Super Systems 20Q User Manual

Page 71

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not provided if an output value has been selected at
configuration parameter “Añ.UL” [C.G04]).
The transfer from MANUAL to AUTO is bumpless or bumpless
balanceless (the bumpless feature is not provided if integral
action is excluded).

If transfer from AUTO to MANUAL is performed during the first
part of SMART algorithm (TUNE) when returning in AUTO the
device will be forced automatically in the second part of the
SMART algorithm (ADAPTIVE).

At power up the device starts as configured at “St.Fn” [C.G06]
configuration parameter.

NOTES

NOTES

NOTES

NOTES

NOTES:
1) When auto/manual control mode is selected by logic input, at

power up the instrument will start in accordance with the
logic input status.
If the logic input status requires the manual mode, the
instrument will verify the “St.Fn” [C.G06] parameter setting and
if “St.Fn” [C.G06] is equal to "Auto", "ñan" or “Cnd.A” the
power output will be set to zero otherwise the power output
will be set equal to the last value prior to power shut down.

2) If the instrument is configured for one control output, the

control output is a servo motor type (close or open loop) and
device starts up in manual mode, the following action may

occur:
2.A) The valve remains in the same position if:

“St.Fn” [C.G06] = “ñan” or
“St.Fn” [C.G06] = “Cnd.A” or
“St.Fn” [C.G06] = “Cnd.b” and “Añ.UL” [C.G04] = “buñ.”

2.B) The valve will be moved to the value set in “Añ.UL” if

“St.Fn” [C.G06] = “Cnd.b” and “Añ.UL” [C.G04] is different
from “buñ.”

mkc-ssi.pmd

06/07/2004, 12.19

67

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