CONNECTION
OPERATION
ASSEMBLY
1. Disconnect the power supply circuit with
a fuse, an overcurrent circuit breaker or isola-
tor switch-disconnector combined to the cor-
responding circuit.
2. Check voltage-free condition on supply con-
ductors using proper measuring instrument.
3. Mount the APM-10 in the switchgear on the
DIN-Rail rail
4 . Connect the wires to the terminals in accord-
ance with the wiring diagram.
5. Set the response thresholds of the device us-
ing the potentiometers: U
max
, U
min
, Т
r
i Т
on
.
NOTE! During operation, the values of U
max
,
U
min
, T
r
and T
on
can be changed, provided
that the safety rules are observed.
6. Switch on the power supply.
7. Check if the device operates properly.
WARRANTY CARD
Manufacturer provides a 24-month warranty
Seller’s stamp and signature, date of sale
1. ZAMEL Sp. z o.o. shall offer a 24-month warranty on the products sold.
2. The warranty provided by ZAMEL Sp. z o.o. shall not cover:
a) mechanical damage caused during transport, loading/unloading or in other circumstances,
b) damage caused by incorrect installation or operation of products manufactured by ZAMEL Sp. z o.o.,
c) damage resulting from any changes made by the BUYER or third parties in the products sold or equipment necessary for the
proper operation of the products sold,
d) damage resulting from force majeure or other fortuitous events for which ZAMEL Sp. z o.o. is not liable.
3. Any warranty claims shall be made by the BUYER at the point of sale or to ZAMEL z o.o. in writing after defects have been identi-
fied.
4. ZAMEL Sp. z o.o. undertakes to handle complaints in accordance with the applicable provisions of Polish law.
5. The choice of the form of complain resolution, e.g. replacement of a product with a product free from defects, repair, or reimburse-
ment of money, shall lie with ZAMEL Sp. z o.o.
6. The warranty does not exclude, limit, or suspend BUYER’s rights under the statutory warranty for defects in the item sold.
The APM-10 electronic phase switch is a microprocessor-based digital device. The user sets response thresholds for the minimum and maximum voltage
values at which the phase switch activates and switches the reserve phase (disconnects the load). The lighting of one of the green LEDs L1, L2, L3 on the
front panel indicates the phase to which the load is connected.
With the correct voltage on all phases (L1, L2, L3), the load will be connected to phase L1. If the voltage value on L1 exceeds the threshold, APM-10 will
check the L2 phase and connect the load to it. If the voltage on L2 exceeds the response thresholds, the APM-10 will connect the load to the L3 phase.
When the voltage on the reserve phases exceeds the set thresholds, the load is disconnected.
NOTE! Switching to a phase with incorrect parameters is not possible.
After switching to the reserve phase and restoring the correct voltage parameters on the priority phase, the load will be switched to the priority phase after
the user-set recovery time.
NOTE! If the voltage on the priority phase exceeds the thresholds during the recovery time countdown, the timer will restart.
If T
r
is set to „∞”, the priority phase is switched back to the output only if the voltage on the reserve phase exceeds the set thresholds.
If the voltage applied to the load falls below the minimum allowable voltage, the load is switched on or off with a time delay of 12 seconds. If the voltage
value rises above the maximum allowable voltage threshold or drops 30 V below the minimum allowable voltage threshold, the load is switched or discon-
nected with a time delay of 0.2 s.
When the load is disconnected, the APM-10 continues to monitor the voltage on all phases.
When the voltage on one of the phases is restored to acceptable parameters, the APM-10 will connect a load to that phase within the T
on
timeout.
If the load is disconnected on all three phases, the „ALARM” LED will light up. When the voltage on all three phases exceeds the preset response thresh-
olds, the load will be disconnected and the „ALARM” LED will light up. If several APM-10 phase switches are used in a network, it is recommended to select
different phases for different groups of consumers as „priority” in order to prevent overloading of the phases.
Timing
chart:
Internal
Circuitry
L2
L3
OUT
OUT
OFF
OUT
OFF
L1
PK1
PK2
PK3
L1
L2
L2
L1
L3
L3
L1
U
min
U
min
U
min
U
min
U
max
U
max
U
max
max 0,2 s
T
r
T
on
T
on
L1
L2
L3
N
