13-4
Chapter 13. Specifications
z
z
Time proportional output (TP)
Output method:
As generally for digital output
Outputs:
4 max. (settable with No. 4 to 7)
Minimum OFF time/ON time:
1 ms when time proportional cycle is less than 10 s
250 ms when time proportional cycle is 10 s or more
z
z
Control unit
Control action:
PID control reverse action (heating)
PID control direct action (cooling)
PID control heating and cooling
ON/OFF control reverse action (heating)
ON/OFF control direct action (cooling)
PID control
Proportional band (P): 0.1 to 3200 %
(5 digits max. within this range, 4 digits max. after the
decimal point)
Integral time (I):
0 to 32000 s
(5 digits max. within this range, 4 digits max. after the
decimal point)
Derivative time (D):
0 to 32000 s
(5 digits max. within this range, 4 digits max. after the
decimal point)
MV limit:
−10 to +110 %
(5 digits max. within this range, 4 digits max. after the
decimal point)
RE (Manual reset):
−10 to +110 %
(5 digits max. within this range, 4 digits max. after the
decimal point)
Number of PID groups: 8 (per loop)
PID group selection:
In the constant value operation (LSP. RSP) mode, the
PID group is set for each SP group or selected by the DI
function.
In the pattern operation mode, the PID group is set for
each segment or selected by the DI function.
Output variation limit: 0.0 to 10000 %/s (5 digits max. within this range, 4
digits max. after the decimal point). No limit when the
setting is 0.0.
Auto-tuning:
PID automatic setting using the limit cycle method
No. of settings for local SP (LSP):
8 (per loop)
