Configuration 
34  DC1010/1020/1030/1040 Product Manual  8/05 
4.4 Function Lock 
According to the status of the parameter “LCK” in ‘Configuration 1’ mode, ‘access to 
modes’ and ‘change of values’ can be prohibited. 
LCK=0000  MODE ACCESS-Access to ‘Operation’, Configuration1 & 2’ 
modes allowed (* Default) 
LCK=0100  MODE ACCESS-Access to ‘Operation’ & ‘Configuration 1’ 
mode allowed 
  VALUE CHANGE-Every value change in each mode allowed 
LCK=0110  MODE ACCESS-Access to ‘Operation’ & ‘Configuration 1’ 
mode allowed 
VALUE CHANGE -Value changes only in ‘Operation’ mode 
allowed 
LCK=0001  MODE ACCESS-Access to ‘Operation’ mode allowed 
VALUE CHANGE-Value change of SP (Set Point) allowed 
only 
LCK=1111  MODE ACCESS-Access to “Set Up” mode allowed 
LCK=0101  All access & value changes prohibited except the change of 
“LCK” status 
 
CAUTION 
Configuration should be performed only by personnel who are technically 
competent to do so. Local Regulations regarding electrical & safety must be 
observed.