay is energized when a shorted
SCR is detected and should be used to
trip a shunt trip breaker.
18 Run Relay Common
19 Run Relay N.O. This relay is energized when the unit is
running
20 Reverse Relay Common
21 Reverse Relay N.O. This relay is energized when the unit is
running is the reverse mode
ANALOG I/O (not isolated)
22 Analog Input ( 0 to 10VDC)
23 Analog Common
24 Analog Output (0 to 5VDC, max 5mA)
25 Analog Common

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4 KEY PAD OPERATION
Actual Mode This is the mode that the unit will be in on power up. If the unit is healthy the actual
motor current will be displayed in Amps. If the unit is faulted the fault will be
displayed in text format. If the unit is faulted and the user enters any of the other
display modes the unit will automatically return to this mode and display the fault
every 15 seconds. If the “MENU” key is pressed in this mode the user will enter the
Group mode. If you are in the Group Mode you can return to the Actual Mode by
pressing the “MENU” key.
Group Mode This mode allows the user to scroll through the different parameter groups using the
up and down arrow keys. This mode can be accessed from either the Actual Mode
or Parameter Mode by pressing the “MENU” key. If the “ENTER” key is pressed in
this mode you will enter the Parameter mode and be able to view the parameters of
the current group that is being displayed.
Parameter Mode This mode allows the user to view and modify the individual parameters in a
particular group. The parameters can be scrolled through using the up and down
arrow keys. If a parameter is to be modified the “ENTER” key must be pressed and
the parameter value will now blink. At this point it is possible to change the
parameter setting using the up and down arrow keys. When the desired setting is
reached the “ENTER” key should be pressed again and the blinking of the parameter
will now stop and the new parameter setting will be saved. To return to the Group
mode the “MENU” key should be pressed.
Reset Key This key will reset any fault as long as the fault has no longer exists.
Local/Remote Key This key switches the unit between local and remote control. Local or Remote mode
is displayed via LED. In local the unit can be started from the keypad. In local
mode the start and stop commands from the terminal strip or communication module
are ignored. In Remote mode, the terminal strip becomes active.
Start Stop Key
This key is used to start and stop the motor in local mode. You still need the Enable signal at the terminal strip.
Red LED This LED will be illuminated during a fault condition or during initial power-up
Green LED This LED will be illuminated when the starter is ready to be started. This includes
the ENABLE signal being active and also having valid three phase power.

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5 INSTALLATION AND START-UP
5.1 INSPECTION
•The Opal Pro has been packaged to protect it from damage caused by normal handling
during shipment, however mishandling may cause damage to the Opal Pro. Unpack the unit
as soon as it is received and check for any shipping or storage damages.
•If damage is found, notify the carrier. Any damage claim must be filed by the customer
since all shipments are F.O.B. Manufacturers plant unless otherwise specified.
•If the Opal Pro is not installed when received, store it in a clean, dry, well ventilated area,
free from heat, humidity, oil, dust, and metal particles.
5.2 SAFETY PRECAUTIONS CAUTION
Equipment is at line voltage when AC power is connected.
Pressing "STOP" pushbutton does not remove AC mains potential.
All phases must be disconnected before it is safe to work on machinery, touch motor terminals or
control equipment parts.
•The electrical code requires all equipment, starter, motor, operator station, etc. to be
grounded properly.
•An incoming circuit breaker or disconnect switch must be locked open before wiring or
servicing this starter, motor, or other related equipment. This equipment must be installed
and serviced only by qualified personnel, familiar with this starter.
•The user is responsible for ensuring that proper short circuit protection is provided by either
a circuit breaker or HRC fuses.
5.3 MOUNTING GUIDELINES
•Standard Nema 1 Opal Pro Starters must be installed indoors in a well ventilated area, free
from heat, humidity, oil, dust and metal particles.
•One foot of clearance must be kept all around in a natural cooled unit. The equipment must
be mounted away from any heat source. See Section 2 for additional specifications.
•Be aware that the heatsink may reach 70° C / 158°F during normal operation. Do not
install the starter in contact with any material that cannot accept this temperature.
•The starter must be mounted vertically and where it will not experience excessive shock or
vibration.

