Question about Inverter Siemens Micromaster 440

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Immediately vsd is energized output contacts 19 and 20 are closing that is without a run command from the profibus. why is the contact closing?

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Depends what you have digital output 1(terminals 19/20) programed as. Check P0731

Posted on May 19, 2014

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?Had a new starter and new battery put on my 1999 Chevy Tahoe.. we by it starts sometimes and sometime it don't..what could the problem be


I'm assuming just by the fact you had a new battery and new starter that sometimes when you turn the key to the start position , nothing happens . Is your vehicle a automatic transmission ? When it doesn't start have checked for battery voltage at the starter solenoid S terminal ? Is there B+ voltage at pins 30 & 86 for the starter relay ? Pin 86 while cranking the engine or trying to crank the engine over . Pin 30 check with key on . Try moving gear selector to neutral . Videos on youtube for basic automotive electrical testing . How to voltage drop test starter motor circuit Find a wiring diagram at www.bbbind.com
Starting System Circuit Description
Voltage is applied at all times to the ignition switch from the IGN A fuse 6 through CKT 242 (RED). When the ignition switch is turned to the START position, voltage is applied to the CRANK fuse 8 through CKT 5 (YEL). From the CRANK fuse 8, voltage is either applied to the clutch pedal position switch (M/T) or the transmission range switch (A/T) through CKT 806 (PPL). When either the clutch is disengaged (M/T) or the transmission is in park or neutral (A/T), voltage is applied to the coil of the starter relay through CKT 1035 (PPL/WHT). Since the starter relay is permanently grounded at ground G105 through CKT 150 (BLK), the starter relay energizes.
Voltage is applied at all times to the starter relay contacts from IGN A fuse 6 through CKT 242 (RED). When the starter relay energizes, the starter relay contacts close, and voltage is applied to the starter motor solenoid. Since the starter motor solenoid is permanently case grounded, the starter motor solenoid will energize two coils. The pull-in winding coil energizes in order to pull the starter motor solenoid contacts closed. When the contacts close, a plunger on the contacts causes the pull-in winding coil circuit to open. The hold-in winding coil then holds the starter motor solenoid contacts closed. Voltage is then applied to the starter motor from the battery through CKT 1 (BLK) and the closed contacts of the starter motor solenoid. Since the starter motor is also permanently case grounded, the starter motor will run until the ignition switch is moved out of the START position. When this happens, a spring in the starter motor solenoid moves the starter motor solenoid contacts and the plunger back to the rest position.

Jan 07, 2017 | 1999 Chevrolet Tahoe

Tip

Relay Wiring tips and tricks Simple circut. What to look/lookout for


Typically if you want a circuit completed when energized you use C (Common) and NO (normally open). This means that the contact will close when energized and thus complete your circuit. However in some cases a relay is used to stop current from flowing and when energized the contacts used are C and NC (Normally Closed) meaning that the circuit is closed when the relay is off and open when energized.

Other things to consider if "rigging a new circuit".

More precisely, what exactly are you going to accomplish:
Turn On a motor, or light
Turn Off a motor, or light
or complete a timing sequence,
Turn On A heater
Lock out a motor
Isolate a motor

A simple relay works but you had better make sure 2 things 1. your relay is not TOO HEAVY on the VA of the coil (this would cause a control transformer to burn out) is the correct voltage coil, AND 2. BE SURE YOU KNOW WHAT HP OR AMP DRAW your relay will be expected to hold while energized (or de-energized which ever the case may be). This latter is the contact rating. Too small and it will burn out. Too heavy, well I see not much trouble with too heavy a contact rating except it usually has heaver VA draw form the coil the bigger the contacts are.

DOes this help you?

on May 16, 2009 | Carrier 38BRC036 Air Conditioner

1 Answer

How do I find out if the wipers on my 2006 H3 Hummeris on a relay?


The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper micro relay
• Wiper 2 relay
• Wiper diode
• Windshield wiper motor
• Windshield washer pump
• Windshield washer nozzles
• Windshield washer solvent container
• Windshield wiper arm and blade assemblies
• Windshield wiper transmission
• WIP/WASH 10A fuse
• WIPER 25A fuse

Wiper/Washer System Description
The body control module (BCM) controls wiper motor low speed operation. The washer pump and high speed operation are controlled directly by the wiper/washer switch. The windshield wiper/washer switch supplies voltage on the signal circuits to the BCM for windshield wiper/washer operation. When WASH, MIST, DELAY, LOW, or HIGH is detected, the BCM energizes the wiper micro relay by suppling voltage to the relay coil. This allows battery voltage from the WIPER fuse to flow through the relay switched input then through the contacts and out the relay switched output to the wiper 2 relay switch contacts. Since the wiper 2 relay switch contacts are normally closed to the low speed circuit of the windshield wiper motor, the motor will operate at low speed.

