Firmware Manual

Appendix A—Description of Parameters
166 PowerXL DG1 Series Adjustable Frequency Drives MN040004EN—March 2014 www.eaton.com
P9.18 320 Underload Time Limit 1, 2, 3, 4 RW
This time can be set between 2.0s and 600.0s.
This is the maximum time allowed for an underload state to exist. An internal up/
down counter counts the accumulated underload time. If the underload counter
value goes above this limit, the protection will cause a trip according to P9.15. If the
drive is stopped, the underload counter is reset to zero. See Figure 63.
Figure 63. Underload Time Counter Function
P9.19 333 Thermistor Fault Response 1, 2, 3, 4 RW
Setting the parameter to 0 will deactivate the protection. If used with motor
thermistors in the winding of the motor, P9.8 Motor Thermal Protection can
be deactivated.
0 No response
1 Warning
2 Fault, stop mode after fault according to P7.10
3 Fault, stop mode after fault always by coasting
P9.20 750 Line Start Lockout 1, 2, 3, 4 RW
Determines the response of frequency converter starting motor on power cycle
if I/O run command is still active.
0 Response I/O command when power is on. No response to I/O commands
when control source is changed to I/O location
1 Do not respond I/O command when power is on. No response to I/O
commands when control source is changed to I/O location
2 Response I/O command when power is on. Respond to I/O command when
control source is changed to I/O location
3 Do not respond I/O command when power is on. Respond to I/O command
when control sources are changed to I/O location
P9.21 334 Fieldbus Fault Response 1, 2, 3, 4 RW
This sets the response mode for the fieldbus fault when a fieldbus board is used and
communication is lost between the PLC and communication card. See P9.19.
P9.22 335 OPTCard Fault Response 1, 2, 3, 4 RW
This sets the response mode for a board slot fault caused by a missing or failed
board not communicating to the Central Processor. See P9.19.
P9.23 1564 Unit Under Temp Prot 1, 2, 3, 4 RW
This protection sets the response to a low frequency converter temperature. See
P9.19.
Code Modbus ID Parameter Application
RO/RW
Underload
Time Counter
Trip Area
Underload
No Underload
Time
Trip/ Warning
P0.15