Burkert Type 8620 - Manual (Page 72)

mxCONTROL Type 8620
Page 72
13 Outputs
The „Type 8620 mxCONTROL“ has 5 relay outputs by default.
Depending on the hardware version, the „Type 8620 mxCONTROL“ can have additional analog and
transistor outputs.
Configuration via the configuration file:
• Enabling and labelling the desired outputs
Configuration via the configuration file but also directly on the „Type 8620 mxCONTROL“:
• Other settings
Outputs of a configuration can be enabled or disabled directly at the device by enabling or
disabling them in the main menu item “Configuration”.
13.1 Relay Outputs
The relays can be used for activating of e.g.
• On/Off valves and pumps
• Dosing pumps (Pulse Frequency modulated (PFM-) outputs)
• Motor activated elements (3-point-outputs)
The relay outputs can be configured to work as
• Simple On/Off outputs
• Pulse Frequency modulated (PFM-) outputs outputs
• Pulse Width modulated (PWM) outputs.
PFM:
Pulse Frequency Modulation - modulation of a square wave signal with constant pulse duration
(Tpuls). The parameter “Tpuls” can be changed.
PWM:
Pulse Width Modulation - modulation of a square wave signal with constant frequency (Tperiod).
The parameter “Tperiod” can be changed.
The principle of PFM and PWM is shown in Figure 21 and Figure 22.
The configuration of all supported types of relay outputs is summarized in chapter 13.1.4.
Disabled outputs can no longer be accessed via the "Process Data" menu after returning to
the main menu.
Reactivation
is possible via the "Configuration" menu or by loading the original configuration.
By disabling outputs , the control outputs of the modules connected to these outputs can no
longer be provided to the process.