S-Klima CompTrol - Comptrol Interface Electrical Supply; Pin Headers S5 and S6; Electrical Supply Via X;Y Remote Control Bus (Terminal X1) for a Comptrol Interface Expansion Module that Is Not in Combination with a Comptrol Master Expansion Module; Electrical Supply Via Terminal X5 for a Comptrol Interface Expansion Module in Combination with a Comptrol Master Expansion Module

18 CompTrol Interface V4.0.x | Issue 21-05-2021 | 1000932
Product description
4.2 CompTrol Interface electrical supply
The CompTrol Interface has two types of electrical supply. It can be supplied with power by either
the X/Y remote control bus X1 (terminals X1-X, X1-Y) or an external power supply unit (terminals
X5-(+) and X5-(-)). The type of electrical supply is determined by the position of the jumpers on
pin headers S5 and S6 (see “Table 5: Type of electrical supply” on page 18).
4.2.1 Pin headers S5 and S6
Type of electrical supply
The position of the jumpers on pin headers S5 and S6 determines the current type of electrical
supply.
S5 S6 Electrical supply via X1 S5 S6 Electrical supply via X5
Electrical supply via X/Y remote con-
trol bus
External electrical supply via terminals
X5-(+) and X5-(-)
Table 5: Type of electrical supply
Note
●
If the CompTrol Interface is connected to a CompTrol Master via terminals X2 and X4, it must
be supplied with power via an external power supply unit.
●
An external power supply unit is not included in the product package; see CompTrol Master
Technical Manual.
4.2.2 Electrical supply via X/Y remote control bus (terminal X1) for a CompTrol Interface
expansion module that is not in combination with a CompTrol Master expansion
module
The X/Y remote control bus is designed as a power bus with reverse polarity protection, and sup-
plies the CompTrol Interface with the required operating voltage (see “Table 5: Type of electrical
supply” on page 18). An external power supply unit is not required.
4.2.3 Electrical supply via terminal X5 for a CompTrol Interface expansion module
in combination with a CompTrol Master expansion module
When combined with a CompTrol Master, the CompTrol Interface must be supplied with the nec-
essary operating voltage via an external electrical supply (terminals X5-(+) and X5-(-)) (see “Ta-
ble 5: Type of electrical supply” on page 18). Terminal X5 does not have reverse polarity protec-
tion. An electrical supply via the X/Y remote control bus is not possible. An external power supply
unit is required.
4.3 Communication connections
The CompTrol Interface has two bus systems. The remote control, indoor unit, and CompTrol
Interface communicate with one another via the X/Y remote control bus X1 (terminals X1-X,
X1-Y). One CompTrol Master can communicate with a maximum of ve CompTrol Interfaces via
the CompTrol Interface bus (terminals X2, X4).