Ssm And Sbm Connection; Connection Of Digital, Analogue And Bus Inputs - Wilo -Stratos GIGA2.0-I Einbau- Und Betriebsanleitung

en
7.2

SSM and SBM connection

18 19 20 21 22 23
Fig. 23: Terminals for SSM and SBM
7.3 Connection of digital, analogue
and bus inputs
1
2
3
4
Fig. 24: Shield clamp
158
SSM (collective fault signal) and SBM (collective run signal) are connected to terminals
18 ... 20 and 21 ... 23.
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:
• If a fault is present, the contact at NC is normally open contact.
• The converter bridge to NO is closed.
The following applies to SBM:
• 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 shielded
via the metal threaded cable gland of the cable bushing (Fig. 18, Item 4, 5 and 6). See Fig. 24
for shielding.
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 included in 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 isolation" requirement (according to EN 61800-5-1) to the mains
terminals, the terminals SBM and SSM (and vice versa).
NOTICE
The control is designed as a SELV (Safe Extra Low Voltage) circuit. In this
way, the (internal) supply fulfils the requirements for safe separation of
the supply. GND is not connected to PE.
NOTICE
The pump can be switched on and off without intervention from the oper-
ator. This can be done, for example, using the control function, by external
BMS connection or also by the EXT. OFF function.
Installation and operating instructions • Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D • Ed.02/2022-07