MPS IPC-307 User manual

IPC-307
Inverter Phase Checker
Warning: Important Information; read instructions
Conforms to European Union directives
Direct Current
Alternating Current
Warning: Hazardous Voltages
Double Insulated
General specifications
Model:
Input Voltage: 3 phase to phase inputs L1, L2 & L3 : 440 V
AC max. 600V DC max
DC BUS Voltage: 280 - 600V DC
Phase load: 8.5 mA maximum per phase.
Carrier Frequency: 5 to 20Khz.
Operating Environment: 0 °C to 40 °C at < 80 % R.H.
Indoor and dry outdoor. IP40. Altitude: 2000 m (6561 ft.)
max.
Power: 2 x 1.5V LR6, AA Alkaline Battery Only.
Dimensions: Enclosure 119(L) x 79(W) x 24(D) mm.
Connection Leads: 500mm, 4mm shrouded banana
connectors.
Weight: 250g (with standard probes).
Overload protection 500V ac 10 seconds.
CAT II, 600V, Pollution degree 2, Class 2.
This meter meets CAT II IEC 61010 standards. The IEC 61010 safety
standard defines four measurement categories (CAT I to IV) based
on the magnitude of danger from transient impulses. CAT II meters
are designed to protect against transients in energy consuming
equipment supplied from fixed installation.
This Guide contains instructions for using the Inverter Phase Checker. Refer to the manufacturer’s service manual
of the air conditioning equipment for further safety and servicing information.
Safety
Warning. Read before using the IPC-307
Warning identifies hazardous conditions and actions that could cause bodily harm or death.
The IPC-307 is intended to be used only on airconditioning, heat-pump and refrigeration based inverter systems only.
Do not connect to power distribution or supply lines (U, V, W).
Use only as specified in this manual or the protection provided by the IPC might be impaired.
In order to obtain a correct diagnosis, tests must be made on electrically live parts. Such measurements must be made
by properly trained professional persons, familiar with the hazards involved.
When using the test leads, keep your fingers behind the finger guards.
Do not allow conductors of probes to come into contact with other components or any part of the case or metal parts.
Do not make or disconnect circuits while live. This is dangerous and may cause permanent damage to components.
The IPC has a strong magnetic base for mounting conveniently on to steel condenser housings. The engineer must be
sure the mounting is secure before powering up.
Protect the Inverter Checker against water, moisture, condensation and precipitation.
If the IPC or connecting leads are damaged, they must be replaced.
Do not apply more than the rated voltage, as marked on the IPC.
No serviceable parts inside. Do not open the IPC Casing. Operate only with battery cover fitted.
Limit the time the IPC is connected to outputs of continuous activity to 10 minutes. Rest for 10 minutes before repeat
test.
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Servicing and Cleaning
Accessaries
Part Number Description
Wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or moisture in the
terminals can affect safe use and correct functioning.
If the IPC or connecting leads are damaged, then the IPC will need to be replaced.
Verify the IPC operation by momentarily connecting a known 230VAC voltage to each combination of phase pairs
until, all 6 Indicators have been illuminated.
The battery can be tested by holding the MEM button for 4 seconds: If 6 LEDs light, then the batteries are good.
Use only alkaline batteries.
If storing for long periods remove batteries - in case of leakage.
IP 01-1020 Set of 3 Crocodile Clips.
IP 01-1030 Set of 3 Retractable Hook Probes.
IP 01-1040 Set of 3 Insulation Piercing Probes.
Technical Assistance
[e-mail], www.mpsaet.com
MPS ADVANCE ELECTRONIC TECHNOLOGY, S.L. Urb. La Vista C/ Trébol, 4-6, E-29639 Benalmádena (Málaga)
España. Tel: + 34 952 56 56 88,

Testing.
Warning.
To avoid electric shock or injury, or damage to the IPC, a
All 6 LEDs must light.
Conclusion
Correct Function Inverter Outputs : all 6 LEDs must light.
lways disconnect power supplies before making or
disconnecting connections. Wait three minutes for stored charge in capacitors (DC Voltage) to safely
discharge.
This Inverter Phase test must be carried out with the compressor disconnected from the Inverter Board.
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Disconnect the 3 phases supplying the compressor.
Connect L1, L2 and L3 of the IPC to the 3 phases output from the inverter board ( sometimes designated U, V, W).
After all connections are safely made, switch on the power.
Clear the IPC-307 memory and check battery condition by pressing and holding the MEM switch for 4 seconds until
a beep is heard. The 6 LEDS will light in sequence. Release the switch.
