Allen-Bradley E300 User Manual

428 Rockwell Automation Publication 193-UM015E-EN-P - October 2015
Chapter 6 Protective Trip and Warning Functions
Thermistor (PTC) Protection
The following E300 relay control modules can accept up to 6 thermistors (PTC)
temperature sensors wired in series to monitor the temperature of a motor’s
windings, rotor, and/or bearings.
• 193-EIOGP-42-24D
• 193-EIOGP-22-120
• 193-EIOGP-22-240
The
thermistor (PTC) based temperature sensors connect to the IT1 and IT2
term
inals of the E300 Control Module.
Thermistor (PTC) Trip
The E300 relay trips with a thermistor (PTC) trip indication if:
• No trip currently exists
• Resistance of the thermistor (PTC) sensors is greater than 3400Ω
If
the E300 relay trips on a thermistor (PTC), the following occurs:
• The TRIP/WARN LED flashes a red 3-long / 2-short blink pattern
• Bit 1 in
Control Trip Status (Parameter 7) sets to 1
• Bit 0 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Trip Relay opens
• Any relay outputs configured as a Control Relay opens
IMPORTANT
The Protection Fault State of Relay 0, Relay 1, Relay 2, Digital Module 1 Output
Relays, Digital Module 2 Output Relays, Digital Module 3 Output Relays, and
Digital Module 4 Output Relays are defined by the respective parameters:
• Output PT00 Protection Fault Action (Parameter 304)
• Output PT00 Protection Fault Value (Parameter 305)
• Output PT01 Protection Fault Action (Parameter 310)
• Output PT01 Protection Fault Value (Parameter 311)
• Output PT02 Protection Fault Action (Parameter 316)
• Output PT02 Protection Fault Value (Parameter 317)
• Output Digital Module 1 Protection Fault Action (Parameter 322)
• Output Digital Module 1 Protection Fault Value (Parameter 323)
• Output Digital Module 2 Protection Fault Action (Parameter 328)
• Output Digital Module 2 Protection Fault Value (Parameter 329)
• Output Digital Module 3 Protection Fault Action (Parameter 334)
• Output Digital Module 3 Protection Fault Value (Parameter 335)
• Output Digital Module 4 Protection Fault Action (Parameter 340)
• Output Digital Module 4 Protection Fault Value (Parameter 342)

Allen-Bradley E300 Specifications

General

Type	Electronic Overload Relay
Mounting	DIN Rail or Panel Mount
Protection Class	IP20
Voltage Range	24…690 V AC/DC
Communication Options	EtherNet/IP, DeviceNet
Protection	Overload, phase loss, ground fault
Operating Temperature	-20°C to 60°C