Ssm And Sbm Connection; Connection Of Digital, Analogue And Bus Inputs - Wilo Stratos GIGA2.0-Serie Montageanleitung

8.2

SSM and SBM connection

8.3 Connection of digital, analogue
and bus inputs
1
2
3
4
Fig. 24: Shield clamp
Installation instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D
Electrical connection
18 19 20 21 22 23
Fig. 23: Terminals for SSM and SBM
SSM (collective fault signal) and SBM (collective run signal) are connected to terminals
18 and 21.
The cables of the electrical connection for SBM and SSM do not have to be shielded.
NOTICE
A maximum of 230 V may be applied between the contacts of the relays of SSM and
SBM, never 400 V!
When using 230 V as a switching signal, the same phase must be used between the
two relays.
SSM and SBM are designed as changeover contacts and can each be used as a normally
open contact or normally closed contact. When the pump is voltage-free, the contact is
normally closed contact. The following applies to SSM:
ƒ
If a fault is present, the contact at NC is normally open contact.
ƒ
The converter bridge to NO is closed.
The following applies to SBM:
ƒ
Depending on the configuration, the contact is set to NO or NC.
The cables of the digital inputs, analogue inputs and bus communication must be shiel-
ded via the metal threaded cable gland of the cable bushing 4, 5 and 6. See Fig. 24.
When used for extra-low voltage cables, up to three cables can be passed through for
each threaded cable gland. Use the appropriate multiple sealing inserts for this purpose.
NOTICE
2-fold sealing inserts are part of the scope of delivery. If 3-fold inserts are required,
procure these inserts on-site.
NOTICE
If two cables have to be connected to one 24 V supply terminal, provide a solution
on-site!
Only one cable per terminal may be connected to the pump!
NOTICE
The terminals of the analogue inputs, digital inputs and Wilo Net meet the "safe isol-
ation" requirement (according to EN61800-5-1) to the mains terminals, the termin-
als SBM and SSM (and vice versa).
en
91