Configure the system to call for cooling
As soon as the inverter initiates a start up sequence, corresponding LEDs will blink in a sequence (not indicative of
rotation direction) and an audible beep will sound .Normally this only occurs for a second or so. The IPC will notify of
a start up sequence having been detected by sounding a single short audible beep every 4 seconds, corresponding
LEDs will flash indicative of valid signals sensed..
Press the MEM button to recall test result. Hold MEM to clear memory for re-testing. If one
or more LEDs are not lit, check probe connections and repeat test.
Faulty Output: one, more or all of the LEDs do not light.
Faulty Output: one or more LEDs are constantly on.
If any or all of the outputs are not functioning properly, then the Invertor board (or IPM) will need to be replaced.
There are various ways of connecting the Inverter Phase Checker, depending on the type and accessibility of the
terminals. The Engineer must ensure that suitable and secure connections are correctly made before switch on.
Example of connecting the IPC-307
to the Inverter Compressor feed Terminals
L1 (U)
L2 (V)
L3 (W)
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AC IN RECTIFI-
CATION
DC
VOLTAGE
OUTPUT
TRANSISTORS
AC MOTOR
3 PHASE INVERTER
Inverter Information.
The inverter uses a rectifier to convert the incoming alternating current (AC) to direct current (DC) and then switches the 6
transistors in a sequence to produce AC of a desired frequency. The variable frequency AC drives the compressor.
When an inverter system starts up - It is common for there to be a delay of typically two to three minutes before the output
is enabled and the duration of the output switching sequence that follows, may only last for a second or more.
The sequence is terminated once the inverter senses there is no compressor loading.
In some cases the phase sequence might be repeated following a further delay. Also, following a fault, some systems will
require a resetting action of some kind.
Introduction to the IPC-307
Battery Powered
Operation
Memory
Magnetic Base
Compressors.
The IPC functions to identify inverter faults when a problem arises such as compressor over-current protection and shut
down. It senses and measures valid switching operation of the 6 output transistors in inverter systems. A sequence in
which all 6 transistors switch both on and off, is indicative of correct operation. The IPC is connected to the inverter
instead of the compressor and automatically monitors the inverter output.
The IPC remains in standby mode and will start automatically when inverter activity is sensed on the L1,2 & 3 inputs, or
when the MEM button is pressed.
Virtually no power is consumed while in standby. The battery can be tested by holding the MEM button for 4 seconds: If
6 LEDs light, then the batteries are good.
When testing is complete, clear memory to put the IPC into standby mode and save battery power.
The IPC will record and display any valid signals it detects with LED and an audible beep. Valid signals are recorded in
memory and will remain until cleared.
Following 4 seconds of no activity, the IPC will notify of a start up sequence having been detected by sounding a single
short audible beep every 4 seconds. Corresponding LEDs will flash indicative of valid signals sensed.
This will continue for 18 minutes, after which the memory will be cleared and the IPC enters standby mode.
Inverter start up sequences are often very short in duration - only a second or more. So the IPC stores valid signals in
memory for later observation.
Memory is recalled at any time by momentarily pressing the MEM button to display which signals have been detected.
All 6 LEDs constantly lit indicated a test pass.
Holding the MEM switch for 4 seconds or longer will clear memory and place the IPC in standby mode.
The memory must be cleared before initiating any test or repeat test.
The IPC-307 has a strong magnetic base for mounting conveniently on to steel condenser housings.
Compressors can fail with insulation breakdown between motor windings or down to earth. It is advised to carry out an
electrical insulation test to earth and a resistance test between each winding of the compressor, in accordance with
manufacturer’s data, prior to reconnecting.
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2 Year Warranty:
This product has been fully tested and is certified to be free of any faults. Provided it is operated, transported
and stored in a professional manner and in accordance with the instructions it will give long and reliable
service. If any fault develops check first the servicing section of this leaflet.
If the product fails within 2 years of purchase, due to a defect in either materials or manufacture, it will be
replaced or repaired by the manufacturer, provided it can be clearly shown that it has been operated,
maintained and used as shown in the instructions.
No liability can be accepted under any circumstances for any indirect, incidental or consequential damages or
losses, including data, arising from the use of this product.
This warranty does not cover batteries, damage from neglect, misuse, contamination, alteration,
accident or abnormal conditions of operation or handling, including failures caused by use outside of the
product’s specifications, or normal wear and tear of mechanical components. Warranty will be void with
evidence into opening or tampering with the casings.
This warranty covers the original purchaser only and is not transferable.