Wavelength Electronics WTC3293, Техническое описание и руководство по эксплуатации

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WTC3243 TEMPERATURE CONTROLLER
PIN DESCRIPTIONS — WTC3293 EVALUATION BOARD
Table 2. WTC3293 Evaluation Board Pin Descriptions
SILKSCREEN
LABEL
NAME FUNCTION
P1 Power
Optional Supply Input. 2.5 mm jack power connection to V
DD
.
NOTE: Use either Input Supply (P1) or V
DD
on TB1 but not both .
ENABLE
ON/OFF
Output Current ON/OFF
Output Current Enable/ Disable Switch. Turns output current on and off.
NOTE:
Keep
this OFF until the evaluation board is set up entirely. LED lights when ON.
P GAIN Trimpot Proportional Gain
I TERM Trimpot Integrator Time Constant
SET T 12-turn Trimpot Setpoint for temperature
LIM A 12-turn Trimpot Current Limit A Adjustment
LIM B 12-turn Trimpot Current Limit B Adjustment
TP1 Test Point 1
Used when eliminating trimpots in setpoint and limit circuits
TP2 Test Point 2
TP3 Test Point 3
TP4 Test Point 4
TP5 Test Point 5 P GAIN (measure resistance across TP5 and TP6)
TP6 Test Point 6 Reference point for P GAIN and I TERM
TP7 Test Point 7 I TERM (measure resistance across TP6 and TP7)
Terminal Block 1 (TB1), Input Power Terminal Block
V
DD
Voltage Supply
Power supply input for control electronics. Directly connected to WTC3243 V
DD
(Pin 1).
NOTE:
Use either Input Supply (P1) or V
DD
on TB1 but not both
.
V
S
Voltage Supply Power supply input for output stage. Directly connected to WTC3243 V
S
(Pin 14)
PGND Power Ground Directly connected to WTC3243 GND (Pin13)
Terminal Block 2 (TB2), Auxiliary Terminal Block
FAN + Fan Positive Red wire connection
FAN - Fan Ground Black wire connection
2.5 V +2.5 V Reference Reference voltage for use with external setpoint circuit
REN Remote Enable
0 V = ENABLED
Floating or >3 V = DISABLED
The onboard switch overrides the external signal.
HSET High Voltage Setpoint Remote setpoint voltage is not subject to the DAQ Failsafe Protection Circuit
COM Common Ground Low noise ground reference for control signals
Terminal Block 3 (TB3), Monitors Terminal Block
ACTT
Actual Temperature
(Sensor Voltage)
The actual temperature monitor voltage matches the voltage drop across the
temperature sensor. Transfer function is 1 V / V.
SETT Setpoint Voltage Monitor
The setpoint temperature monitor voltage matches the setpoint voltage at Pin 2 on the
WTC3243. Transfer function 1 V / V.
RSET Remote setpoint Remote setpoint voltage is subject to DAQ Failsafe Protection Circuit
LIMA Limit A Voltage at Pin 3 on the WTC3243
LIMB Limit B Voltage at Pin 4 on the WTC3243
COM Common Ground Low noise ground reference for monitor signals
Terminal Block 4 (TB4), Output Terminal Block
OUTB Output B Direct connection to WTC3243 OUTB (Pin 12)
SEN+ Sensor positive Direct connection to WTC3243 S+ (Pin 9)
SEN- Sensor negative Direct connection to WTC3243 GND (Pin 13)
OUTA Output A Direct connection to WTC3243 OUTA (Pin 11)