Homa PCM Series Original Instruction Manual Download

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EngliSH | 21

BA V2.0 01052020

5. The controller

5.1. Three-phase power supply

Power comes from a three-phase supply with L1/L2/L3/N/
PE-400/230 V 50/60 Hz.
The electronics are supplied via phase L1.
The contactors are controlled via phase L3.

5.2. Single phase power supply

For the operation of single phase pumps, a power supply
with L1/N/PE - 230 V 50/60 Hz is required. In this case, ter-
minals L1 and L3 are bridged in the controller (the contac-
tors are controlled via terminal L3). The check of rotational
direction has no effect.

5.3. Rotational direction check

After connecting the PCM to the power supply, the „Pow-
er on“ LED lights up. When connected to a three-phase
power supply, the direction of rotation is also monitored.

If L1/L2/L3 are connected correctly, the PCM starts op-
erating after a few seconds. If the rotational direction is
incorrect (order of L1/L2/L3 not observed, pump runs in
the wrong direction), the pump LEDs light up, alternat-
ing between yellow and red. For correct operation, two
phases in the supply must be swapped over.

The circuit is checked for correct phase sequence only;
asymmetry is not detected.

Please note: The message is automatically acknowl-

edged after 1 min. The „wrong“ direction of rotation

is then accepted by the controller.

The message „wrong“ rotational direction can also

be acknowledged by pressing the Reset button.

5.4. Battery, mains-independent alarm

A battery is not required for standard operation of the
pump controller.

All setting parameters are stored at zero volt in a fail-safe
EEPROM.
If a battery is installed (CR2032, 3V approx. 220 mAh), an
interval tone sounds via the beeper (a short tone pulse
every 5 seconds) in the event of a power failure. It should
last for approx. 1 year.

The tone pulse can be acknowledged by pressing the Re-
set button.

The battery is also required for the built-in clock to retain
the dates and times in the event list and fault message list
after a power failure.

If a Bluetooth connection is established between the con-
troller and a smartphone or tablet, the time and date on
the smartphone are transferred to the controller with a
deviation of at least 1 second.

If the battery voltage is too low (or no battery is inserted),
the alarm LED pulses briefly.

5.5. The individual function areas on the front panel

PUMP 1

PUMP 2

PCM

> 2s

TIP

> 2s

TIP

Power on

Alarm

Service

Fault

Auto off

Run

Reset

Run

Fault

Auto off

Unlock

Hand

Auto off

Hand

Auto off

General section

Green „Power on“ LED:
Constant illumination

indicates that the PCM is receiv-

ing a power supply and is ready for operation

Red „Alarm/Service“ LED:
Constant illumination

indicates that an alarm is present.

The following messages result in an alarm message:
- High water level
- Signal value < 4 mA at 4-20 mA (lead break)

Flashing

indicates that a service is required. The set time

until the next service has elapsed.

Pulsing

indicates that the battery has fallen below a min-

imum voltage (2.5 V).

„Reset“ button

Pressing the „Reset“ button acknowledges the alarm
message (signal buzzer and fault message relay).

Green „Unlock/Bluetooth“ LED:
Constant illumination

indicates that the Bluetooth mod-

ule has been activated and that other participants recog-
nise the PCM as a Bluetooth-compatible device. The key-
pad is also unlocked.
If there is no data traffic for longer than 5 minutes, a Blue-
tooth connection is automatically interrupted and the LED
goes out.

Flashing

indicates that a connection is being established.

„Unlock“ button

Pressing the „Unlock“ button activates the Bluetooth
module and unlocks the keypad.

PUMP 1

PUMP 2

PCM

> 2s

TIP

> 2s

TIP

Power on