S+S Regeltechnik Rymaskon 600 Operating Instructions Manual page 27

Operating instructions
RYMASKON ® 600 - BACnet
RYMASKON ® 600 - Modbus
SCALE
ANALOGUE OUTPUTS ⁄
CAPACITY LIMIT
RELAY OUTPUTS
BLOWER CONTROL
Typ 620 (0.5 A)
Typ 630(7A)
Typ 650 (0.5 A)
Typ 660 (7A)
RELAY OUTPUT
TEMPERATURE CONTROL
OPEN ⁄ CLOSE
Typ 650 (0.5 A)
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Each of the three analogue outputs (Y1/ Y2/ Y3) can be assigned a minimum and maximum output voltage
(between 0...100 %) (default: min = 0 % / max = 100 %).
The capacity specification from the control circuit (0...100 %) is then scaled through the
minimum output voltage to the maximum one.
Example:
To have the EC fan always work at the maximum speed, set the minimum output voltage to 10 % (1 V)
and the maximum output voltage to 70 % (7 V).
In that case, the 0...100 % control circuit output (Control Loop) on the analogue output is scaled to 10...70 % .
This helps to minimise blower noise and fan speed.
The values are available in connected systems for the bus master to write/read.
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The unit types RYMASKON 620/630/650/660 each have three relay outputs (RLY1/2/3)
to be used for controlling three-speed blowers (one relay switches with time).
Relay 1 "ON": at approx. 30 % of blower consumption
Relay 2 "ON": at approx. 60 % of blower consumption
Relay 3 "ON": at approx. 90 % of blower consumption
The relays switch to "OFF" if the consumption is approx. 20 % below the respective switch-on value.
NOTE: To use the relay outputs to control the fans, the operating mode of the analogue output Y1
must be set to "Fan" (default).
NOTE: Types 620/650 have been designed for a maximum nominal resistive load of 0.5 A.
Types 630/660 have been designed for a maximum nominal resistive load of 7 A.
The RYMASKON ® 650 unit type has a fourth 230 V AC relay (RLY4)
to interconnect heating and cooling valves using 230 V AC "OPEN/CLOSE".
Ensure to set output Y2 to one of the following configurations
(see chapter "Analogue outputs modes"):
• Htg Stage1 Stat
If the Y2 output capacity exceeds 10 %, RLY4 switches heating stage 1.
If the Y2 output capacity is 0 %, RLY4 switches heating stage 1 back.
• Clg Stage1 Stat
If the Y2 output capacity exceeds 10 %, RLY4 switches cooling stage 1.
If the Y2 output capacity is 0 %, RLY4 switches cooling stage 1 back.
• Fan Stat
If the Y2 output capacity exceeds 10 %, RLY4 switches the fan.
If the Y2 output capacity is 0 %, RLY4 switches the fan back.
Type 650 also allows Y1 to be configured for "Htg Stage1 Stat" or "Clg Stage1 Stat".
In that case, relay 3 (RLY3) switches another open/close valve according to the description above.
This allows the controller to be used for heating and for cooling control of open/close valves.
If this application requires an additional fan control, use an EC fan.
It will be activated by the Y3 analogue output (0...10 V, EC fan).
Ensure to configure the Y3 output to "Fan" (see chapter "Analogue output modes").
NOTE: Type 650 has been designed for a maximum nominal resistive load of 0.5 A.
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