Electrical Connections Of Pol955 Expansion - Siemens TUTORbit POL687 Instructions For Installation, Use And Maintenance Manual

Input/output description
Legend
Output 0-10V for heat pump
37
control
Alarm contact from the heat
38
pump
ON / OFF or "Cool" demand
39
heat pump
"Heat"/"Cool" or "Heat"
40
domand heat pump
DHW demand o double
41
setpoint
ATTENTION !!! The terminals marked with (1), being subjected to very low safety voltage (24Vdc), must flow
in conduits other than 230Vac power supplies.
Figura 4-4 - Electrical connections POL 955
COSMOGAS
4.3 - Electrical connections
of POL955 expansion
The POL955 expansion is used to control only a heat pump.
For this purpose, various configurable inputs and outputs have
been provided (see detail in Figure 4-4), in order to adapt the
controller to most of the heat pumps on the market.
To properly communicate the expansion with the regulator, it
is always necessary to set logical address "5", by positioning
the microswitches (Section 4.4).
The POL 955 expansion can be installed on a DIN rail and is
supplied with the terminals for the electrical connections and
the bayonet for the electrical connection to TutorBit.
Corresponding terminals
on expansion POL955
X1; M
X3; M
Q13; Q14
Q23; Q24
Q33; Q34
11
Characteristics of the cables to be used
and maximum electrical absorption
(1) Ø 1,5 mm / 20 m Max o 100 m shielded cable;
2
(1) Ø 1,5 mm / 20 m Max o 100 m shielded cable;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
TUTORBIT