Input Control
ON
Torque Control
OFF Speed Control
03-0X =45: Negative torque command
When input is active reverses torque reference command. Refer to Figure 4.4.128 for more details.
03-0X =46: Zero-servo Command; Start: zero-servo operation.
When input is active starts zero-servo operation. Refer to Figure 4.4.129 for more details.
03-0X =47: Fire mode
When input is active disables all inverter warning and hardware protections. This function is commonly used in
commercial applications where the inverter controls an exhaust fan and needs run to destruction in case of a re.
03-0X =48: KEB acceleration
When input is active enables KEB (Kinetic Energy Braking) during acceleration. Refer to the parameter descrip-
tion of 11-47 and 11-48. Note: To enable set parameter 11-47 to a value greater than 0.
03-0X =49: Parameters write-in allowed
When input is active allows parameter to be changed.
Note: When none of the digital input terminals are set to function 49, parameter write-in protection is controlled by parame-
ter 13-06.
Input Parameter Save
ON Parameters Write Enabled
OFF Parameters Write Protected
03-0X =50: Unattended Start Protection (USP)
When input is active prevents inverter from starting automatically when a run command is present at time of
power-up. Please refer to Figure 4.4.24a for more details.
Figure4.4.24aUnattendedStartProtection
Power Supply
Run Command
Fault (Alarm)
Fault Reset
UPS Command
Output Frequency
t
t
t
t
t
t
UPS active on power-up.
UPS warning clears when
run command is removed.
UPS not active, when
fault is reset the inverter
restarts automatically.
When run command is off at
power-up and UPS is active
the inverter starts normally.
03-0X =51: Mode switching between speed and position control.
Refer to the parameter description of 21-09 ~ 21-41
Input Control
ON Position Control
OFF Speed Control
03-0X =52: Multi Position Reference Enable
Refer to the parameter description of 21-09~21-41
VDI100 • Instruction manual 153