Wilo STRATOS GIGA, Installation And Operating Instructions Manual

Page: 94 / 265

English
94 WILO SE 03/2018
Table 4: Connection terminal assignment
NOTICE:
The terminals In1, In2, AUX, GND, Ext. off and MP meet the require-
ment for “safe isolation” (in acc. with EN 61800-5-1) to the mains
terminals, as well as to the SBM and SSM terminals (and vice versa).
NOTICE:
The control is designed as a PELV (protective extra low voltage) cir-
cuit, meaning that the (internal) supply meets the requirements for
safe supply isolation; the GND is connected to PE.
In2
(Input) Setpoint input In2 can be used as the input for remote adjustment of the
setpoint in all operating modes.
Type of signal: Voltage (0–10 V, 2–10 V)
Input resistance: R
i
≥ 10 k Ω
Type of signal: Current (0 – 20 mA, 4 – 20 mA)
Input resistance: R
i
= 500 Ω
Can be configured in the service menu <5.4.0.0>
GND (2) Earth connections For both input In1 and In2
+ 24 V (3) (output) DC voltage for an ext. consumer/
signal transmitter Max. load 60 mA. The voltage is short-circuit proof.
Contact load: 24 V DC/10 mA
AUX External pump cycling Pump cycling can be performed using an external, potential-
free contact. One-time bridging of the two terminals will cause
external pump cycling to take place, if it is enabled. Bridging a
second time will cause the procedure to repeat, provided the
minimum run time is adhered to.
Can be configured in the service menu <5.1.3.2>
Contact load: 24 V DC/10 mA
MP Multi Pump Interface for double pump function
Ext. off Control input “Overriding OFF”
for external, potential-free
switch The pump can be switched on/off via the external potential-
free contact.
In systems with a high switching frequency (> 20 on/off
operations per day); switching on/off must take place via
“Extern off”.
Can be configured in the service menu <5.1.7.0>
Contact load: 24 V DC/10 mA
SBM Individual run signal/collective
run signal, readiness signal and
mains On signal Potential-free individual run signal/collective run signal
(changeover contact), operation readiness signal is available
at the SBM terminals (menus <5.1.6.0>, <5.7.6.0>).
Contact load: Minimum permitted: 12 V DC, 10 mA,
Maximum permitted: 250 V AC/24 V DC, 1 A
SSM Individual/collective fault signal Potential-free single/collective fault signal (changeover
contact) is available at the SSM terminals (menu <5.1.5.0>).
Contact load: Minimum permitted: 12 V DC, 10 mA,
Maximum permitted: 250 V AC/24 V DC, 1 A
Interface
IF module Connection terminals of the
serial digital BA interface The optional IF module is pushed into a multi-plug in the
terminal box.
The connection is twist proof.
Designation Assignment Notices