Over-temperature functional proof test, Short-circuit functional proof test – Rockwell Automation 20-750-ATEX PowerFlex 750-Series ATEX Option Module User Manual
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Rockwell Automation Publication 750-UM003B-EN-P - July 2013
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Verify Operation
Chapter 3
Functional Proof Testing for Systems with PTC Devices
Build a test fixture with switches, resistors, a spare terminal plug (see
Numbers for Spare Terminal Plugs on page 5
), and this schematic. Resistors must
be at least 1/8 W and 5% tolerance.
Over-temperature Functional Proof Test
Follow these steps to perform the PTC device over-temperature functional proof
test.
1. Close SW1.
2. Open SW2.
3. Run the drive.
4. Open SW1.
If the system is working correctly, the drive faults due to a motor
over-temperature event detection. See
5. If a safety option is present, check parameter 933 [Start Inhibits] and
verify that bit 2 [Enabled] and bit 7 [Safety] are set to high.
Short-circuit Functional Proof Test
Follow these steps to perform the PTC device short-circuit functional proof test.
1. Close SW1.
2. Open SW2.
3. Run the drive.
4. Close SW2.
If the system is working correctly, the drive faults due to a motor
over-temperature event detection.
5. If a safety option is present, check parameter 933 [Start Inhibits] and
verify that bit 2 [Enabled] and bit 7 [Safety] are set to high.
SW2
2 k
Ω 2
k
Ω
SW1