Installing the electrical connection
26
K-MT1-8_EN_08—2014
Connecting the external signalling lines
For compressor synchronisation
The controller is fitted as standard with a digital input which makes the dryer
regeneration dependent on operation of the compressor (switch S1 on the
controller’s circuit board, see also figure below).
If switch S1 is in the ON position, operation of the compressor and dryer
regeneration run synchronously: When the compressor is stopped, the dryer
regeneration also stops. When the compressor is restarted, regeneration also
restarts.
If switch S1 is in the OFF position, any regeneration process which has been
started, is always continued until completed.
To install the external line, proceed as follows:
►
Connect the signalling line to the potential-free busbar connection of the
compressor to terminals 1 and 2 on the control board (see circuit diagram).
Hinweis:
The compressor synchronisation controller is a higher-level controller
than the pressure dew point controller. When both options are in
place, the compressor synchronisation controller is treated as the
prime controller.
For operation monitoring system (optional)
Operators have the option to connect the dryer to a fault signalling system,
connecting the respective line to a potential-free operation signalling contact.
With this option, the following statuses and events can for example be
transmitted to a remote control room:
Dryer on (contact made)
Power supply disconnected (no contact)
Dewpoint alarm (only with
dewpoint-sensing control
option, no contact)
To install the external lines, proceed as follows:
►
Connect the lines of the fault signalling system to relay K5 (see circuit
diagram).
Check bolt connections
Before the initial start-up:
►
Check all unions and bolt connections as well as the terminals in the control
cabinet for secure seating; re-tighten if necessary.
