Yaskawa A1000, V1000 and GA Drives, New Zealand

Yaskawa / A1000, V1000, J1000, P1000 and GA drives

These ranges are rated in output amps, not kilowatts. CIMR-AU4A0011 is a 400 V drive rated 11 A. It is not an 11 kW drive, and an 11 kW motor needs roughly double that.

A1000 and V1000 are the drives that replaced the Varispeed generation, and they are now mature themselves. Between them they cover most Yaskawa installed on New Zealand machinery in the last fifteen years.

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Which one you have

Range	Built for	Status
A1000	High performance. Vector control, closed loop capable, permanent magnet motors	Mature
V1000	Compact general purpose. The volume machine drive	Mature
J1000	Simple and small	Mature
P1000	Fan and pump	Mature
Z1000	Building services	Mature
GA500	The V1000 successor	Current
GA700, GA800	The A1000 successor	Current
U1000	Matrix converter. Low harmonics, full regeneration	Current

A1000 and V1000 are not the same class of drive. The V1000 is a capable compact drive and the A1000 is the one specified where the machine needs closed loop control, high starting torque or a permanent magnet motor.

So substituting one for the other is a real decision rather than a size question.

Sizing, and the mistake this range generates

The four digits after the voltage code are the rated output current in amps.

Code	Means
2A	200 V class, three phase
4A	400 V class, three phase. Most New Zealand installations
B	200 V class, single phase input
Four digits	Output amps

The Varispeed generation used kilowatts in the same position. So anyone replacing an F7 with an A1000 and matching the digits orders a drive around half the size they need. That is covered in detail on our Varispeed page.

Size from the motor nameplate full load current. Send us that, the supply voltage and what the load is.

Normal Duty and Heavy Duty

The same model carries two current ratings, and the duty is a parameter setting.

	Normal Duty	Heavy Duty
For	Fans, pumps, centrifugal loads	Conveyors, extruders, mixers, hoists
Continuous current	Higher	Lower
Overload capability	Lower	Higher, for breakaway torque

A drive sized on the Normal Duty figure and used on a constant torque load will trip on overload, and that is the drive protecting itself rather than failing.

Tell us the load type. It changes which drive we quote for the same motor.

The motor may not be an induction motor

Worth checking, because it changes the control mode and it is easy to miss.

These drives can run permanent magnet motors as well as induction motors. PM motors are used where efficiency or power density matters, and they are physically unremarkable to look at.

Consequence
The control mode has to be set for the motor type. A default drive is set for induction
The motor data entered is different, and a standard autotune is not the same procedure
A PM motor generates voltage when the shaft is turned, so it is not safe to assume an isolated motor is dead

So a replacement drive that runs an induction motor perfectly may do nothing sensible with a PM motor until the control mode is changed. Check the motor nameplate rather than assuming.

Safe disable, and whether the machine uses it

These drives have a safe disable input on the control terminals, which removes torque from the motor without dropping a contactor.

Point	Detail
It arrives linked out	A new drive typically ships with the input bridged so it will run
If the machine uses it, the links must come out	And the safety wiring goes back on
Leaving the links in defeats the function	Silently. The machine still runs

That is the dangerous version of this failure, because nothing appears wrong. The machine works, and a safety function that was part of the assessed system is no longer present.

So on any drive whose safe disable terminals are wired into a safety circuit, photograph the terminal strip before disturbing it. Whether the arrangement is valid belongs with whoever holds the machine's safety assessment.

Option cards

Type	Adds
Communication cards	PROFIBUS, DeviceNet, EtherNet/IP, MECHATROLINK, PROFINET and others
PG feedback cards	Encoder feedback for closed loop. Matched to the encoder type
Analogue and digital I/O cards	Extra terminals

Closed loop control needs a PG card, and the card has to suit the encoder's output type. A drive of the right rating with no card will not do closed loop at all.

Cards do not come with a replacement drive and do not cross to the Varispeed generation. Move them across or put them on the order.

Where the parameters live

Two routes, and both are better than re-entering by hand.

Route	Notes
The digital operator	Copies a full parameter set between drives, and verifies one against the other
The Yaskawa engineering software	Backup to a PC, and a printed record

The verify function is the underrated one. It compares the running drive against a stored set and tells you what has been changed, which is genuinely useful on a machine somebody has adjusted without recording it.

On some of these ranges the terminal board itself is removable, and where that is the case it can carry the wiring and settings across to the replacement rather than rewiring the new drive. Worth checking on the compact models before you start pulling wires off.

Either way: take a copy off every running drive now. It is free and it turns a failure into a swap.

The drive tracks its own component life

Underused, and it answers the question before you order.

