Emerson MCi210 User Manual page 23

When set to 2 the retain data will be automatically saved when the drive enters the under voltage
state, but only if no 24 V backup supply is detected.
Value Text
0 Disabled
1 UV
2 UV (no 24V)
S.01.021
Minimum
Default
Type
Display Format
Coding
Value Text
0 P-S-R
1 S-S-CR-RU
2 S-S
This parameter defines the user program behaviour when the module detects an Under Voltage
(UV) state.
The action of save resistant / persistent data depends on parameter S.01.020.
S.01.049
Minimum
Default
Type
Display Format
Coding
This parameter displays the code for the currently active run-time error.
MCi210 User Guide
Issue Number: 2
Retain data not automatically saved
Retain data automatically saved on under voltage
Retain data saved on under voltage AND no 24 V backup supply
detected
Under voltage state user program behaviour
0
1
8 Bit User Save
None
RW, Txt, BU
Pause-Save Data- Resume (User Program may trip due task
overrun)
Stop-Save-ColdReset-RUn
Stop-Save
Run time error code
0
0
16 Bit Volatile
None
RO, ND, PT, BU
Description
Maximum
Units
Update Rate
Decimal Places
Description
Maximum
Units
Update Rate
Decimal Places
2
Read when an Under
Voltage is detected and
S.01.020 is set to a non-
zero value
0
8448
Written every second
0
23