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5-12 Input / Output
MN1943
5.3.5 Motor overtemperature input
Location
Connector X16 (bottom panel)
(Mating connector:
Phoenix COMBICON MSTBT 2,5/ 2-ST-5,08)
Name
Motor overtemperature switch in
Description
Dedicated motor overtemperature input.
Trip:
R
TH1-TH2
> 3.0 k
Ω
typ. (2.9 k
Ω
- 3.2 k
Ω
)
Not tripped: R
TH1-TH2
< 2.8 k
Ω
typ. (2.7 k
Ω
- 3.0 k
Ω
)
Sampling interval: Immediate
The motor overtemperature input is a dedicated input which may be directly connected to the
motor’s thermal switch. When the motor overheats and triggers the overtemperature input, the
MotiFlex
e
100 is normally disabled.
TH1
TH GND
Mint
TH 15V
MotiFlex
e
100
TH2
-
+
TLP281
+5V
1
2
Figure 52 - Motor overtemperature input circuit
5.3.5.1 Connecting motors with normally closed switch contacts
Some motors contain a thermal switch with normally closed contacts. When the motor overheats
the switch contacts open. For this type of motor, connect the switch contact outputs directly to
TH1 and TH2, as shown in Figure 52.
5.3.5.2 Connecting motors with temperature dependent resistive output
Some motors contain a thermistor based resistive output. As the motor temperature increases,
the resistance between the thermal output connections increases. For this type of motor, the
thermal output connections may be connected directly to TH1 and TH2, but care must be taken
to ensure that the resistance will be sufficient to trigger the MotiFlex
e
100’s input circuit.
To ensure triggering of the input circuit, the resistance between TH1 and TH2 must exceed
3.2 k
Ω
. If the motor’s thermistor does not achieve this resistance at the required trip temperature,
it may be necessary to include an additional fixed resistor in the circuit, as shown in Figure 53.
The total resistance must fall to less than 2.8 k
Ω
(typical) to re-enable the drive.
Summary of Contents for MotiFlex e100
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Page 60: ...www baldormotion com 3 44 Basic Installation MN1943 ...
Page 102: ...www baldormotion com 5 28 Input Output MN1943 ...
Page 136: ...www baldormotion com 7 8 Troubleshooting MN1943 ...
Page 172: ...www baldormotion com 8 36 Specifications MN1943 ...
Page 188: ...www baldormotion com B 6 Control System MN1943 ...
Page 204: ...www baldormotion com C 16 Mint Keyword Summary MN1943 ...
Page 216: ...Index MN1943 ...
Page 218: ...www baldormotion com Comments MN1943 Thank you for taking the time to help us ...
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