Low Speed Operation
When the wiper switch is in the Low position, voltage is supplied through an internal resistor to the signal circuit. The body control module (BCM) monitors the windshield wiper switch signal 1 circuit, and energizes the wiper micro relay which will operate the windshield wiper motor. The wiper motor will operate at low speed, since the wiper 2 relay is de-energized. Low speed can also be commanded with a scan tool, by commanding Wiper Relay Cmd. ON and OFF. Refer to Scan Tool Output Controls .
High Speed Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the wiper micro relay and wiper 2 relay coils. This energizes both relays and allows battery voltage from the wiper micro relay switched output to the switched input of the wiper 2 relay through its contacts and out the switched output of the wiper 2 relay to the high speed circuit of the windshield wiper motor. The windshield wiper motor will operate at high speed. During high speed wiper motor operation the wiper switch signal circuit is at the low speed signal voltage, and the body control module (BCM) supplies redundant voltage to the wiper relay via the wiper diode.

This info is out of hummer factory service manual !

Dec 10, 2016 | 2006 Hummer H3

1 Answer

Why don't windshield wipers with rainsense work?


No wipers at all , hi , low , delayed ? You really need a factory scan tool to diagnose this problem , there is a lot involved ! The switch , BCM , wiper relay , an wiper hi relay ! With a scan tool you would be able to access data parameters in the BCM - body control module . When you turn the switch to turn on the wipers , that's an input to the BCM , the BCM then energizes the proper relay in the under hood relay box . Turning on the wipers ! Plus there could be trouble codes stored in the BCM pointing to a problem .
Low Speed Operation
When the wiper switch is in the low speed position, ground is applied through a resistor internal to the switch and the wiper switch low signal circuit to the body control module (BCM). In response to this signal, the BCM energizes the WPR relay by applying battery voltage through the wiper relay control circuit to the coil side of the relay. This allows battery positive voltage from the WPR fuse to flow through the switch input side of the WPR relay and out to the switch input side of the WPR HI relay. Since the wiper high relay is de-energized and its switch contacts are normally closed to the low speed control circuit of the windshield wiper motor, the motor will operate at low speed.
Wiper motor low speed operation and the WPR relay can also be commanded ON/OFF by using a scan tool. Refer to Scan Tool Output

Sep 08, 2015 | 2006 Cadillac DTS

1 Answer

Where is the radiator fan switch located on a 2002 oldsmobile intrigue


The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood accessory wiring junction block. The ground path is provided at G113. The relays are located in the underhood fuse / relay box .
So ,what's the problem Paul , car overheating ? Fans not working ?
During low speed operation, the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. This energizes the cooling fan 1 relay coil, closes the relay contacts, and supplies battery positive voltage from the cool fan 1 fuse through the cooling fan motor supply voltage circuit to the right cooling fan. The ground path for the right cooling fan is through the cooling fan 2 relay and the left cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the PCM supplies the ground path for the cooling fan 1 relay through the low speed cooling fan relay control circuit. After a 3-second delay, the PCM supplies a ground path for the cooling fan 2 relay and the cooling fan 3 relay through the high speed cooling fan relay control circuit. This energizes the cooling fan 2 relay coil, closes the relay contacts, and provides a ground path for the right cooling fan. At the same time the cooling fan 3 relay coil is energized closing the relay contacts and provides battery positive voltage from the cool fan 2 fuse on the cooling fan motor supply voltage circuit to the left cooling fan. During high speed fan operation, both engine cooling fans have there own ground path. The result is a parallel circuit with both fans running at high speed.
The PCM commands Low Speed Fans on under the following conditions:
?€¢
Engine coolant temperature exceeds approximately 106?°C (223?°F).


?€¢
When the A/C is requested and the ambient temperature is more than 50?°C (122?°F).


?€¢
A/C refrigerant pressure exceeds 1310 kPa (190 psi).


?€¢
After the vehicle is shut off if the engine coolant temperature at key-off is greater than 140?°C (284?°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes.

The PCM commands High Speed Fans on under the following conditions:
?€¢
Engine coolant temperature reaches 110?°C (230?°F).


?€¢
A/C refrigerant pressure exceeds 1655 kPa (240 psi).


?€¢
When certain DTCs set.