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5.4 WIRING GUIDELINES
•The electrical code requires that an approved circuit disconnecting device be installed in the
incoming AC supply circuit. Mounted in a location readily accessible to personnel
installing or servicing this equipment.
•Power factor correcting capacitors MUST NOT be connected to the OPAL output. If
desired, they may be added ahead of the starter. Capacitors can be connected before
starting or after the motor has reached full speed.
•In-line contactors are not required; however they can be used on the line side or the motor
side without detriment to the starter. It is recommended that the contactor be sequenced to
open and close under no-load conditions to prolong the life of the contacts.
•Size the power wiring as per local code. On long wire runs it is recommended to use a
larger wire size.
•All three phases of the incoming power wires must pass through the same hole in the
enclosure. This rule also applies to all phases of the outgoing or motor wires.
•If an electro-mechanical brake is used in the system, it must be powered from the line side
of the starter, to ensure full voltage to the brake.

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5.5 START-UP
5.5.1 BEFORE POWER-UP
•Ensure that all electrical connections are completed as shown on the schematics, and that
connections are properly tightened. Including a solid ground connection.
5.5.2 WITH POWER ON
•Check 120VAC control voltage to terminals 1 & 2 of the Opal Pro
•Set parameter 1001 to the control scheme desired
•Set parameter 1002 to the ramp time desired (set to 0 for constant current mode)
•Set parameter 1003 to step current required (set to required current for constant current
mode)
•Set group 11 parameters for desired stopping method and setup
•Set parameter 1301 to motor full load current as read from the motor nameplate
•Set parameter 1302 to the motor nameplate voltage
•Set parameter 1303 to the motor nameplate service factor
•Set group 14 parameters if a communication module is installed on the Opal Pro
•Set group 15 parameters for the desired fault conditions
•Check for the red LED on the keypad to be NOT illuminated (if it is illuminated there is a
fault which will be shown on the LCD display of the keypad)
•Check for the green LED on the keypad to be illuminated (if it is not, the ENABLE signal
(terminal 8) is missing or there is a problem with the incoming 3 phase power)
•Once start has been initiated the motor must start rotating immediately, it must not stall. If
it does not rotate immediately the step current (parameter 1003) must be increased
•Parameter 1002 can be adjusted to extend or decrease the acceleration time. The actual
motor accelerating time depends on the motor current as well as the mechanical load. The
acceleration time entered is the amount of time it will take for the current to increase from
the step setting to 500% of the nameplate current

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6 FAULTS
Fault (display) Description
IOC Instantaneous Over Current
-Current has reached a value of 1000% of stack size
-Usually a short circuit on the output or misfiring of SCR’s
-This fault cannot be disabled
MTR OVRLD Motor Thermal Overload (calculated)
-motor has been drawing over 100% of motor nameplate current
for a specified amount of time based on the class of overload
selected in group 15 parameter 2
-after this fault has occurred the Opal Pro will not allow a reset
for approx. 6 minutes (this is to allow the motor to cool down)
-this fault can be disabled in group 15 parameter 2
PHASE LOSS Incoming Phase Loss
-one of the incoming phases is missing or abnormally low
-phase voltages can be read in group 1 parameters 2, 3, and 4
-this fault will not be triggered until the motor is commanded to
start
-this fault cannot be disabled
SHEAR PIN Excessive Motor Current While Running
-if the Opal Pro is phased fully on and the motor is up to speed
this fault will be triggered if the current goes above 300%
-this fault can be disabled in group 15 parameter 1
SHORTED SCR Shorted SCR Fault
-this fault will not be triggered until the motor is commanded to
start
-this fault cannot be disabled
HEAT SINK OT Heat Sink Over Temperature
-One of three temperature switches mounted on the heat sink has
been triggered
-These switches trigger at approx. 85 degrees Celsius
-The switches are only mounted on units which include fans
-This fault cannot be disabled
COMM FLT Communication Fault
-a loss of communication between the Opal Pro and the master
device has been detected based on a watch dog bit that is sent
back an forth
-this fault is disabled when no communication cards are installed
on the Opal Pro
-this fault can also be disabled in group 15 parameter 3
-the time delay for the watch dog bit can be set in group 15
parameter 4
POWERING UP Power Up Sequence
-the Opal Pro will be faulted for the first 6 seconds after the
120VAC control power is applied
-this allows time for everything to initialize and then a fault reset
is automatically applied at the end of the 6 seconds