Figure 56. Measurement Module Led Overview; Table 10. Ptc Sensor Status - Eaton Power Xpert C445 User Manual

To monitor the status of this input, monitor the "PTC
Status" register for the following:

Table 10. PTC Sensor Status

Value Description
0 PTC ok – no fault
1 PTC overtemperature fault
2 PTC shorted fault
3 PTC open fault
PTC Connection: PTC wiring is connected to terminals
T1 & T2 in any polarity. This connector is designed to
2
accept 0.2 mm (24 AWG) to 2.5 mm
The use of twisted pair wiring is strongly recommended.
Shielded cable should be used when the cable lengths
exceed 100ft (30m) or as needed. It's recommended that
the cable shield be earth referenced near the motor
frame. Cable resistance as measured at the T1 & T2
terminals must not exceed 10 ohms to retain short
circuit monitoring along the entire length of the cable run
2. LEDs on the Measurement Module

Figure 56. Measurement Module LED Overview

Device and Motor Status
Color
-Red = Fault
-Yellow = Warning
-Green = No
Fault/Warning
2
(12 AWG) wire.
COM Status (Communications with Base Control Module)
Color/Flash
-Red/Slow (1s ON/1s OFF) = Connected device missing or
failed
-Green/Rapid (50ms ON/50ms OFF) = Device Discovery
-Green/Mostly ON (1.45s ON/50ms OFF) = Device
connected, data being exchanged
-Green/Mostly OFF (50ms ON/1.45s OFF) = Device
connected, no data being exchanged
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com
Chapter 3—Installation and Wiring
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