MICRO COMM

A: This indicates that the display is either not receiving any data from the driver, or something is keeping the data from being recognized.

1. This will happen when there is no communication between the MICRO COMM® driver and the display.
   Refer to this article (link) >>> Q: Why does my display show “2V”? (Some older displays may show “OK” instead.)

A: This indicates that the display is either not receiving any data from the driver, or something is keeping the data from being recognized.

1. This will happen when there is no communication between the MICRO COMM® driver and the display. Follow the troubleshooting steps in section 1.b. to track down the problem.

A: This is usually caused by improper addressing of the lantern unit or having the incorrect gong attached to the gong output.  If all dip switches are in the OFF position, the unit listens to travel arrow signals and will light the arrow, but never sound the gong.

1. Make sure that the binary floor address is properly set on the S1 bank of dip switches.  The bottom floor, regardless of its label, is always considered floor 1.
2. Make sure that the gong that is connected to the lantern is the TG024-BFM and has the orange connector that mates to the orange connector on the gong output of the lantern.  The use of any other gong can damage the gong output circuit of the lantern and will void the warranty.

A: This normally happens when the two black wires from the unit are connected together.

1. This unit constantly maintains +24vdc to the RED and GRN wires, and when the appropriate arrival signal is received, it connects the corresponding BLK wire to GND.  If you only have one common wire for your lantern, then connect the RED and GRN wires together to the lantern common, then connect the BLK wire that was paired with the GRN wire to the UP lantern and the BLK wire that was paired with the RED wire to the DOWN lantern.

A: This is usually caused by improper addressing of the M3491 unit.  If all dip switches are in the OFF position, the unit listens to travel arrow signals and will light the arrow, but never sound the gong.

1. If the unit is mounted in the hall, make sure that the binary floor address is properly set on the S1 and S2 bank of dip switches.  The bottom floor, regardless of its label, is always considered floor 1.
2. If the unit is mounted in the car, make sure that the binary floor address is set to 127 (S1, 3 – 8 and S2, 1 set to ON).

A: The J3 connector on the VM3541 board is not an output to drive up and down arrows, it is an input only that can be set up to allow discrete signals to activate the up / down arrivals (going up / going down) and the play strobe to trigger the floor announcement, if there is no easy way to provide these signals to the MICRO COMM® driver.

A: This can be caused by an incorrect dip switch setting on the MICRO COMM® driver / interface board or by mismatched programming.

1. This happens quite often with a Galaxy III or IV controller. Make sure that dips 2, 3, and 5 of the interface board are in the ON position.
2. This can also happen when the programming is mismatched. Please contact C.E. Electronics tech support department to determine if the voice programming matches the messages required for your job.

A: There are several causes for this problem, ranging from missing signals to mismatched programming.

1. The first thing to look for is the presence of a signal that we call “Door Strobe” or “Play Strobe”.  This signal is usually provided by the MICRO COMM® driver.  How this is done depends greatly on which driver you have.
   • If you have an MCCA type driver, make sure that the correct voltage is applied to the J2 Strobe connector between STR and COM when you want the voice to announce (i.e. when the doors open).  If the voltage is present when the doors are closed and drops out when the doors open, then set S1 dip 3 of the MCCA to the ON position.
   • If you have an SMCDU type driver, make sure that there is an MAMM1 board attached to the J4 Message connector, S1 dip 4 of the SMCDU is in the ON position, and that the correct voltage is applied to the JP2 connector of the MAMM1 board between MSG8 and COM when you want the voice to announce.
   • If you have a direct interface installed in an MCE, EC, Thyssen, etc. controller, then you may need to contact the controller manufacturer to ensure that the correct parameters are properly set in the controller software.  If you have a G.A.L. Galaxy III or IV controller, make sure that dips 2, 3, and 5 of the interface board are in the ON position.
   • If the floors on the VM3541 display show “01”, “02”, “0L”, etc., it will not recognize these characters, because it is looking for “1”, “2”, “L”, etc.  This is likely due to a programming error in the elevator controller software.  All floor characters in the controller should be programmed as “bb1”, “bb2”, “bbL”, etc., where “bb” means two blank spaces in the hundreds and tens locations.  You may need to contact your controller manufacturer for instructions on how to change this.
2. If all of the previous steps do not solve the problem, then please contact C.E. Electronics technical support department to determine if the voice programming matches the floor markings for your job.

A: The “NC” means No Communication.

1. This will happen when there is no communication between the MICRO COMM® driver and the VM3541. Follow the troubleshooting steps in section 1.b. to track down the problem.

A: This means that either the lantern or the gong are not set to “car riding lantern” mode.

