Roth BW/H Komfort HE, Руководство для специализированного ремесленника

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52
en
Function block
In addition to the pre-defi ned optional functions, function blocks consisting of ther-
mostat functions, timer and differential functions are available. With the help of
these function blocks, further components, resp. functions can be controlled.
To each function block, sensors and free relays can be allocated. Sensors already in
use can be allocated again without impeding their control functions.
Within a function block the functions are interconnected (AND gate). This means
that the switching conditions of all the activated functions have to be fulfi lled (e. g.
thermostat and timer) for switching the allocated relay. As soon as one condition is
not fulfi lled, the relay is switched off.
Thermostat function
The switch-on condition for the thermostat function is considered fulfi lled when
the adjusted switch-on temperature (Th(x) on) is reached. It is considered unful-
fi lled when the adjusted switch-off temperature (Th(x)off) is reached.
Allocate the reference sensor in the Sensor channel.
Adjust the maximum temperature limitation with Th(x)off> Th(x)on and the mini-
mum temperature limitation with Th(x)on> Th(x)off. The temperatures cannot be
set to an identical value.
∆
T function
The switch-on condition for the
∆
T function is considered fulfi lled when the ad-
justed switch-on temperature (
∆
T(x) on) is reached. It is considered unfulfi lled
when the adjusted switch-off temperature (
∆
T(x)off) is reached.
The
∆
T function is equipped with a speed control function. A set temperature dif-
ference and a minimum speed can be adjusted. The non-adjustable rise value is 2 K.
Reference relay
Up to 5 reference relays can be selected.
Whether the reference relays are to be switched in series (AND) or in parallel
(OR) can be adjusted in the Mode channel.
In the OR mode, the switch-on condition for the reference relay function is consid-
ered fulfi lled when at least one of the reference relays is active.
If none of the reference relays is active, the switch-on condition for the reference
relay function is considered unfulfi lled.
In the AND mode, the switch-on condition for the reference relay function is con-
sidered fulfi lled when none of the reference relays is inactive. As soon as at least
one of the reference relays is inactive, the switch-on condition for the reference
relay function is considered unfulfi lled.
Note:
If more than one function block has been activated, relays of numerically
higher function blocks may not be used as reference relays.
Note:
For information on timer adjustment see page 11.
Function
Relay
Thermostat a
Thermostat b
∆
T - Function
Timer
Reference relay
Thb-S4 * T-S3>S4 * Timer Reference relay
R3 *
1. in parallel (OR)
RX
Ref. relay 1
Ref. relay 2
Ref. relay 3
Ref. relay 4
Ref. relay 5
2. in series (AND)
Ref. relay 5
Ref. relay 4
Ref. relay 3
Ref. relay 2
Ref. relay 1
Reference relay
* exemplary selection, sensors and relays can be allocated freely
∆ Tha-S3 *