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Appendix A—Description of parameters
VARIABLE SPEED DRIVE SERIES III LIT-12012999—June 2018 www.johnsoncontrols.com
Code Modbus ID Parameter Application RO/RW
P6.2.9 955 RTC Fault 1,2,3 RW
This parameter sets the device reaction after a “Realtime Clock Fault” condition has occurred. This
condition could be possible device dependent.
0 = No response
1 = Warning
2 = Fault, stop mode after fault according to standard stop mode
3 = Fault, stop mode after fault always by coasting
P6.2.10 1256 Replace Battery Fault Response 1,2,3 RW
This parameter sets the device reaction after a “Replace Battery” condition has occurred, when the
battery falls below 2V level. This condition could be possible device dependent.
0 = No response
1 = Warning
2 = Fault, stop mode after fault according to standard stop mode
3 = Fault, stop mode after fault always by coasting
P6.2.11 1257 Replace Fan Fault Response 1,2,3 RW
This parameter sets the device reaction after a “Replace Device Fan” condition has occurred, when the
fan run time counter expires. This condition could be possible device dependent.
0 = No response
1 = Warning
2 = Fault, stop mode after fault according to standard stop mode
3 = Fault, stop mode after fault always by coasting
P6.2.12 2126 Cold Weather Mode 1,2,3 RW
This parameter allows for enabling a cold weather function that allows the frequency converter’s under
temp limit to drop from –10°C to –30°C.drive. This then enables a warmup feature when the frequency
converter is between –30°C and –20°C. The motor, when given a run command, will turn on for the Cold
Weather Timeout (See Par ID 2128) and output the Cold Weather Voltage (See Par ID 2127) at 0.5 Hz to
allow the motor to warm up. If it does not warm up above –20°C, after that the time frequency converter
will fault on Under temp fault. If the frequency converter does go above –20°C, output will begin to
follow reference.
0 = Disable
1 = Enable
P6.2.13 2127 Cold Weather Volt. Level 1,2,3 RW
This parameter allows for setting the % of the motor voltage that is output to the motor when in the
cold weather warmup period.
P6.2.14 2128 Cold Weather Time Out 1,2,3 RW
This parameter allows for selecting the time limit that the frequency converter will run in the warm
up period.
P6.2.15 2129 Cold Weather Password 1,2,3 RW
This password allows access to override the under temperature fault protection, this parameter is seen
by pressing the left and right soft keys on the keypad. Password should be set to 32866, this value gets
reset on cycle of power.
P6.2.16 2130 Under Temp Fault Override 1,2,3 RW
With the password set to the correct value this parameter is enabled and will give the ability to override
the under temp fault. This function gets reset when power is cycled.
P6.2.17 2427 STO Fault Response 1,2,3 RW
This parameter is used to set the reaction of the device after a “Safe Torque Off” condition is seen. This
condition could be possible device dependent.
No Action = Drive will stop no indication shown, n reset required, have to cycle start command.
Fault = drive will indicate fault/Require Reset to start again,
Warning = drive indicate warning/if STO clears drive will run without Reset.
P6.3.1 334 Fieldbus Fault Response 1,2,3 RW
This parameter used to set the reaction after a “Network COM Fault” condition occurs. This failure could
be device dependent.
0 = No response
1 = Warning
2 = Fault, stop mode after fault according to standard stop mode
3 = Fault, stop mode after fault always by coasting
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