89750147 Crouzet USA, 89750147 Datasheet - Page 305

• 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
Connections
Principles
Self-test :
When terminals A1-A2 are powered up, a test sequence is initiated : the output relays (terminals 13-14 and 21-22) are energised for 1.5 s then separate
for 1.5 s. If no fault is detected, the relays reattach.
This test checks :
- failure of the output contacts (terminals 13-14 and 21-22)
- breaking of one of the phases (L1, L2 or L3)
- the validity of the return loop (X1-X2)
- the failure of an internal component
Safety function :
When an electric motor rotates while no longer supplied with power, it behaves like a generator, supplying voltage (called remanent) to the terminals of its
windings. This voltage varies according to several parameters : speed of rotation, the motor characteristics, remanent magnetisation, inertia of the
mechanical assembly. The KSW2-RS measures this voltage and interprets it so that the doors and mobile guards can only be opened once the motor has
actually stopped.
Setting :
Both channels are set on the front of the KSW2-RS using two potentiometers. This mitigates the effects of any imbalance between the windings or
remanent voltages. Setting is within a range of 20 mV to 500 mV in order to adapt a threshold to a slow or zero speed, which is not dangerous for the
operator.
Control devices :
The KSW2-RS has one "N/O" (13-14) and one "N/C" (21-22) safety contact. One or more control devices may be wired up to the breaking capacity of the
safety contacts : 1500 VA
Extending the number of contacts :
The number of contacts of the KSW2-XS can be extended and the breaking capacity thus increased. To do this, use the KZE3-XS
Applications
Example
B
C
D
E
F
5
Opening
Opening
Start
Indicator lit if motor running
Emergency stop
1
NC
A1
A2
NC
Y11
Y22
2
Y21
Y12
PWR
OUT
NC
NC
13
14
13 21
14 22
PE
22
21
X2
0V
X1
NC
KSW2-RS
L2
L1
NC
NC
NC
L3
NC
NC
NC
L3
3
+ 24 V
Y2
Y1
Y11
KNA3-RS
A1
A2
Y1
13
Y12
X2
X1 Y2 S1 S2 41
14 24 34 42
23 33
Y11 14 24 34
c1
Y21Y22
Y1
A1-A2 Power supply
X1-X2 Return loop
L1-L2 Input channel 1 (motor winding)
L2-L3 Input channel 2 (motor winding)
13-14 "N/O" safety contacts
21-22 "N/C" safety contacts
13
C1
C2
23
41
33
42
c2
KSW2-RS
A1
A2
13
14
21 X1
X2
22
L1
L2 L3
4
L3 L3
L1
L2
L3
C1
C2
M
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