SPA
Page 67
10. Potential Free Signal Outputs
The DS control unit features a base relay and - optionally - a set of 4
addional relays on a dedicated PCB offering potential free contacts for
signalling and switching purposes. Contact allocation may be taken
from the tables below.
10.1 Base Relay and Signal Relay PCB capacity
Max. contact load is 250VAC/5A.
10.1.1 Base Relay and Collective Fault
The base relay (on the PCB) delivers a potentialfree two-way contact
(load: 250V/8A) to terminals 28, 29 and 30.
It is triggered when a specified operational condition is present. The
preset operational condition is “Collective Fault.”
It is possible, but not advisable, to assign another operational condition
to the base relay / relay circuit (also see Summary Table of Parame-
ters, Parameter E5).
If steam generators C01 or C02 are equipped with the "230V supply
fan for C01 and C02" option or "230V exhaust fan for C01 and C02"
option, the switching message „Collective Fault” is not available.
Humidification:
The message
humidification
can be directly accessed from the main
contactor as indicated in the wiring diagram.
10.1.2 Signal Relay PCB and Steam Bath Functions*
The signal relay PCB is optionally attached to the main PCB of the DS-
Comfort / Plus Control or the Basic-DS. The signal relay PCB provides
four additional signal relays. Each relay is designed to control a spe-
cific steam bath component. Below are the factory settings for the relay
switching functions:
*: not valid for steam generators type C01 and C02
Signal Relay /
Contact
Contacts
Parameter for
Selecting
Switching Signal
Setting
Factory Setting for Switch-
ing Signal
Base Relay
Normally Closed
Contact
Normally Open
Contact
28, 29, 30
28, 29
28, 30
E5
0
Collective Fault
Please note
Summary of Contents for Basic-DS
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