Product Manual
Product Manual
- Universal Pump Controller (English)
- Digital Meter Connection Diagram
- Device Connection Diagram
- Three Phase Auto Switch (DEV-N) Connection Diagram
Before you register your device: read this
New VUKAR digital devices run in limited trial mode until they are registered. Registration uses the wrt parameter and a 4-digit code issued by Technical Support — it is not a code you can work out, look up or guess.
Warning: after 7 incorrect code attempts the device locks permanently. A permanently locked device cannot be reset, recovered or reused, and a replacement must be purchased. There are no exceptions once lockout has occurred.
So do not try codes. To register:
- Read the 3-digit Device Identification Number from the top display.
- Call Technical Support on the number below with that number and your product billing details.
- They will issue your unique 4-digit code.
- Enter it into the wrt parameter and save.
If you are unsure at any point, stop and call before entering anything. One phone call costs nothing; a locked device costs a new device.
Product Guides
Written guides that answer the questions the manuals get asked about most. No download needed.
- Cyclic Timer vs Clock Timer vs Auto Off Timer — what each timer does, when the pump can restart on its own, and which one suits your situation.
- Fault Codes: FOL, FDR, HIU, LOU & SPP — what each code means, the correct reset method, and when to stop resetting and call a technician.
- Which Starter Panel for Your Motor HP — panel rating by motor size and pump type, and how to read a VUKAR model code.
Compare models before you buy
- Single phase water level controllers (DEV-H)
- Three phase water level controllers (DEV-G)
- Single phase digital auto switches (DEV-K)
- Three phase digital auto switches (DEV-P, DEV-N)
- All single phase motor protection devices
- All three phase motor protection devices
Technical Support: +91 6358896254
DM-Universal-V1 Controller Parameters
Full parameter reference for the VUKAR DM-Universal-V1 Custom Motor Protection Device (96 x 96), transcribed from the official user manual (Manual V00). Parameters are grouped in seven menus: SET (Motor Protection), CYC (Cyclic Timer), PRC (System Configurations), CLK (Clock Timer), DS (Day Selection), TIM (ON/OFF Time Schedule) and CCT (Run/Rest Time Schedule). To set a parameter: press UP to increase the value, DOWN to decrease, SET to save and move to the next parameter, MENU to save and exit the menu.
Safety note: parameter settings and wiring changes should be adjusted by a qualified electrician or trained installer only.
| Code | Parameter | What it sets | Range | Factory default | Unit |
|---|---|---|---|---|---|
| ol | Overload Ampere | Maximum current threshold for motor operation. If the motor draws current above this value for the duration set in olt, the system trips to prevent damage. | 001.5 - 999.9 | 100.0 | A |
| olt | Overload Trip Delay | Time duration the motor is allowed to run above the overload current (ol) before the system trips. | 001 - 250 | 0010 | s |
| dr | Dry Run Ampere | Minimum current threshold below which the system considers the motor to be running dry (without water). | 000.5 - 998.9 | 000.5 | A |
| drt | Dry Run Trip Delay | Delay time the motor is allowed to run below the dry run current threshold (dr) before tripping. | 0001 - 250 | 0005 | s |
| hiu | High Voltage Cut-off Limit | Upper voltage limit. If input voltage exceeds this value continuously, the motor is stopped to protect against overvoltage damage. | 140 - 500 | 500 | V |
| lou | Low Voltage Cut-off Limit | Lower voltage limit. If input voltage drops below this value continuously, the motor is stopped to prevent malfunction or overheating. | 130 - 490 | 130 | V |
| ast | Auto Start Time | Delay time after power is restored before the motor starts automatically. | 0000 - 0999 | 0030 | s |
| run | Run Timer | Maximum continuous runtime duration for the motor. | 0000 - 9999 | 0030 | min |
| rst | Rest Timer | Mandatory rest period after each motor run before it can start again automatically. | 0000 - 9999 | 0120 | min |
| sdt | Not Used | Not applicable in the current version of the meter; reserved for future use and development. | N/A | N/A | N/A |
| trq | Torque Timer | Time duration for which the green push button is held during motor startup to assist initial torque generation, ensuring a successful and stable motor startup. | 000.2 - 060.0 | 001.0 | s |
| atc | Auto Reset Timer | Wait time before the system attempts to automatically restart the motor after it stopped on a fault. | 0000 - 9990 | 0003 | s |
| mod | Mode of Operation | Selects the control mode defining how the motor starts and stops: fully automatic, semi-automatic, or manual. | FAUT / SS / ST / DRO | ILLEGIBLE (not stated in manual) | option |
| cts | CT Coil Selection | Selects the appropriate CT configuration based on motor type and ampere range, matching internal calibration with the installed CT type. | 1200 / 1201 / 1202 / SQ1 / SQ2 / SQ3 | 1202 | option |
| mem | Memory | Enables or disables memory retention of motor ON/OFF state after power failure - whether the device resumes previous motor state after power loss or starts fresh. | Yes / No | No | option |
| acl | Ampere Calibration | Fine adjustment of the displayed ampere value to match actual current measurement. | 1 - 100 increases display by set percentage; above 100 decreases display by (acl - 100) percent | ILLEGIBLE (not stated in manual) | % |
| vcl | Voltage Calibration | Fine adjustment of the displayed voltage value to match actual voltage measurement. | 1 - 100 increases display by set percentage; above 100 decreases display by (vcl - 100) percent | ILLEGIBLE (not stated in manual) | % |
