AC•THOR
®
/ AC•THOR
®
9s Operating instructions, version a0020806
46
Frequency
The frequency range in which the adjustable power can be linearly fed can be altered. As lower limit
(no power) and upper limit (maximum power) a range between 45 and 65 Hz is available. The
factory settings are 50 Hz and 51 Hz. The frequency range must be at least 0.5 Hz!
Maximum power
The input of maximum power of the heating load is extremely important for this operating mode.
This is why this setting possibility appears here in second place again, in addition to its normal
position in the settings. See "General Settings" for details.
Control with 3.3 - 24 V DC voltage from external source
The
AC•THOR
can also be operated via an external PWM signal with variable power. The
corresponding signal input is located at the 8-pin connector to which the temperature sensor is also
connected.
This control is independent of the selected operating mode. If a PWM signal is present, all other
control signals that might be available via a network are also overridden. If the boost backup mode
is
set at the AC•THOR, it remains valid.
When using several AC•THORs, a separate PWM signal is required for each device. Multimode
is not possible with this control mode!
As soon as a PWM signal is present, it is displayed in percent on the bottom right of the display
above the help button.
Observe the polarity of the DC voltage!
