Operation
Ex p control unit
Motor Purge Controller
Page 62 of 96
01-37A2-7D0003_Operating instructions_MPC_20210923_0_en.docx
Rev. 0
7.16
Messages
In the “Extended / Relays” menu, the switching
points can be assigned to the relays K2, K3 and K4.
Attention! When programming K2 to switch to K1.
If the relay K2 is used as a release relay, further
message values for relay K2 are not taken into
account. SIL relevant.
Assign messages to the signalling relays K3 and K4.
In the following example, the relays are set for the following messages.
Relay K2: Additional release (SIL)
Relay K3: Alarm message when falling below p1 and if p4 is exceeded
Relay K4: Indicates bypass operation
Procedure:
Call up the Advanced / Relay menu
Activate the specific message(s) in the “Relay K2” column by clicking on
the corresponding button.
Click on the “K1” button.
The button changes from to
Confirm pop-up window with the changed value(s)
Activate the specific message(s) in the “Relay K3” column by clicking on
the corresponding button.
Click on the “p1-” and “p4+” buttons.
The button changes from to
Confirm pop-up window with the changed value(s)
Activate the specific message(s) in the “Relay K4” column by clicking on
the corresponding button.
Click on the “Bypass” button
The button changes from to
Confirm pop-up window with the changed value(s)
Deactivate the programming switch
In the case of any messages with a “minus” sign, it indicates that the relay will
be activated if the value falls below the limit.
In the case of any messages with a “plus” sign, it indicates that the relay will be
activated if the value is exceeded.
Messages without any plus/minus sign are activated when the respective value
is activated.
