Motor & Energy

Voltage Guard

Configure Voltage Guard in HPzenAi Smart. Protects devices from unsafe voltage.

What it does

Protect motors from unsafe voltage.

Protects devices from unsafe voltage. Use this automation when the selected field devices should work together without repeated manual setup.

CategoryMotor & Energy

Works with

Motor ControllersEnergy MetersLevel Sensors

Automation Logic

When

Trigger

Voltage rises above or falls below the selected safe range.

Default

Voltage drops below 200 V

Choices

Voltage drops below180 V200 V360 VEnter valueVoltage rises above250 V440 V460 VEnter value

Example: choose "Voltage drops below" and keep the default 200 V, select another preset, or enter another value.

If

Condition

The unsafe voltage remains longer than the configured filter delay.

Default

No condition

Choices

No condition

Example: leave No condition selected when the trigger alone should run the workflow.

Then

Action

Stop the motor or send the selected voltage alert.

Default

Stop, restart when stable for 10 min

Choices

Stop, restart when stable for5 min10 min15 minEnter valueStop the motor and notify meOnly notify me

Example: choose "Stop, restart when stable for" and keep the default 10 min, select another preset, or enter another value.

Active

Allowed Time

Use All day for electrical protection.

Default

All day

Choices

All dayDay (6 AM - 6 PM)Night (6 PM - 6 AM)

Example: keep All day for protection workflows, or choose Day or Night when operation should stay inside site hours.

Automation Details

Recommended use

Sites with brownouts, overvoltage, or unstable power.

Device Inputs

Motor Controllers, Energy Meters, Level Sensors

Output Behavior

Stop the motor or send the selected voltage alert.

Safety Note

Set thresholds to match equipment ratings and local electrical standards.

Test Method

Confirm measured voltage matches a trusted meter before relying on trips.

Visual reference coming soon

Future screenshot area for the Voltage Guard setup screen and saved Smart card.

Voltage Guard Walkthrough

Walkthrough video coming soon

Before You Start

Device Readiness

Link every device used by this workflow and confirm each one is online.

Device Selection

Choose the exact tank, pump, valve, relay, or meter that should be controlled.

Safe Test

Test with safe thresholds or manual observation before leaving the workflow enabled.

Guided Setup

Set Up Voltage Guard

Step 1 / 12

9:41

1

Open the HPzenAi app.

Step 1 / 12

Commissioning Checks

• Confirm the motor action or alert follows the selected protection condition.
• Confirm measured voltage matches a trusted meter before relying on trips.
• Confirm the saved card shows the correct workflow, devices, schedule, and enabled state.
• Review the event history after testing so the action is recorded as expected.
• Keep safety-critical workflows active all day unless the site needs a specific time window.

Troubleshooting

• If the Save button is disabled, complete every required trigger, condition, action, and timing field.
• If the workflow does not run, confirm the devices are online and the active time allows it to run now.
• If the action does not complete, check whether the target device is already in that state or cannot accept commands.
• If notification behavior is missing, confirm phone notification permission and recent device data.

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