Pid Control During Emergency Drive Operation; Operation Of Protective Functions During Emergency Drive - Mitsubishi Electric FR-F800 Instruction Manual

PID control during emergency drive operation
• During emergency drive operation in the PID control mode, the operation is performed under PID control using the
Pr.524 setting as a set point. Input the measured values in the method set in Pr.128 or Pr.753.
• 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, 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
• For details of the PID control, refer to
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 Disabled
E.UVT Disabled
E.ILF Disabled
E.OLT Retry
E.SOT Retry
E.LUP Disabled
E.LDN Disabled
E.BE Retry

E.GF Retry
E.LF Disabled

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
ALM 99
ALM3 66
Set point / measured value
input setting
Held
Held
Held
Held
Held
Applied to the frequency
Held
page 378.
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
E.CDO
Positive Negative
logic logic
199
166
(H) Protective function parameter
PID control action
Deviation input setting
Terminal 4 input
Held
Held
Held
Held
Applied to the frequency
Held
Operation during
emergency drive
Retry
Retry
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Output shutoff
Disabled
Output shutoff
Output shutoff
Retry
Disabled
Disabled
Retry
Description
Turns ON at the occurrence of a fault that causes the above-mentioned
"retry" or "output shutoff" during emergency drive operation.
Output when a fault occurs during emergency drive operation.
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.
Without PID control setting
Terminal 4 input
Reverse action (initial setting)
100% (initial setting)
1 s (initial setting)
Not used (initial setting)
Applied to the frequency
Held
Protective Operation during
function emergency drive
E.IOH Output shutoff
E.SER Disabled
E.AIE Disabled
E.USB Disabled
E.SAF Retry

E.PBT Retry

E.OS Disabled
E.LCI Disabled
E.PCH Disabled
E.PID Disabled
E.1 Retry
E.2 Retry
E.3 Retry
E.5 Retry
E.6 Retry

E.7 Retry

E.13 Retry

PARAMETERS
5
GROUP
H
243