The maintenance monitors report estimated remaining life for the cooling fan, the DC bus capacitors, the soft charge relay and the IGBT.

So before condemning a drive that has been misbehaving, read them. If the fan is at end of life the answer is a fan. If the capacitors are, at least the failure is scheduled rather than a surprise.

It also gives the real age and duty of a used drive, which an invoice date does not. We read these before we sell a used unit.

Common faults

Code	Meaning	Usually
oC	Over current	Output short or motor cable
oV	DC bus over voltage	Braking arrangement or ramp time
Uv1	DC bus under voltage	Supply dip or input phase
Uv3	Soft charge circuit	The soft charge relay
oL1	Motor overload	Load, or motor rated current
oL2	Drive overload	Normal against Heavy Duty sizing
oH, oH1	Heatsink over temperature	Fan and airflow
GF	Ground fault	Motor or motor cable
PF, LF	Input or output phase loss	Supply, or motor cable and windings
PGo	Encoder feedback lost	Encoder, cable or PG card
bUS, CE	Communication fault	Network cabling or the option card
oPr	Operator disconnected	Somebody removed the keypad
CPF	Control circuit fault	The drive

Most of these point outward. Ground fault, phase loss, encoder loss and communication faults are all outside the drive, and oH is usually a fan.

Braking

Frame	Arrangement
Smaller frames	Braking transistor built in. Add a resistor
Larger frames	A separate braking unit plus a resistor

On a larger drive the braking unit is a distinct part in the panel with its own rating, and it is regularly left off a parts list. An oV trip on deceleration points there rather than at the drive.

Before ordering a replacement

Symptom	Check first
oH	Fan and airflow. Read the maintenance monitor
oL2 under load	Normal against Heavy Duty
Will not start, otherwise healthy	Uv3 and the soft charge relay
New drive will not do closed loop	PG card fitted, and matched to the encoder
New drive does nothing sensible with the motor	Control mode. The motor may be permanent magnet
Safety circuit no longer works after a swap	Safe disable links left in
Fieldbus dead after a swap	The option card. It does not come with the drive
Wrong size ordered last time	Amps against kW between generations

What to send us

The full CIMR model number.

The motor nameplate full load current and voltage, and whether it is induction or permanent magnet.

What the load is. That decides Normal or Heavy Duty.

Whether the supply is single phase or three phase.

Whether the application is closed loop, and what the encoder is.

Whether the safe disable terminals are wired into a safety circuit.

What cards are fitted.

The fault code, and the maintenance monitor readings if you can get them.

What we can supply

Drives. A1000, V1000, J1000, P1000 and Z1000 across voltage classes and ratings, plus the current GA500, GA700, GA800 and U1000.

Cards. Communication, PG feedback and I/O options.

Operators. Matched to the drive generation.

Parts. Cooling fans, braking units, braking resistors and terminal boards.

Where a build is no longer available new we supply surplus and tested used, which keeps a machine on its existing parameter set and card arrangement.

We buy A1000 and V1000

Both resell readily. Keep the operator with the drive and the cards in their slots, since a PG or communication card is worth real money separately and a complete drive is worth more than either. See Sell To Us.

Common questions

Can you get a part that is not listed on your site?
Usually. The site shows what we hold, not what we can source.

Is CIMR-AU4A0011 an 11 kW drive?
No. It is rated 11 A output. Size from the motor nameplate current.

Can I use a V1000 instead of an A1000?
Sometimes. Not if the machine needs closed loop control, high starting torque or a permanent magnet motor.

Why does it trip on overload when the kW matches?
Check Normal against Heavy Duty. The same model has two ratings and the duty is a setting.

My safety circuit stopped working after the drive was changed.
Check whether the safe disable links were left in. A new drive usually ships with them fitted.

Do you supply used equipment?
Yes, tested and clearly described, with the maintenance monitor readings where we can get them.

What is the lead time?
Ex stock items ship the next working day within New Zealand. We give you a firm lead time with the quote.

Do you quote in NZD?
Yes, in NZD including GST for New Zealand customers.

Send us your model numbers

Send the CIMR number and the motor nameplate current together. On these ranges the drive number is amps, and the motor decides the size. Quotes in NZD including GST.

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Industech is an independent supplier of new, surplus and used industrial automation equipment. We are not an authorised distributor of, approved by, sanctioned by, or affiliated with Yaskawa. Yaskawa and MECHATROLINK are trademarks of Yaskawa Electric Corporation. PROFIBUS and PROFINET are trademarks of PROFIBUS Nutzerorganisation. EtherNet/IP is a trademark of ODVA. All trademarks, brand names and model numbers are the property of their respective owners and are used here for identification purposes only.