| olm | Power Failure Overload Lockout | Determines whether the system restarts the motor automatically after power resumes if the last shutdown was due to an overload fault. | Yes / No | No | option |
| wrt | User Registration | Registers the product for authorized use with a 4-digit code from technical support. Top display shows a 3-digit Device Identification Number; bottom display is used to enter the warranty code. | 0000 - 9999 | 0000 | code |
| dat | Calendar Date | Sets the current day of month in the internal real-time clock (RTC), required for day-based automation. | 01 - 31 | 01 | DD |
| mon | Calendar Month | Sets the current month in the internal RTC. | 01 - 12 | 01 | MM |
| yr | Calendar Year | Sets the current year in the internal RTC; only the last two digits are used. | 2025 - 2075 | 2025 | YYYY |
| day | Day of the Week | Sets the current day of the week in the RTC (0 = Sunday, 1 = Monday, ..., 6 = Saturday). Required for DAY-based ON/OFF automation. | 0 - 6 | 0 (Sunday) | day index |
| hr | Clock Hour | Sets the current hour in the RTC using 24-hour format. | 00 - 23 | 00 | HH |
| min | Clock Minute | Sets the current minute in the RTC. | 00 - 59 | 00 | MM |
| sec | Clock Second | Sets the current second in the RTC for real-time clock precision. | 00 - 59 | 00 | SS |
| sun / mon / tue / wed / thu / fri / sat | Day Selection for Schedule Activation | Enables or disables the scheduled ON/OFF or RUN/REST timers for each day of the week. If a day is EN, the device follows the active schedule on that day. | EN / DIS | EN for all days | option |
| n.01 - n.20 | ON Time Schedules 1-20 | Scheduled ON times at which the motor starts automatically; 20 independent daily schedules. | 00:00 - 23:59 | 00:00 (Disabled) | HH:MM (24-hour) |
| f.01 - f.20 | OFF Time Schedules 1-20 | Scheduled OFF times at which the motor stops automatically; paired with the corresponding ON schedules. | 00:00 - 23:59 | 00:00 (Disabled) | HH:MM (24-hour) |
| r.01 - r.20 | RUN Time Schedules 1-20 | Runtime duration for each scheduled motor ON period - how long the motor remains ON after the corresponding ON time (n.xx) is triggered. | 0000 - 9999 | 0030 | min |
| s.01 - s.20 | REST Time Schedules 1-20 | Rest duration after the motor completes its run cycle (per r.xx) - the waiting period before the motor can start again per the next ON schedule. | 0000 - 9999 | 0120 | min |
Note: the factory defaults of hiu (500 V) and lou (130 V) are the disabling values — over- and under-voltage protection is inactive as shipped until the installer sets real cut-off limits (typical: 460 V / 350 V for three phase, 270 V / 200 V for single phase).
DM-Universal-V1 Fault Codes and Reset Procedures
Reset safety clarification: The fault rules below use the latest VUKAR confirmation and supersede older reset advice in the linked PDF. The MENU procedure here is for supported non-DEV-N manual-reset faults. For DEV-N, hold SET for 2 seconds until RST appears, then release SET; do not apply this to HIU, LOU or SPP. Manual reset is not a repair or permission to restart an unsafe installation.
The device shows FLT on the top display and the fault code on the bottom display. Reset procedures as given in the manual:
| Display | Fault | Reset type | Reset procedure (per manual) |
|---|---|---|---|
| FLT / oL | Overload | Manual Reset, Power Reset | Manual: press and hold MENU switch for 2 seconds. Power: turn the power OFF and then ON (only if olm parameter value is No). |
| FLT / dr | Dry Run | Auto Reset, Manual Reset, Power Reset | Auto: fault clears after rst (Rest Timer) duration, only if Cyclic Timer is enabled. Manual: press and hold MENU for 2 seconds. Power: turn the power OFF and then ON. |
| FLT / hiu | Overvoltage | Auto Reset | HIU cannot be manually reset. It clears automatically when voltage returns within the permitted range. Do not widen protection limits simply to suppress trips. |
| FLT / Lou | Undervoltage | Auto Reset | LOU cannot be manually reset. It clears automatically when voltage returns within the permitted range. Do not lower the protection limit simply to suppress trips. |
| FLT / SPP | Phase Failure | Auto Reset | SPP applies to three-phase-powered devices, panels and meters. It cannot be manually reset. It clears automatically when the three-phase sequence is correct AND phase unbalance is within the permitted range. If it persists, arrange qualified inspection; do not treat changing phase wires as a reset procedure. |
DM-Universal-V1 Terminal Connections
Terminal functions from the Digital Meter Connection Diagram (Connection Description, page 9). The device has a 20-terminal block: terminal 2 = C, 3 = NO, 4 = S1, 5 = S2 (top row); 12 = L3, 13 = U1, 14 = SPP, 15 = VLT, 16 = CT2, 17 = CT1, 19 = GND, 20 = +12V (bottom row).
| Terminal | Function |
|---|---|
| C | Permanent Relay - Common |
| NO | Permanent Relay - Normally Open |
| S1 | Momentary Relay - Common |
| S2 | Momentary Relay - Normally Open |
| L3 | Lower Tank Sensor (when not used, connect with GND) |
| U1 | Upper Tank Sensor (when not used, connect with GND) |
| SPP | Single Phase Preventer, to be connected with SPP pin of Power Supply PCB (when not used, connect with Pin 18) |
| VLT | Voltage Detector, to be connected with AC1 pin of Power Supply PCB |
| CT1 | CT Coil Wire 1 |
| CT2 | CT Coil Wire 2 |
| GND | GND, connected with Power Supply PCB |
| +12V | +12V DC, connected with Power Supply PCB |
All values above are transcribed from the scanned manuals linked at the top of this page. If a value here disagrees with the printed manual supplied with your device, follow the printed manual and contact Technical Support.