Application And Function Of Ssm Relay; Application And Function Of Sbm Relay - Wilo -Stratos GIGA2.0-I Einbau- Und Betriebsanleitung

13.1 Application and function of SSM
relay
13.2 Application and function of SBM
relay
Installation and operating instructions • Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D • Ed.02/2022-07
The contact of the collective fault signal (SSM, potential-free changeover contact) can be
connected to a building automation system. The SSM relay can either switch on only in case
of fault or for faults and warnings. The SSM relay can be used as a normally closed contact
or a normally open contact.
• When the pump is without power, the NC contact is closed.
• If there is a fault, the contact at NC is open. The converter bridge to NO is closed.
In the "Settings" menu , select
1. "External interfaces"
2. "SSM relay function".
Possible settings:
Selection option
Only fault (factory setting)
Faults and warnings
Table 34: Function SSM relay
After confirming one of the selection options, the SSM trigger delay and SSM reset delay
are entered.
Setting
SSM trigger delay
SSM reset delay
Table 35: Trigger and reset delay
• Triggering of the SSM signal after occurrence of a fault or a warning is delayed.
• Resetting of the SSM signal after occurrence of a fault or a warning is delayed.
Trigger delays are used so that processes are not influenced by very short fault or warning
messages.
If a fault or a warning is fixed before the end of the set time, there will be no message to
SSM.
A set SSM trigger delay of 0 seconds immediately reports faults or warnings.
If an error message or warning message occurs only for a brief duration (e.g. in case of a
loose contact), the reset delay prevents the SSM signal from fluttering.
NOTICE
SSM trigger and SSM reset delay is set to 5 seconds as a factory setting.
SSM/ESM (collective fault signal/individual fault signal) in twin-head pump operation
• SSM The SSM function must preferably be connected to the main pump.
The SSM contact can be configured as follows: the contact reacts either only in the
event of a fault or in the event of a fault and a warning.
Factory setting: SSM only reacts in the event of a fault.
Alternatively or additionally, the SSM function can also be activated on the standby
pump. Both contacts work in parallel.
• ESM The ESM function of the twin-head pump can be configured on each twin-head
pump head as follows:
The ESM function on the SSM contact only signals faults of the respective pump (indi-
vidual fault signal). In order to detect all faults of the two pumps, the contacts must be
assigned in both drives.
The contact of the collective run signal (SBM, potential-free changeover contact) can be
connected to a building automation system. The SBM contact signals the operating status
of the pump.
Function SSM relay
SSM relay connects only in case of fault. Fault means:
The pump is not running.
SSM relay connects only in case of fault or a warning.
Range in seconds
0 s ... 60 s
0 s ... 60 s
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