Operation Diagram; Dold Mk 9163N.12/110-Atex Thermistor Relay; Layout - ABB ACS880 Series User Manual

ATEX-certified motor thermal protection function with PTC thermistor relays (+L513+Q971) 23

Operation diagram

A1-A2
2830 Ω
1100 Ω
R [Ω]
19 Ω
12 Ω
Test / Reset
S1-T2
11-14 / 21-24
11-12 / 21-22
1 Tripping caused by overtemperature
2 Control supply voltage interrupted
3 Test (outputs are switched off)
4 Short-circuit in sensor circuit
5 Reset (resets fault)
• Manually with a front-face Test / Reset button
• Externally by a remote reset between terminal S1-T2
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DOLD MK 9163N.12/110-ATEX thermistor relay

Layout

A1 (+) 11 21
P1 P2 X1
R
Test /
Reset
22 24 X2
12 14 A2
1
1 2
A1-A2 Power supply
P1-P2 Measuring circuit with 1...6 sensors
X1-X2 Remote reset push button switch
11-12/14 Output contacts (1)
• 11: Common
• 12: Normally-closed
• 14: Normally-open
21-22/24 Output contacts (2)
• 21: Common
• 22: Normally-closed
• 24: Normally-open
Test / Reset Test and internal reset button
Upper LED Supply voltage present
(green)
"R" LED (red) Fault (overtemperature, broken wire, or short-circuit in the
sensor circuit)
5
5 3 5 4 5