The Controller; Three-Phase Power Supply; Single Phase Power Supply; Rotational Direction Check - Homa PCM Series Original Instruction Manual

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
PCM
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.
BA V2.0 01052020
PCM

5.5. The individual function areas on the front panel

Power on
Alarm
Service
PUMP 1
General section
Fault
Green „Power on" LED:
Auto off
Constant illumination indicates that the PCM is receiv-
ing a power supply and is ready for operation
Run
Red „Alarm/Service" LED:
Constant illumination indicates that an alarm is present.
PUMP 2
Fault
The following messages result in an alarm message:
- High water level
Auto off
- Signal value < 4 mA at 4-20 mA (lead break)
Flashing indicates that a service is required. The set time
Run
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-
Power on
tooth connection is automatically interrupted and the LED
goes out.
Flashing indicates that a connection is being established. Alarm
Service
„Unlock" button
Pressing the „Unlock" button activates the Bluetooth
module and unlocks the keypad.
PUMP 1
Fault
Auto off
PUMP 2
Fault
Auto off
Pump 1 and pump 2
Reset
Unlock
Auto off
Hand
Auto off
Hand
Reset
Unlock
Auto off
Hand
Run
Auto off
Hand
Run
TIP
> 2s
TIP
> 2s
TIP
> 2s
TIP
> 2s
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