Mitsubishi Electric 800 Series Instruction Manual page 156

 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 (Pr.128, Pr.753) Held
Forward action / reverse action selection
(Pr.128, Pr.753)
Proportional band (Pr.129, Pr.756)
Integral time (Pr.130, Pr.757)
Differential time (Pr.134, Pr.758)
Applied to the frequency / calculation only
(Pr.128, Pr.753)
Dancer control
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.
 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.
*1
E.BE
Retry
E.GF Retry
E.LF The function is disabled.
E.OHT Retry
E.PTC Retry
E.OPT The function is disabled.
E.OP1 The function is disabled.
E.OP2 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.
*2 In normal operation (Pr.523 = "200 or 300"), the start signal is turned OFF at the same time the retry function resets the protective
function. Input the start signal again to resume the operation.
Set point / measured
value input setting
Held
Held
Held
Held
Applied to the frequency
Invalid
Held
Protective Operation during
function emergency drive
E.OP3 The function is disabled.
E.16 The function is disabled.
E.17 The function is disabled.
E.18 The function is disabled.
E.19 The function is disabled.
E.20 The function is disabled.
E.PE Output shutoff
E.PUE The function is disabled.
E.RET Output shutoff
E.PE2 Output shutoff
E.CPU Retry
E.CTE The function is disabled.
E.P24 The function is disabled.
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.
*1
E.SAF
Retry
*1
E.PBT
Retry
E.OS The function is disabled.
E.OSD The function is disabled.
E.ECT The function is disabled.
E.OD The function is disabled.
7
PID control action
Deviation input setting
Terminal 4 input
Held
Held
Held
Held
Applied to the frequency
Invalid
Held
Protective
function
E.ECA The function is disabled.
E.MB1 The function is disabled.
E.MB2 The function is disabled.
E.MB3 The function is disabled.
E.MB4 The function is disabled.
E.MB5 The function is disabled.
E.MB6 The function is disabled.
E.MB7 The function is disabled.
E.EP The function is disabled.
E.MP The function is disabled.
E.EF The function is disabled.
E.IAH 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
Retry
E.7
Retry
E.11 The function is disabled.
E.13 Output shutoff
Without PID control
setting
Terminal 4 input
Reverse action
100% (initial value)
1 s (initial setting)
Not used (initial setting)
Applied to the frequency
Invalid
Held
Operation during
emergency drive
*2
*2
*2
*2
*1*2
*1*2
BCN-C22005-959