General instructions
This supplementary sheet is an addition to the Softmaster
®
ROE 2 operating instructions. It only contains the
additional functions or modifications of the special version Softmaster
®
ROE 2 S5. This supplementary sheet is only
valid in combination with the standard Softmaster
®
ROE 2 operating instructions.
When using the remote maintenance software “Heyl Remote Contol”, please observe that the software only covers
the standard functions of the ROE 2.
Description
The processing and programming of the low water message has been modified according to the following
description. Please refer to the Softmaster
®
ROE 2 operating instructions for further information.
LP Low water pressure (terminals “LP” / 33, 34)
Connection for volt-free pressure switch
Install a pressure switch in front of the pump in order to protect the pressure pump. A serial or parallel connection of
two pressure switches is also possible. If the pressure switch switches, the plant is switched off after a programmable
test time. The fault is displayed with the red LED "Error message" and on the display. A continuous alarm occurs at
output "Alarm" and an entry in the error list takes place.
Only for controller operation with the “RUN/STOP” key:
Function Type of contact Test time Action
Pressure monitoring in
front of the pump
programmable
normally closed/
normally open
programmable
01 - 99 seconds
programmable:
- Test time 1 - 99 sec
Not programmable:
- Switch off the plant
- Continuous alarm after switch off
- Entry in the error list
Only for controller operation with level transmitter:
Function Type of contact Test time Action
Pressure monitoring in
front of the pump
programmable
normally closed/
normally open
programmable
01 - 99 seconds
Programmable:
- test time 1 bis 99 sec
- Up to 9 restarts
- Repeat interval 1–99 min
- Immediate alarm for first message
Not programmable:
- System switch off
- Continuous alarm after switch off
- Entry in the error list
It is possible to program the reaction of the controller during low water. Determine how often the plant is to be
restarted. A restart occurs between 1 and 99 minutes depending on the programming. If the water is still too low, the
plant is once again switched off after the test time and until the number of restarts has been reached. If you wish to
generate an error message for the first low water message irrespective of the number of restarts attempts, select
“Immediate alarm” in the last menu option. This does not stop the further restart attempts.
The following options activate output alarm “AL”:
- the maximum number of restarts has been reached
or
- “Immediate alarm” in the menu is setting
An entry in the error list occurs in both cases.
2 / 3
