What the D1562 alarm means

The incoming AC supply measured at the power sequence board is above the permitted range; the controller protects itself from overvoltage. This is one of the most common faults in our repair logs for the Kawasaki E / F / C series (AS language) platform, and the first inspection typically locates the cause.

Most common causes

  • Plant supply voltage genuinely high (tap changer issue, light-load period)
  • Transformer tap set wrong
  • Voltage-sensing circuit fault on the power sequence board
Field note: Field experience says the first cause is the most likely — verify it before moving on to the rest.

Step-by-step field fix

  1. Measure the actual incoming AC voltage at the cabinet
  2. If plant voltage is high, correct it at the transformer/feeder
  3. Verify the controller transformer tap matches the local voltage
  4. If the supply measures normal but the alarm stays, replace/check the power sequence board
  5. Clear the root D-code first when multiple power alarms appear together
Safety first: For Kawasaki d1562, this alarm family involves the DC bus, which sits at several hundred volts and stays charged for minutes after power-off - touching terminals is a shock hazard. On site you may not carry out the first step yourself: Measure the actual incoming AC voltage at the cabinet. Beyond that it is the DC bus and power stage work - leave it to a professional. On Kawasaki d1562: checking incoming voltage at the disconnect and looking at breakers and fuses is fine to do yourself; opening the cabinet to touch bus terminals or pulling power modules needs a qualified electrician.

How we diagnose drive alarms on site

Kawasaki d1562 belongs to the drive & power stage family. On Kawasaki d1562 the failing stage is cabinet drive boards (1GA / 1FA class) and power-stage modules per axis on the E-Controller / D-Controller / F-Controller - the fault sits on the energy chain: mains input, rectification, DC bus, braking resistor, inverter power devices and the drive board. We start reading Kawasaki d1562 at the pendant ERROR HISTORY with AS error numbers (D / E / P prefixes).

The chain involved in Kawasaki d1562 runs: three-phase mains -> rectifier -> DC bus (bus capacitors) -> brake chopper / braking resistor -> inverter (IGBT) -> motor.

Plant supply voltage genuinely high (tap changer issue, light-load period) is common on Kawasaki d1562, but look at the duty cycle: Cells with high-inertia loads or frequent start-stop cycles return far more regenerative energy than a plain transfer cell, and the braking resistor lives in a hot cycle that shortens its life. When we suspect this family we ask what changed: if the takt was raised recently or a heavier fixture went on, the alarm cluster usually lines up with that process change. Replacing the resistor alone will not fix it - the chopper rating and resistor wattage have to be re-checked against the new duty.

Field notes on this page cover Kawasaki d1562 (Power Sequence Board — AC External Voltage Too High); written by the Henghuan repair team, updated 2026-10-01.

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Related Drive & Power Stage alarms

E1028 — Motor Overload (Axis XX) D1028 — Servo Board DC Power Abnormal (Servo FPGA) E1294 — Servo Board IO 24V Dropped
Same family: this code belongs to the Drive & power stage alarms family - the page collects all Drive & power stage-family codes we have handled, with the common inspection order and spares.
Other brands: we also keep field-fix libraries for Staubli · Epson · Nachi and more — see the complete alarm code hub.

Frequently asked questions

QWhat does the Kawasaki d1562 alarm mean?

The incoming AC supply measured at the power sequence board is above the permitted range; the controller protects itself from overvoltage. This is one of the most common faults in our repair logs for the Kawasaki E / F / C series (AS language) platform, and the first inspection typically locates the cause. Kawasaki d1562 sits in the drive & power stage family; on our work orders the highest-frequency trigger for this code is "Plant supply voltage genuinely high (tap changer issue, light-load period)".

QCan I clear a Kawasaki d1562 alarm myself?

Whether Kawasaki d1562 clears on its own depends on the outcome of "Measure the actual incoming AC voltage at the cabinet". Finish the flow with "Clear the root D-code first when multiple power alarms appear together" to confirm Kawasaki d1562 - do not skip it. If that step is clean, the second most frequent cause on Kawasaki d1562 is "Transformer tap set wrong". If Kawasaki d1562 returns after two clears, or the checks point at Plant supply voltage genuinely high (tap changer issue, light-load period), stop the cell and call a professional robot repair engineer.

QFor drive/power alarms like Kawasaki d1562, what spares do you bring on site?

The commonest causes we see on Kawasaki d1562 are "Plant supply voltage genuinely high (tap changer issue, light-load period), Transformer tap set wrong, Voltage-sensing circuit fault on the power sequence board", so we stock the van against those. For Kawasaki d1562 specifically, we stock the van along the energy chain: braking resistors, bus capacitors, input fuses, drive-board supply parts and the common power modules for the brand. For Kawasaki d1562, drive alarms usually stop the whole line, so they sit at the front of our dispatch queue. Before we roll, tell us what Kawasaki d1562 shows on the pendant ERROR HISTORY with AS error numbers (D / E / P prefixes) and what the machine was doing - phone or video triage is free.

This page on Kawasaki d1562 was compiled from actual repair records of the Henghuan Robotics repair team. Alarm notes are our own summary for troubleshooting reference only and may vary with controller and software version — please consult Kawasaki documentation or contact us if in doubt. Henghuan is an independent service provider, not affiliated with or endorsed by Kawasaki.