So

May 11, 2015 | Oldsmobile Cars & Trucks

1 Answer

All i have KEB F5 inverter with profibus disply card.can any body tell me how can i run this inver without profibus signal.i want run this inverter with keypad on my working table


There are many different ways to run the inverters without ProfiBus.
You must first determine what signals are being provided by ProfiBuss and determine the best way to replace these signals.

Jan 10, 2014 | Inverter KEB COMBIVERT F5

1 Answer

Motor wont start


Assuming the motor shaft is not frozen and the rotor turns freely by hand
All single phase induction (No brushes) motors require energizing a "starting" winding for a second or so to get the thing turning.
Once the armature in turning the "run" windings take over and the start winding is turned off. If power is left on more than a few seconds without the motor starting, the starting winding will be permanently damaged. It can tolerate power for only a few seconds.
The momentary connection to the start circuit is controlled by any of several different methods. The most common system is a switch located at the opposite end of the motor from the output shaft. The switch is in the end cap and there is a flyweight on the armature that opens the switch when the motor gets up to speed. If the switch fails to make contact when stopped the motor won't turn. The contacts can be worn to the point of not contacting or it may have sawdust or other matter between the contacts. Whatever the reason the contact is not making connection to the start winding.
Another method use is an "Inrush" relay. This may be located in the motor or anywhere else like the manual switch box or another box exclusively for the relay. Radial are saws frequently use this system. When the motor is powered up the current is several times the current that it takes to keep it running. This high current (inrush) is detected by the relay and snaps closed until the current falls to the lower running condition. In this design the relay is open at rest and closes for a small amount of time at power up.. In the first design the contact is closed anytime the motor is at rest and opens when up to speed.
Look for a fault in these areas.
There are many other ways to start single phase induction motors, but these are by far the most common.

May 09, 2013 | Saws

1 Answer

I have just moved house and now my proform treadmil runs for a few seconds then stops and displays E1


Dear Sir:

I will help you, inmediately:
    • 1
Someconsoles require batteries. Check to see if this is the problem. If the consoledoes not use batteries, move on to Step 2.
    • 2
Removethe key from the console.
    • 3
Unplug the power cord.
    • 4
Removethe screws from the console hood and remove the hood.
    • 5
Turnthe pulley until the reed switch and magnet are aligned with a 1/8-inch gapbetween reed switch and pulley.
    • 6
Replace the hood.
    • 7
Plugin the power cord.
    • 8
Reinsertthe key into the console.
    • 9
Runthe treadmill to check for a correct speed reading. This may take a fewminutes.
If the problem persiste again you can proceed , to the next step:


A) Clean the VSD(Variable Speed Drive) Pot, use special spray for clean contact, Pot, Swith, and spray it. Wait by 10 minutes, and try again.

B) If that no resolve the problem, you must return the VSD(Board) to the factory indicating the Error 01, the VSD, and EPROm/RAM Failure.

Please feel free to contact me , if you need another help. blessing, Sincerely.

E.CUADRA
MANAGUA, NICARAGUA. C.A.

Sep 13, 2011 | Exercise & Fitness

1 Answer

The detergent flap does not open


Check the dispenser for easy close & open. Trouble could be- latch relay not getting energized- wires might have snapped - relay driver - command not reaching from the controller etc.

If you check all the points you will get an idea. I feel micro-controller may not have any problem as other cycle is OK.

Further assistance contact the authorized service center.

May 22, 2010 | Miele 24 in. G665 Built-in Dishwasher

1 Answer

Wiring a relay contact


Typically if you want a circuit completed when energized you use C (Common) and NO (normally open). This means that the contact will close when energized and thus complete your circuit. However in some cases a relay is used to stop current from flowing and when energized the contacts used are C and NC (Normally Closed) meaning that the circuit is closed when the relay is off and open when energized.

Other things to consider if "rigging a new circuit".

More precisely, what exactly are you going to accomplish:
Turn On a motor, or light
Turn Off a motor, or light
or complete a timing sequence,
Turn On A heater
Lock out a motor
Isolate a motor

A simple relay works just as ac fixer said but you had better make sure 2 things 1 your relay is not TOO HEAVY on the VA of the coil (and like he said is the correct voltage) AND 2 BE SURE YOU KNOW WHAT HP OR AMP DRAW your relay will be expected to hold while energized (or de-energized which ever the case may be).

DOes this help you?
If so please rate me as high as you can. If not I will need to know more than what you have asked. Please be as speciffic as you can with clarity that you understand and post back. Thanks for using fixya.

May 15, 2009 | Coleman Heating & Cooling

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