Table of Contents
Advertisement
Valve outputs | Valve output - General
By contrast, switching command values are inverted for deenergised opened valve
drives. Example: Command value ON -> Output switched off, Command value OFF -
> Output switched on.
On the LED status display, the valve direction of action configured for each
output in the ETS is not taken into account. As a result, the LEDs do not im-
mediately display the valve state (opened / closed). Inversion of the status dis-
play according to the valve direction of action thus does not take place.
In the as-delivered state, the valve direction of action for all the valve outputs
is set to "deenergised closed".
9.4.5 Reset behaviour
The states of the valve outputs after bus voltage return or after an ETS programming
operation can be set separately.
Setting the behaviour after bus voltage return
The parameter "After bus voltage return" is available separately for each valve output
on the parameter page "VOx - General".
￭
Set the parameter to "Preset command value".
The actuator sets the command value preset for the valve output by the para-
meter "Command value". For valve outputs configured in the ETS to the com-
mand value data formats "Switching (1-bit)" or "Constant (1-byte) with com-
mand value limiting value", a constant command value can also be preset us-
ing the parameter "Command value". In this case, a pulse width modulation
(5% ... 95%) is executed for the affected command value outputs. In the "0%"
and "100%" presettings, the valve outputs are activated continuously. The pre-
set PWM remains active until other functions have been executed or a new
command value telegram is received via the bus, overriding the constant com-
mand value on the valve output.
￭
Set the parameter to "Activate command value according to forced position".
For the valve output, the actuator polls the command value preset for the
forced position, as configured in the ETS. Here, the active operating mode
(summer / winter) is taken into account, providing that a summer / winter
change-over is configured. Ensure that, in this setting, the forced position func-
tion is not executed! The actuator only polls the command value preset for the
forced position.
￭
Set the parameter to "Activate command value according to emergency opera-
tion".
For the valve output, the actuator polls the emergency operation command
value, as configured in the ETS. Here, the active operating mode (summer /
winter) is taken into account, providing that a summer / winter change-over is
configured. Ensure that, in this setting, emergency operation is not executed
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
Page 73 of 257
Advertisement
Table of Contents
