89750150 Crouzet USA, 89750150 Datasheet - Page 121
![Programmable Logic Controller](/photos/21/27/212738/3763480_sml.jpg)
89750150
Manufacturer Part Number
89750150
Description
Programmable Logic Controller
Manufacturer
Crouzet USA
Specifications of 89750150
Supply Voltage
24VDC
Operating Temperature Range
-10°C To +60°C
Height
85 mm
Length
85 mm
Primary Type
Temperature
Standards
IP30 Protection Casing
Temperature, Ambient
-10 to +60 °C
Temperature, Operating
-10 to +40 °C
Thickness
80 mm
Voltage, Rating
24 VDC ± 10%
For Use With
Millennium Series PLCs
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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4
4
Connections
EWS
EWS2
Principles
Timing diagrams EWS
Timing diagrams EWS2
4
L1
L2
L3
3
1
2
B
C
D
E
3
B
C
D
E
2
1
Phase L1
Phase L2
Phase L3
Relay
Phase L1
Phase L2
Phase L3
Relay
L1
L1
L2
L3
L2
L1
3
L3
L2
3
L3
12
R
12
11
14
R
11
22
14
R
21
24
EWS
3
MA
AR
B
C
D
E
and signalling
Operating principle
EWS/EWS2 relays monitor the correct sequencing of phases L1, L2 and L3 as well as the loss of
one of these phases.
When the phase sequence is correct, the output relay is energised, indicated by a yellow LED.
The relay de-energises (LED off) if one of the following faults occurs : Incorrect sequence of
phases at terminals L1, L2 and L3
Total loss of one phase or all three phases (loss of phase detection threshold < 50 VAC)
4
A1 11
12 14
Isolating switch
Contactor
Alarm
Auxiliary power supply for contactor coil
R
R S T
d1
A2
D1
2
R S
U V W
3
M
~
T
1
EWS
Monitoring of three-phase motor.
Manual re-engage after disappearance
of the fault.
B
C
D
E
and signalling
Isolating switch
Contactor
Alarm
Auxiliary power supply for contactor coil
121
4
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