Relay Outputs - Grundfos DMX Series Installation And Operating Instructions Manual

DMX model 227

7.3.1 Relay Outputs

R
C
+
-
1 1 1 1
K1 K2 K3 K4
L N PE PE
230 V AC /
115 V AC
V3.0
NOTE
Interference suppression is required for inductive loads (also relays and contactors).
If this is not possible, protect the relay contacts using a suppressor circuit as
described below.
With AC voltage:
Current up to Capacitor C
60 mA
70 mA
150 mA
1.0 A
With DC voltage: connect freewheeling diode parallel to relay or contactor.
CAUTION
NOTE
S1
1 1 1
K5 K6 K7
N
contakt 1
(non-floating
230 V AC / 115 V AC)
The relay output connection depends on the application
and the connected actuators.
Resistor R
390 Ω 2 W
10 nF 275 V
22 Ω 2 W
47 nF 275 V
47 Ω 2 W
100 nF 275 V
47 Ω 2 W
220 nF 275 V
Provide relay outputs on site with an appropriate
backup fuse!
These connections depend on the type of actuator
used, and should only be understood as guidelines.
Refer to actuator documentation.
S2
1 1
1
K8 K9 K10
contakt 2 (floating)
1
1 1
green yellow white
sensor
27