Stanford Research Systems LDC500, Руководство по эксплуатации и обслуживанию

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4.5 Commands 4 – 39
Front panel:
(P#
@+*>
d
.
TPGN -1.24 Example:
TEC Control Loop I Gain
TIGN(?)
{ f }
Set (query) the temperature control loop integral gain
{
to
f }
, in 1
/
s
.
See
TPGN
, above, for a general discussion of the control loop and
loop gain parameters. Note that in all cases, I
≥
0.
Front panel:
(P#
( G>#
.
TIGN 0.36
Example:
TEC Control Loop D Gain
TDGN(?)
{ f }
Set (query) the temperature control loop derivative gain
{
to
f }
, in
s
.
See
TPGN
, above, for a general discussion of the control loop and
loop gain parameters. Note that in all cases,
D
≥
0.
Front panel:
(P#
G)#
.
TDGN?
Example:
6.500000E-01
TEC Polarity Reverse Mode
TPOL(?)
{ z }
Set (query) the TEC current polarity reverse mode
{
to
z =
(
NO 0
, YES
1
)
}
.
When
TPOL
YES is set, the LDC500 will operate with reversed cur-
rent polarity to the TEC (Peltier) element. This changes the pin
assignments to the DB–15 TEC connector to:
pin description
1, 2 TEC
−
current terminal (*)
3, 4 TEC
+
current terminal (*)
5–15 unmodified from section 1.5.4
(*): assignment shown with
TPOL
YES
This command is for setups in which the TEC wiring is inadvertently
reversed. See section 2.2.3 (page 2 – 8 ) for further discussion.
TPOL
cannot be set while the TEC is on.
LDC500 Series Laser Diode Controllers