1. If you have an SA125/SA130-XMXXX mounted in the car, make sure that dip switches 3 through 8 are in the ON position and the R10/R31 resistor has been cut loose from the board. The R10/R31 will be located in a group. Refer to the SA125/SA130 diagram for the location of the resistor group. It is the middle resistor and will have “64” silk screened next to it on the board.
2. If you have an M3491-X or INN3491-X, then set S1 dip switches 3 through 8 and S2 dip switch 1 to the ON position.
3. If you have an MGONG-XX, the set S1 dip switches 3 through 8 to the ON position. You will also need to remove the cover from the gong box and cut loose the resistor with “64” silk screened next to it on the board.  Refer to the MGONG diagram for the location of the “64” resistor.

A: This is an error message that is generated by the MCE M2000 or M4000 controller. You will need to contact tech support at Motion Control Engineering to troubleshoot the problem.

A: The “NC” means No Communication.

1. This will generally appear if you have an MCE M2000 or M4000 controller with a built in CE interface board and means there is no communication between the interface board and the controller, but the connection to the remote display is fine.  You will need to contact tech support at Motion Control Engineering to troubleshoot the problem.
2. This may also happen if you have a Thyssen TAC20/32/50 controller using the THY02 interface board and normally means there is no communication between the interface board and the controller.

A: This indicates that the driver and displays are not compatible.

1. This is usually caused by a software mismatch.  If the processor on your driver (MCCA or SMCDU) is P333 or higher, and the processor on your display begins with an M, then you either need a new display or software translator board called an MC2000.
2. The other cause for this condition is trying to drive non-CE Electronics displays with a MICRO COMM® driver. If this is the case, please contact someone in either our tech support or sales department and they will assist you with selecting the correct replacement.

A: This indicates that the display is either not receiving any data from the driver, or something is keeping the data from being recognized.

1. Check the voltage between terminals 1 and 3 (or the BLK wire and WHT wire if your display has a pigtail) with your meter set to DC volts.  Put your black meter lead to terminal 1 (or BLK wire) and your red meter lead to terminal 3 (or WHT wire).  You should see voltage that fluctuates between +1.4vdc and +2.2vdc.  If the voltage is correct, but is negative, or if the voltage fluctuates between +3vdc and +4vdc, then swap the wires between terminals 1 and 3 (or BLK and WHT).
2. If the voltage between terminals 1 and 3 is less than +1vdc, then check the plug-in data protection resistor next to the MICRO COMM® output connector on the driver (R17 on the SMCDU and R46 on the MCCA).  Unplug the output connector, remove the resistor, and measure its value with your meter on Ohms.  It should read 51Ω ±5Ω, if it doesn’t, then it needs to be replaced.  If it reads correctly, then your driver needs to be repaired or replaced.
3. If the voltage between terminals 1 and 3 is around +8vdc, then your driver needs to be repaired or replaced.
4. If the voltage between terminals 1 and 3 is correct, then your display probably needs repaired or replaced.

A: This normally means that the MICRO COMM® driver is either getting no floor signals or the signals are the wrong voltage and/or polarity.

1. If you have an SMCDU-XXX driver, the value of the R1 – R10 resistors will determine the signal voltage it is expecting. For 6 to 20 VAC/DC the value will be 820Ω (grey, red, brown, gold); for 24VAC/DC the value will be 6.8KΩ (blue, grey, red, gold); for 120VAC the value will be 18KΩ (brown, grey, orange, gold); and for 125VDC the value will be 39KΩ (orange, white, orange, gold).  If you are not using a binary decoder with the SMCDU it will work with positive or negative DC signals, just make certain that the GRN/BLK and/or the GRN/WHT wires have been connected to the correct return for the floor signals.
2. If you have an MCCA-XXXXXXX driver, the value of the R1 – R13 resistors will determine the signal voltage it is expecting.  The values and color codes are the same as the SMCDU.  If the signal voltage is AC, then the MCCA will not care about polarity, but if the signal voltage is DC, then it must match the way the board was built.  The second character in the part number (MCCA-4XXXXXX) will tell you what voltage and DC polarity it was set up for.
   1. A = +6 to 20 VAC/DC
   2. B = +24 to 48 VAC/DC
   3. C = 120VAC (will always expect a +DC voltage)
   4. D = +125 VDC
   5. E = -6 to 20 VAC/DC
   6. F = -24 to 48 VAC/DC
   7. G = -125 VDC

If your signal voltage is DC and you have the wrong polarity board, you will need to contact someone in our sales department and order a new board that is set up for the correct polarity.