Mitsubishi Electric FR-F820-00046 Instruction Manual page 270

• When the PID control mode is selected for emergency drive, the PID action during emergency drive operation is as follows
depending on the PID control setting.
Item
Measured value input selection
Forward action / reverse action
selection
Proportional band
Integral time
Differential time
Applied to the frequency /
calculation only
Other PID-related settings
• While the "retry" (Pr.523 = "22[], 32[]") is selected in the PID control mode, if a retry occurs at an occurrence of E.CPU,
E.1 to E.3, or E.5 to E.7 during emergency drive operation, the operation is performed not under PID control but with the
fixed frequency.
Use Pr.1013 Emergency drive running speed after retry reset to set the fixed frequency.
NOTE
• Refer to page 401
 Operation of protective functions during emergency drive
• Operation of protective functions during emergency drive is as follows.
Protective Operation during
function emergency drive
E.OC1 Retry
E.OC2 Retry
E.OC3 Retry
E.OV1 Retry
E.OV2 Retry
E.OV3 Retry
E.THT Retry
E.THM Retry
E.FIN Retry
E.IPF The function is disabled.
E.UVT The function is disabled.
E.ILF The function is disabled.
E.OLT Retry
E.SOT Retry
E.LUP The function is disabled.
E.LDN The function is disabled.
E.BE *1
Retry
E.GF Retry
E.LF The function is disabled.
*1 While the switchover to the commercial power supply operation during emergency drive operation is enabled, when the same protective function
is activated twice consecutively, the retry is attempted up to twice.
• The fault output during emergency drive operation is as follows.
Pr.190 to Pr.196 setting
Signal
Positive
logic
ALM 99
ALM3 66
Set point / measured value
input setting
Held
Held
Held
Held
Held
Applied to the frequency
Held
for details of PID control.
Protective
function
E.OHT
E.PTC
E.OPT
E.OP1
E.OP2
E.OP3
E.16
E.17
E.18
E.19
E.20
E.PE
E.PUE
E.RET
E.PE2
E.CPU
E.CTE
E.P24
Negative
logic
Turns ON at the occurrence of a fault that causes the above-mentioned "retry" or "output
199
shutoff" during emergency drive operation.
Outputted when a fault occurs during emergency drive operation.
166 During emergency drive operation, if a fault that does not activate any protective function
occurs, the signal turns ON for 3 s and then turns OFF.
PID control action
Deviation input setting
Terminal 4 input
Held
Held
Held
Held
Applied to the frequency
Held
Operation during
emergency drive
Retry
Retry
The function is disabled.
The function is disabled.
The function is disabled.
The function is disabled.
The function is disabled.
The function is disabled.
The function is disabled.
The function is disabled.
The function is disabled.
Output shutoff
The function is disabled.
Output shutoff
Output shutoff
Retry
The function is disabled.
The function is disabled.
Description
Without PID control setting
Terminal 4 input
Reverse action (initial setting)
100% (initial value)
1 s (initial setting)
Not used (initial setting)
Applied to the frequency
Held
Protective Operation during
function emergency drive
E.CDO Retry
E.IOH Output shutoff
E.SER The function is disabled.
E.AIE The function is disabled.
E.USB The function is disabled.
E.SAF *1
Retry
E.PBT
*1
Retry
E.OS The function is disabled.
E.LCI The function is disabled.
E.PCH The function is disabled.
E.PID The function is disabled.
E.1 Retry
E.2 Retry
E.3 Retry
E.5 Retry
E.6
*1
Retry
E.7 *1
Retry
*1
E.13
Retry
5. PARAMETERS
5.7 (H) Protective function parameter
1
2
3
4
5
6
7
8
9
10
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