Functions
9.2 Power output control
SIPLUS HCS4200
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Operating Instructions, 11/2015, A5E35066204A/RS-AA/002
9.2.3
Switch on heating
Switch on heating
To control the power outputs, the heating must first be activated. This is done via the cyclic
data.
Heating status
Description
On
Channels are activated
Off
Channels are deactivated.
Note
A time-delayed start-up or channel soft start only occurs if heating is "On".
Time-delayed channel start-up
To reduce the load on the supply system to a minimum, the power outputs are always
switched on in sequence upon start-up. The sequence is as follows:
1
The user has specified the field setpoints and the channel setpoints
2
The user activates the required operating mode
3
The user switches the heating "On"
4
Several POMs are activated with a time offset in ascending slot order
5
Within each POM, the channels of a phase are also started in sequence. The channels of the
two phases are activated "simultaneously" in each POM.
Depending on the configuration, the overall startup can take up to 3 seconds.
If during operation a channel is switched off and then on again, switch-on takes place
immediately.
9.2.4
Channel control via setpoints
It is possible to control the channels using only the setpoints in the cyclic data. In this mode,
it is not necessary to combine channels into fields and to assign field setpoints.
The operating mode setting in the cyclic data (production, standby) is not relevant in this
case.
