Autonics TK4L - Page 76

6 Parameter Settings and Functions
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6.3.4.2 Auto-tuning Mode Settings [PAR3 → AT.T]
Auto-tuning is available in Tun1 MODE (SV) or Tun2 MODE (70% of SV), depending on
the baseline value used.
Setting Description
TUN1
Tun1 Mode
Auto-tunes and derives a PID time constant based on SV (Setting Value).
TUN2
Tun2 Mode
Auto-tunes and derives a PID time constant based on 70% of SV (Setting
Value).
Setting
Group
Parameter Setting Range
Factory
Default
Unit
PAR3
AT.T
TUN1
/
TUN2
TUN1
-
 In cooling control mode, TUN2 Mode calculates 70% based at 0°.
 When SV=
-100
,
TUN2
is performed at
-70
°.