Commissioning | 6
Instruction Manual COBRA NC 1000 B WCV_EN_en
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• Watch the fan wheel of the motor and determine the direction of rotation just before
the fan wheel stops.
If the rotation of the motor must be changed:
• Switch any two of the motor phase wires.
5.7 Electrical Connection of the Monitoring Devices
NOTE
In order to prevent potential nuisance alarms, Busch recommends that the control sys-
tem is configured with a time delay of at least 20 seconds.
5.7.1 Wiring Diagram Resistance Thermometer
Part no.:
0651 552 252
Connector:
M12x1, 4-pin
U = 7.5 … 30 VDC
4 ... 20 mA
►
-50 ... 150 °C
Trip signal:
T
trip
: 70 °C
1
2
4
3
3
1
+
-
1 = Brown ; 3 = Blue
5.7.2 Wiring Diagram Level Switch
Part no.:
0652 569 236
Connector:
M12x1, 4-pin
U = 10 … 30 VDC (DC-PNP)
I
max
= 200 mA
Contact:
Normally closed
1
2
4
3
(+)
1
3
4
(-)
0.5 A
1 = Brown ; 3 = Blue ; 4 = Black
Switch point:
L
trip
►
pin 1 + 4
►
low level “stop the machine”
6
Commissioning
NOTICE
The machine can be shipped without oil.
Operation without oil will ruin the machine in short time!
• Prior to commissioning, the machine must be filled with oil, see
.
NOTICE
The machine can be shipped without cooling liquid.
Operation without cooling liquid will ruin the machine in short time!
• Prior to commissioning, the machine must be filled with cooling liquid, see
.
Содержание COBRA NC 1000 B
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