Resistant White Electric | Residual Current Circuit Breaker, 2 Pole, 20A, 30mA, Less Enclosure

Issue:
SCF4 fault on ATV12 drives

Product Line:
Altivar ATV12

Environment:
All

Cause:
ATV12 drive is powering up with an SCF4 fault.

Resolution:
SCF4 means IGBT short circuit fault.
Possible issues: Internal power component short circuit detected at power on.  The drive may need to be replaced if the fault is coming up on power up. Check for any exploded/burnt electrical components on the drive. Also try running the drive without the motor leads connected and see if the fault persists. 

A static check can be performed on the drive:

Checking The Input and Output Diode Bridges
This test is done using a digital multi-meter in diode test mode to check that the transistors and diodes are not short-circuited. 


ALL TESTS ARE TO BE PERFORMED WITH ALL SOURCES OF POWER REMOVED FROM THE DRIVE

For Altivar Drive up to 25hp

• Instrument
  • Use Digit-Meter with a diode scale
• Measurement
  • ​Locate PA+ and PC- input on drive power terminals (should be close to your power connection terminals)
  • Set meter to diode scale
  • To measure Input diodes
    • Place black on positive bus (PA+) and red on L1
    • Get readings and then move to L2 and then L3 
    • When done swap red and black probes and measure again between (PA+) to L1...L3
    • Readings should be OL in one direction and a low voltage reading the other way (Example 0.3v)
  • To measure Output diodes
    • Place black on positive bus (PA+) and red on T1
    • Get readings and then move to T2 and then T3 
    • When done swap red and black probes and measure again between (PA+) to T1...T3
    • Readings should be OL in one direction and a low voltage reading the other way (Example 0.3v)

For Altivar Drive over 25hp

• Drive uses SCRs on the positive input bridge and diodes on the negative. For the Output Bridge its all diodes.
• Instrument
  • Use Digit-Meter with an ohm and a diode scale
• Measurement
  • ​Locate PA+ and PC- input on drive power terminals (should be close to your power connection terminals)
  • To measure Input SCRs and diodes.
    • Set meter to ohm scale
    • Place black on positive bus (PA+) and red on L1
    • Get readings and then move to L2 and then L3 
    • When done swap red and black probes and measure again between (PA+) to L1...L3
    • Readings should be at least 50kohms.
    • Set meter to diode scale
    • Place black on positive bus (PC-) and red on L1
    • Get readings and then move to L2 and then L3 
    • When done swap red and black probes and measure again between (PC-) to L1...L3
    • Readings should be OL in one direction and a low voltage reading the other way (Example 0.3v)
  • To measure Output diodes
    • Place black on positive bus (PA+) and red on T1
    • Get readings and then move to T2 and then T3 
    • When done swap red and black probes and measure again between (PA+) to T1...T3
    • Readings should be OL in one direction and a low voltage reading the other way (Example 0.3v)

Issue:
Selection of key interlock and provisions for the Masterpact NW circuit breaker.

Product Line:
Masterpact NW

Resolution:
The Masterpact NW breaker requires 1 or 2, p/n: KC40---10 (type CN22).  
Order directly from Kirk:  
 Kirk Key Interlock, 9048 Meridian Circle NW, North Canton, OH  44720
Toll free: (800)438-2442, Phone: (234)209-9301, Fax: (330)497-4400
www.kirkkey.com

Field Installable Provisions;
Provision for 2 Locks on Cradle: S48565 (Install Bulletin 48049-156-02)
Provision for 2 Locks on Breaker: S48542 (Install Bulletin 48049-197-02)

Can also order Lock with provision (part numbers below):

S48923 is one Kirk Key lock for cradle locking
S48924 is two Kirk Key locks (keyed alike) for cradle locking
S48925 is two Kirk Key locks (keyed differently) for cradle locking
S48945 is one Kirk Key lock for circuit breaker locking
S48946 is two Kirk Key locks (keyed alike) for circuit breaker locking
S48947 is two Kirk Key locks (keyed differently) for circuit breaker locking

A lock order form must be submitted with the order. See 0613DB1607 for this order form. 

Link to catalog:

https://www.schneider-electric.us/en/download/document/0613DB1607/
 

Issue:

What is the proper installation of a telephone line into an APC product with telephone line protection? FYI; Please check that the APC product you have purchased supports telephone protection. This can be confirmed in the products user manual. (Please note that if a product does not say it supports dual phone lines then it is to be assumed to only have single line protection.

Product Line:

Surge, Back-UPS and Back-UPS PRO units with Telephone protection.

Environment:

N/A

Cause:

N/A

Resolution:

Please check that the APC product you have purchased supports telephone protection. This can be confirmed in the products user manual. (Please note that if a product does not say it supports dual phone lines then it is to be assumed to only have single line protection.)

You will need:
1. An unused telephone connection
2. An APC product with telephone line protection.
3. At least 2 telephone patch cables. (One of which is sometimes provided with the APC product see product documentation for details)
4. A telephone, Fax machine or dial-up modem.

Basic Configuration:

1. Attach one side of a telephone patch cable to the telephone jack in the wall and the other side to the ""in"" jack on the APC product (""In"" jack may also be labeled ""Wall outlet"" or be denoted by a circle with an arrow pointing into it.)

2. Next, attach the second patch cable from Out jack (out  jack may also be labeled ""Modem, fax, phone"" or be denoted by a circle with and arrow pointing out of it.)

3. Test the equipment to see if it is usable.

If you wish to split the signal, it is recommended that the splitter be placed after the APC product, in order to fully protect all devices for potentially damaging surges.


Problems?
If you have done the above and your device is still not working, listed below are several tips to help correct the issue.

1. You have 2 separate telephone lines and now since you have hooked the APC product up properly, one of the two lines does not work. You have likely purchase the incorrect APC product for your configuration. Only products that state they have 2-line 4 wire protection will be able to pass 2 phone lines.

2. If You have hooked it up and it still does not work then:
- Make sure the patch cables are all the way in.
- Confirm that the telephone patch cables are attached to the correct jacks.
- Try to replace the telephone patch cable. May be one or both are bad.
- Contact APC tech support for further troubleshooting and/or a possible replacement. Include the model and serial number of the APC product.