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The Modbus signal properties set as default are listed in the chapter "Control and communication functions".
7.2.4
Signal cable connection
Connection socket is designed as an AMP Mini Superseal 3P CA (external view of the pump connection)
Cable assignment
PIN
Cable colour
1
Brown
2
grey or blue
3
Black
The design of the control cable should contain the features of the following table:
Feature
Length
Table 6: Control cable features
Connect cable:
•
Check the presence and integrity of the seal on the connector before installation.
•
Connect the signal cable plug to the signal connection socket (Fig. I, Item 11) until it snaps into place.
•
Ensure that the connecting cable does not contact either the pipes or the pump.
CAUTION
Risk of material damage!
In case there's no cable connected, and the cable connection is in the 12 o'clock position, a
dummy plug (accessory) shall close the connection in order to ensure IP protection.
7.2.5
SSM signal properties
An integrated collective fault signal is applied as a potential-free normally closed contact.
Contact load:
•
Permitted minimum: 12 V AC/DC, 10 mA
Installation and operating instructions • Wilo-Para MAXO/-G/-R/-Z • Ed.04/2024-11
0 to 10 V
PWM
Signal
0 to 10 V signal PWM input
ground (GND)
ground (GND)
not allocated
not allocated
Recommended value
for 0 to 10 V signal: max. 30 m
for PWM, iPWM, LIN, Modbus interfaces: max. 3 m
iPWM
LIN
Extended
PWM input
Vbus
ground (GND)
ground (GND) ground
PWM output
LIN signal
en
Modbus
B (+)
(GND)
A (-)
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