1. The drive will not start. When I cycle power to the drive, it will start and ramp up and down fine, but after I stop the drive, it will not start up again. If it does start, it will ramp up to about 5-10 hz, oscillate for a few seconds, and usually trip out on overload. What could be the problem?
2. Why can I not get 0 milliamps out of the drives analog output?
3. How do I read the INPUT STATUS on the HIM, all I see are two rows of ones and zeros?
4. EEPROM faults occurring when pressing the enter key to store a program change (either F32, F54 or F66).
5. I have an L6 option board on my 1336 PLUS II drive and I have wired my drive for 2-wire control. I set parameter 241 (INPUT MODE) to "2-wire" control but the drive will not run when I give it a start command, the HIM has no faults.
6. How do I get the analog trim to work when I'm using LA5 card with a pulsed input?
7. What speed range does the drive consider to be "At Speed" when the drive is running at a constant speed?
8. What is the analog I/O resolution on this drive?
9. How is the potentiometer input is set up? Are the inputs scaled from lo to hi at 5 volts? Do we need a ground reference to signal common to get the proper scaling or is that only for pot loss detection?
10. Drive display shows "NOT ENABLED", and wont do anything.
11. What will happen if I am using an L6 card, and hook up the 120 volt inputs backwards?
12. Are all the commons tied together in some way, or should I connect them all myself?
13. Where are the DIP switches on the PLUS II LA Option boards?
14. My 1336F (Plus II) seems to have unstable output, and see the output current pulsating, causing the motor to do the same thing, what can I do to stabilize it?
15. Why will Passport not accept the lug kits from the 1336 PLUS 5.3 User Manual?
16. Why can I not add a HIM to a fractional drive?
17. How can I add another HIM as well as a communications module?
18. What does the option -Q mean when its on the end of a drive catalog string?

1.
Q? The drive will not start. When I cycle power to the drive, it will start and ramp up and down fine, but after I stop the drive, it will not start up again. If it does start, it will ramp up to about 5-10 hz, oscillate for a few seconds, and usually trip out on overload. What could be the problem?
A! This is a classic case of the sensorless vector not being tuned or tuned incorrectly. The motor windings get saturated, which will make voltage drop to almost zero, and current will go through the roof. You can verify this in the output amps parameter. What you will want to do is put in all of the motor nameplate data into the drive first. If you want a more less default value for sensorless vector, put the value of "0.5" amps in the parameter 192. Then put in a value of "1" volt for parameter 194. If you do not want to try these values, go back to the Startup section in the manual, and tune in your sensorless vector according to the manual. See if this cures the problem. In most cases it does. If it does not, then change the parameter 9 from "Sens Vector" to "Fixed Boost". Then put in about "10" volts in parameter 48 and "5" volts in parameter 83.

2.
Q? Why can I not get 0 milliamps out of the drives analog output?
A! Incorrect jumper settings are usually the culprit. Make sure the jumpers on the main control board and/or the LA option board are set properly for the 0-20 mA operation. Also insure that the following parameters are setup for the application: parameter 25 / 274 parameter 154 / 278 parameter 234 / 275 parameter 235 / 276

3.
Q? How do I read the INPUT STATUS on the HIM, all I see are two rows of ones and zeros?
A! If you have a 1336 PLUS series drive and you read parameter 55 (INPUT STATUS) and it returns the following values on the HIM, the upper row is 01110110 and the lower row is 00000011. To read the data the lower row (00000011) has bits 00 and bits 01 are ones, and if we refer to the manual that would indicate that there is power on TB3-19 and TB3-20. To read the INPUT STATUS on the HIM, the bits are setup to be read from the lower right hand side (bit 00) to the lower left hand side (bit 07), then the upper right hand side (bit 08) to the upper left hand side (bit 15). This same question applies to the 1336 Plus, 1336 Plus II, and the 1305.

4.
Q? EEPROM faults occurring when pressing the enter key to store a program change (either F32, F54 or F66).
A! A change was made to the cable going from the Main Control Board to the Base Driver Board eliminating the small ferrite core that a few wires ran through. For some installations, due to noise, this apparently is still needed to prevent the faults from occurring. Recent case problems were solved by changing to the cable with the core installed.

