Installation guide

Warning
Please Note
The specifications of the product detailed on this
Set-Up Guide may change without notice. RDM
Ltd. shall not be liable for errors or for incidental
or consequential damages, directly and indirectly,
in connection with the furnishing, performance or
misuse of this product or document.
Ensure that all power is
switched off before
installing or maintaining
this product
Revision 2.7 Page 52 of 83
Mercury Plant Controller Installation Guide
An “INV Bypass” alarm will be generated.
Note if the inverter run signal is not returned within the allotted time in the first instance but is successful in the
second, third or fourth attempt (Depending on (P442/443) then any future inverter run tests must still complete all
tests.
To reinstate the inverter output, once the fault has been rectified, either reset the Plant controller or by using the
Override feature force the relay associated to the inverter on.
The status inputs should be mapped to the relay used as the Inverter Enable relay for a given section i.e. if relay 1
is the first Inverter relay then status Input 1 would become the inverter run input for Section 1. If the second Inverter
relay is 5 then status Input 5 would become the inverter run input for Section 2.
Please see Relay Outputs – Configuration.
Relay Run Hours
The total run hours for each relay can be viewed via a Laptop/PC or from the Data Manager frontend. This feature
informs the user of the total number of hours a given relay has been on. Therefore if a compressor is assigned to a
relay the total run hours for the compressor can be viewed. To reset the run hours for any given relay connect to
the Plant controller using a PC/Laptop. Login and click on the configuration link. Entering 0 into anyone of the relay
hour fields and pressing the set configuration button will reset the run hours for that relay back to 0. Run hours
apply to all relays including the Alarm relay.
Relay Starts
The total number starts for each relay can be viewed via a Laptop/PC or from the Data Manager frontend. This
feature informs the user of the total number of starts for a given relay. Therefore if a compressor is assigned to a
relay the total number of starts for that compressor can be viewed. To reset the relay starts count for a given relay
connect to the Plant controller using a PC/Laptop. Login and click on the configuration link. Entering 0 into anyone
of the relay start fields and pressing the set configuration button will reset the count for that relay back to 0. Relay
starts apply to all relays including the Alarm relay.
Setup via a PC
Log on to the RDM web site and go to Support -> Software.
Download the following folder: - Plant Controller USB drivers for Windows XP/2000. Contained within this folder are
installation instructions and the drivers required to connect to the Mercury Plant controller. A USB cable is required
which connects to a Type A USB connector (PC) at one end and a Type B USB connector at the other end (Plant
USB Device port).