White Electric | Automatic Single Socket Outlet, 250VAC, 10A, 1 Pole

Issue:
Can Multi-9 C60 breakers be continuously loaded to 100% of their rating?

Product Line:
Multi 9 C60 MCB's

Resolution:
UL 489 Listed Multi 9 C60 circuit breakers may be loaded to no more than 80% if used with continuous loads.
UL 1077 recognized supplementary protectors may be operated at 100% of their rating.
IEC 60947-2 C60 breakers may be operated at 100% of their rating.

Issue:
Does the MICROLOGIC 6.0A / 6.0P / 6.0H trip unit have a ground fault test button and where is it?

Product Line:
Circuit Breakers

Resolution:
The Micrologic 6.0A, 6.0P and 6.0H trip units have a ground fault test button on the front of the trip unit that can be used to satisfy NEC230-95(c). The button is white with a ``T`` in the center of it, and is located between the Ii Instantaneous adjustment dial and the port for the secondary injection test kit cable. See the picture below showing the test button and the instructions below for the testing procedure to meet NEC230-95 (c). The latest requirements may require primary injection testing to verify the operation of the ground fault circuit. Your local inspector will indicate if this is required.

Equipment Ground-Fault Trip Functions Testing
Paragraph 230-95 (c) of the National Electrical Code requires that all equipment ground fault protection systems be tested when first installed. With the circuit breaker closed, test the ground fault trip functions. For instructions on how to close circuit breaker, refer to the circuit breaker installation instructions shipped with the circuit breaker. As of the 2017 NEC230-95(c), the ground fault system needs to primary injection tested. The Test button as described below is no longer accepted for the initial acceptance testing. However, if subsequent testing is desired, the Test button can be used.

Testing ground fault trip with the T test button
1. Make sure the trip unit is powered (it is powered when the trip unit screen shows a display). This can be done by either of the following methods:

• Apply 24 Vdc to terminals F1 and F2 on the green terminal strip on top of the trip unit (F2 positive). The trip unit will be powered all the time.
• Connect the trip unit to the Full Funciton Test Kit or Hand Held Test Kit. When the test kit is turned on, the trip unit is powered. 

2. Press the T ground fault test button. Circuit breaker should trip.
3. If circuit breaker does not trip, contact the local field office. 

Issue:
ATV61 or ATV71 running at low speed and not following the analog input signal

Product Line:
Altivar ATV61 and ATV71

Environment
All:

Cause:
Drive is not following the 0-10 or 4-20ma

Resolution:
-Make sure your Ref 1 in menu 1.6 matches your analog input AI1 or AI2 that you are trying to use.
-Measure between the analog input and COM and make sure that you're actually getting the signal that you think is being sent to the drive
-Make sure that the analog input is programmed for the type of signal (voltage or current) that you're using 
-If you are doing Reference switching make sure your logic is correct for switching between LI1 or LI2.
-Make sure you do not have any preset speeds turned on since hey will override your analog input signal.
-With the drive powered up and the customer's analog signal removed ohm across the A1 to com terminal and AI2 to com terminal to check the burden resistor values.  You should measure 30K ohms between Ai1 to com and 242 ohms between AI2 and com.
 

Issue:  
What is the operating voltage tolerance, catalog numbers, and clearing times for the Masterpact NT and NW shunt trip and shunt close coils?

Product Line:
Masterpact NT NW

Resolution:
Shunt trip: operating threshold is 0.7x to 1.1x Vn (nominal voltage)
Shunt close: operating threshold is 0.85x to 1.1x Vn
Catalog numbers are the same for MX and MN (shunt trip and shunt close) devices; function is determined by placement in the breaker.
 

Voltage (V) at 50/60 Hz	T-, W-, & Y-Frame Fixed	T-Frame Drawout	W- & Y-Frame Drawout
12 DC	S47359	S33809	S48490
24-30 AC/DC	S47360	S33810	S48491
48-60 AC/DC	S47361	S33811	S48492
100-130 AC/DC	S47362	S33812	S48493
200-240 AC/DC	S47363	S33813	S48494
277 AC	S47364	S33814	S48495
380-480 AC	S47365	S33815	S48496

MX operating time at Vn:  50 ms ±10 (NW and NT)
XF operating time at Vn:  
70 ms ±10 (NW ≤ 4000 A)
80 ms ±10 (NW > 4000 A)
55 ms (NT)

NOTE:  Shunt trip (MX) and shunt close (XF) circuits must be energized for a minimum of 200 ms. In other words, don't use an impulse signal. Use a signal of at least 200 ms.

