TE Technology TC-720 - Manual (Page 83)

43. FAN PWM FREQUENCY
Write Command: 3c
Read Command: 70
Interpret: PWM frequency used for fan speed control (consult fan manufacturer for suitable frequency).
0 == 43,200 Hz
1 == 5,400 Hz
2 == 675 Hz
3 == 169 Hz
4 == 42 Hz
44. SET MODE
Write Command: 3d
Read Command: 71
Interpret: 0 == NORMAL SET
1 == RAMP/SOAK SET MODE
2 == PROPORTIONAL+DEAD BAND
45. RAMP/SOAK SEQUENCE START/STOP
Write Command: 08
Read Command: NA
Interpret: Send 1 to start sequence
Send 0 to abort sequence
46. RAMP/SOAK status
Write Command: NA
Read Command: 09
Interpret: Convert the returned hexadecimal value to binary and interpret the bits as follows:
All zeros means no sequence running.
Bit 0 == means sequence running.
Bit 1 == means SOAK stage.
Bit 2 == means RAMP stage.
For example, if a sequence is running during the ramp stage, the read command would return
0005
16
. This converts to 101
2
where Bit 0 (the rightmost bit) is set and Bit 2 is set.
47. SEQUENCE POINTER
Write Command: NA
Read Command: 0a
Interpret: Ramp/Soak sequence stage value 0 through 7
48. STAGE SOAK TEMPERATURES
Write Commands: a0 through a7
Read Commands: a8 through af
Interpret: To send a soak temperature, multiply the decimal value by 100
10
and convert to hexadecimal. To read
the soak temperature, convert the returned hexadecimal value to decimal, and then divide by 100
10
.
49. STAGE RAMP TIME COUNTS
Write Commands: b0 through b7
Read Commands: b8 through bf
Interpret: Ramp Time counts
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