KSB PumpDrive - 7.2 Application functions; 7.2.1 PumpDrive protective functions; 7.2.1.1 Activate;deactivate thermal motor protection

GND
DI6 DI5 D
I
4
DI3 DI
2
DI1
+24V
A
G
N
D
A
N-
O
U
T
GND
DI6 DI
5
D
I4
D
I3
DI2 DI1
+24V
AGND
AN-OUT
GND
DI6 DI5 DI4 DI3 DI2 D
I
1
+24V
A
G
N
D
AN-OUT
109876543211098765432110987654321
1918171615141312112019181716151413121120191817161514131211 20
S B1_GND
S
B1+
S B1- S B1_GND S B1+ S B1- S B1Z
-
S
B
1Z+
SlaveMaster
1
AGND
AIN1
GND
AIN2 +24V
NO2 C
O
M2
NO1
COM1
10931 2 4 5 6 7 8
AGND AIN1
GND
A
IN
2
+24V
NO2
C
O
M
2
NO1
COM
1
10931 2 4 5 6 7 8
AGND A
I
N
1
GND
A
I
N2
+24V
NO2
COM
2
NO1
COM1
10931 2 4 5 6 7 8
Sensor
4...20mA
Slave
S B1_GND S B1+ S B1- S B1_GND S B1+ S
B
1
-
S
B
1Z
-
S
B1
Z
+
S B1_GND S B1+
S
B1
-
S B1_GND S
B
1+
S
B
1-
S B1Z- S
B1
Z
+
P4 P4
P4
P4 P4 P4
P7 P7 P7
Fig. 41: Connection example for master/AUX master operation: a) 3-wire sensor, b) 2-
wire sensor
7.2 Application functions
7.2.1 PumpDrive protective functions
If the Advanced control panel fails, the Advanced protective functions can no longer
be ensured. The Advanced protective functions are identified as such in the
following.
7.2.1.1 Activate/deactivate thermal motor protection
Thermal overload results in immediate tripping and an alert message is output.
Restarting will only be possible after the motor has cooled down sufficiently (check
Stop & Trip parameter).
The stop threshold value is set at the factory for monitoring with a PTC sensor or a
thermal circuit breaker. If other thermocouples are used, the value has to be set by
KSB Service.
Table 68: Parameter for thermal motor protection
Parameter Description Possible settings Factory setting
3-3-5-1 Thermal Protect
Activate/deactivate thermal motor protection
No Protection
PTC Protection
PTC Protection
Master/slave/slave
operation
Stop threshold value
7 Commissioning/shutdown
72 of 162
PumpDrive