Issue:
Connecting more than one VW3A1101 keypad to an ATV61, ATV71, ATV32, ATV312, or ATV212 series Drive

Product Line:
ATV61, ATV71, ATV32, ATV312, ATV212

Environment:
All models, all firmware versions capable of supporting the VW3A1101 keypad.

Cause:
Customer would like to have a VW3A1101 installed near the drive, and another VW3A1101 installed at a remote location, both connected to the same drive.

Resoultion:
This is not possible. The VW3A1101 keypad establishes a Modbus RTU connnection to the drive, with the keypad being the Modbus master. It is not possible to have multiple Modbus master devices connected to a single drive.
 

Issue:
How do you configure the ATV61 for BACnet communications?

Product Line:
Altivar 61 with optional BACnet option card.

Environment:
All

Cause:
BACnet setup assistance.

Resolution:
ATV61 implementation of BACnet:

Hardware:

New Part # VW3A3319 after 2011

Old Part # VW3A3315 before 2011

Compatible with the ATV61 only.  Will not work on an ATV71!

Requires V1.2 or higher software version inside the ATV61.

The new VW3A3319 option card has the preferred 4 pin screw terminal connector.
Pinouts for the new card.
A= -
B= +
Ground
Shield

The old VW3A3315 option card has a female DB9 connector.  This is not common in the BACnet world and causes problems on many installations.  Recommend Phoenix contact part # SUBCON-PLUS ref 2761389 or equal.

 

Pin 3 is -

Pin 4 is Ground (actually signal common)

Pin 7 is +

Option card also has 2 "Polarization switches".  These are used to connect the Pull Up and Pull Down resistors on the option card.  Only one device on the RS485 network needs to have these resistors connected in the circuit, and normally that is the controller.  Under normal conditions, leave them both in the Lower position (closer to the heat sink of the drive) unless there are network connection/reliability issues.

There are 8 DIP switches used to set the Address.  Acceptable addresses are between 1 and 127.  The address setting can be read via the keypad in menu 1.9.

Programming in the Drive:

Configuration is done under Menu 1.9: Communications, under the BACN submenu.

Address:   Read only parameter.  Displays the address set by the DIP Switches on the card.

Bit Rate:  Sets the speed of communication between the drive and the client.  Options are AUTO, 9600, 19200, 38400, and 76800.  Default is AUTO.  All devices on the RS485 network must communicate at the same Bit Rate (also known as Baud Rate).

Format:  Read only parameter, this is fixed at 8-N-1.  Stands for 8 Data bits, No Parity, and 1 Stop bit.   All devices on the RS485 network must be set to the same format.

Time-Out:  Adjustable between 0.1 and 60.0 seconds (1 to 600 tenths).  Sets the time before the drive will "Time Out" indicating a loss of communication with the controller.

Instance Number:  Adjustable between 0 and 4194303.  This must be unique for each device on the network, and we recommend it be set higher than the Address.

Max Devices:  Adjustable between 0 and 127.  Sets the Maximum number of devices allowed on the network.   Reducing this number can improve network speed and data through put.

Max Info Frames:  Adjustable between 1 and 100.  Sets the time period (# of Frames) that the drive "owns" the Token.   Lower numbers will increase network speed, but may not allow the drive to update all parameters on one scan.  Higher numbers will allow full data transfer, but slower update times. Factory default is supposed to be 10, but we've had several reports of this being set to 1, which causes problems.

Data rate used:  Read Only.  Displays the Bit rate (Baud rate) the drive is actually communicating at.  Useful if using the AUTO setting for Bit Rate.

Frame Counter:  Read Only.  Displays the total number of Frames received by the drive sine the last power on.  If this number is very low, or not increasing, then it indicates network problems.

Invalid Frame Counter:  Read Only. Displays the number of bad frames received since the last power on.  If this number is High or increasing rapidly it indicates network problems.

 

 

Experience with the BACnet cards so far:

Difficulty connecting to some controllers (Alerton) at 76800.   Reducing the Bit Rate to 38400 or less seems to correct this issue.   France is checking into this.

Auto Bit Rate setting doesn't always work:   Can happen if there is noise or distortion on the network.  Programming the actual Bit Rate used helps.

8 Series and I/O Profile settings are not supported by the BACnet Option card on ATV61.

ILF (Internal Com.link fault) indicates a problem with the drive or option card.  Go to menu 1.10:Diagnostics under More Fault Info to get the details on ATV61

As with all other networks, duplicate addresses and/or duplicate Instance ID's will cause lots of problems.

Proper cable routing must be followed.  Keep network cable away from power wiring, especially the motor leads.

Improper Grounding can be a significant source of noise.  Make sure the drive and the motor are grounded properly.