89750147 Crouzet USA, 89750147 Datasheet - Page 145

• Manufacturer Part Number: 89750147
• Description: STAINLESS SLEEVE-MILL TEMP PRB
• Manufacturer: Crouzet USA

Specifications of 89750147

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For more information www.crouzet.com
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Dimensions
FFP
Connections
FFP
Operation on 3-phase network I < 10 A AC
Principles
FFP
3 x 400 V~
Cos
B
L1 - L2 - L3 : Network to be monitored
E : Current read output
11 - 12 - 14 : Low threshold output relay
(R1)
21 - 22 - 24 : High threshold output relay
(R2)
B
C
D
E
3,5
ϕ
Internal shunt
3-phase network
Cos
Maximum
Minimum
R1
R2
1
3
4
23
ϕ
L1
L2
T2
1
E
100
L3
T1
77
12
R1
11
T1
14
M
22
5
R2
21
24
FFP
Operation on 3-phase network I > 10 A AC
3 x 400 V~
B
C
L1 - L2 - L3 : Network to be monitored
E : Current read output
11 - 12 - 14 : Low threshold output relay
(R1)
21 - 22 - 24 : High threshold output relay
(R2)
Operating principle
The FFP control relay is used for motor protection. The variation in the power factor (current /
voltage phase-shift or cosine ϕ) is related to the variation in the mechanical load of the motor. The
FFP control relay monitors the power factor, and therefore the mechanical load, and ensures that it
stays between two defined, adjustable limits.
A green LED indicates presence of the power supply. Two yellow LEDs display the state of the
output relays.
On power-up, both output relays are closed for the duration of the inhibit time (T2 adjustable
beween 0.5 and 20 seconds).
If the value of the power factor is between the two threshold values set, both relays are closed.
If the power factor exceeds the maximum threshold value set by the user, the high threshold relay
de-energises after a delay T1 (adjustable between 0.3 and 3 seconds). During this delay, the green
LED flashes (1 Hz). The relay closes again when the measured value drops below the threshold
less the hysteresis.
If the power factor drops below the minimum threshold value set by the user, the low threshold
relay de-energises after a delay (T1 adjustable between 0.3 and 3 seconds). During this delay, the
green LED flashes. The relay closes again when the measured value is (1 Hz) above the threshold
plus the hysteresis.
If the value of the high threshold is set as less than or equal to the low threshold value, the green
LED flashes quickly (2 Hz).
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Internal shunt
External current transformer
4,2
L1
L2
1
E
L3
12
2
R1
11
14
M
22
R2
21
24
FFP
Operation on single phase network 230 V AC
230 V
B
C
L1 - L2 - L3 : Network to be monitored
E : Current read output
11 - 12 - 14 : Low threshold output relay
(R1)
21 - 22 - 24 : High threshold output relay
(R2)
~
L1
Internal shunt
Charge
L2
E
1
L3
12
R1
3
11
14
22
R2
21
24
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