5.
Q? I have an L6 option board on my 1336 PLUS II drive and I have wired my drive for 2-wire control. I set parameter 241 (INPUT MODE) to "2-wire" control but the drive will not run when I give it a start command, the HIM has no faults.
A! For the drive to work in 2-wire control, set parameter 241 and then the power to the drive must be cycled. When turning the power off to the drive you must wait 60 seconds or wait until the lights on the control board go off, before reapplying power to the drive. If that has been done, then check the parameter 94 and make sure it reads as follows "01111111". The default setting is "01111110", which will NOT allow direction control from TB3, which is necessary for the drive to run in two wire control. The same applies to the 1336 Plus, and the 1305 drive.

6.
Q? How do I get the analog trim to work when I'm using LA5 card with a pulsed input?
A! The analog trim does not work with a pulsed input because a pulsed input is a digital signal not analog.

7.
Q? What speed range does the drive consider to be "At Speed" when the drive is running at a constant speed?
A! It will remain at speed while sitting at one frequency with a 'window' of +/- 0.83% of Max Frequency.

8.
Q? What is the analog I/O resolution on this drive?
A! We utilize a 12 bit resolution on the output, and slightly less than 10 bit resolution (9.8) for the input.

9.
Q? How is the potentiometer input is set up? Are the inputs scaled from lo to hi at 5 volts? Do we need a ground reference to signal common to get the proper scaling or is that only for pot loss detection?
A! A 10k ohm potentiometer is REQUIRED. The source is 5 Volts through a 2.67k ohm resistor. Yes, the ground reference must be used. With all three from the 10k ohm potentiometer and J8, 11, or 13 in the POT position, zero ohms will be zero speed and 10k ohms will be full speed. Scaling can be adjusted from there. Parameter 250, needs to be set up to get an "Open Pot Fault" F09.

10.
Q? Drive display shows "NOT ENABLED", and wont do anything.
A! This is because TB3 Terminal 30 is not making a true contact. Make terminal 30 true (closed connection), and this should go away. If it does not, it could mean a faulty control interface card. If there is no control card, then make sure the jumpers have been installed properly on the Main Control Board where the control interface card normally sits.

11.
Q? What will happen if I am using an L6 card, and hook up the 120 volt inputs backwards?
A! Chances are you are going to take out your Switching Mode Power Supply. This is located on the precharge board. Replace it accordingly.

12.
Q? Are all the commons tied together in some way, or should I connect them all myself?
A! All the commons are tied together internally. There is no need to connect them together externally. The same applies for the 1336S, 1305, and the Bulletin 160.

13.
Q? Where are the DIP switches on the PLUS II LA Option boards?
A! The DIP switches on the on the option boards are located on the underside. To change their position, the drive must be powered down, and the LA Option board removed to accomplish this task.

14.
Q? My 1336F (Plus II) seems to have unstable output, and see the output current pulsating, causing the motor to do the same thing, what can I do to stabilize it?
A! Torque enhancements in Plus II software has shown to be more unstable at some frequencies than the Plus drives, causing torque pulsations. In the latest release of Plus II software, FRN 2.004, a parameter was added called Stability Gain (parameter 324 in Linear List). To set up the drive properly, install the main control board with 2.004. Do an autotune (in sensorless vector mode). Then adjust the stability gain for the most stable operation. This parameter can be adjusted from 0 to 16. It is important that the parameter is not set too high, as this may cause additional instability. It should be set for the lowest value that eliminates the instability.

15.
Q? Why will Passport not accept the lug kits from the 1336 PLUS 5.3 User Manual?
A! The lug kits were never released. Most distributors have T&B or other similar lugs in stock so there was no reason to duplicate the items at a higher price. The User Manual also has the T&B cross-reference number for the customer's convenience.

16.
Q? Why can I not add a HIM to a fractional drive?
A! If the catalog number includes the snap in communications module (-GMSx) it uses the same space and connector that the HIM module would normally use. Possible solutions are using a separate communications module (1336-GMx or 1336-GKx) or use a hand held or remote mounted HIM plugged into the communications port.

17.
Q? How can I add another HIM as well as a communications module?
A! Port expanders are available in two (1203-SG2) or four port (1203-SG4) units. In addition, a two port splitter cable (1203-S03) is available. The port designations are marked on the units.

18.
Q? What does the option -Q mean when its on the end of a drive catalog string?
A! Any catalog number for a 1336 Plus II that has a "-Q" means Quick ship. Ordering a replacement drive without the -Q is fine.