Varian Turbo-V 250 series, Instruction Manual

Page: 66 / 79

TECHNICAL INFORMATION
59 87-900-852-01 (B)
The following parameters can be changed:
Bytes Meaning
1 Speed threshold
2-5 Run up time in seconds
(long coded in 4 bytes)
6 Deat time
(0 = NO 1 = YES)
7 Controller OFF when R2 OFF
(0 = NO I=YES)
8 Soft Start Mode
(0 = NO I=YES)
9 CRC
When the Request is "I" (Status readings), the Answer
will contain a string of 2 characters with the following
parameters:
Bytes Meaning
1
MSB LSB
- - X X X X X X
0 = STOP
1 = WAITING INTERLOCK
2 = STARTING
3 = NORMAL OPERATION
4, 5 = HIGH LOAD
6 = FAILURE
7 = APPROACHING LOW SPEED
R2 status 0 = OFF 1 = ON
R1 status 0 = OFF 1 = ON
2 CRC
When the
Request
is "J" (Numerical readings), the
Answer will contain a string of 5 characters with the
following parameters:
Bytes Meaning
1 Current (0-255 scaled)
2 Voltage (0-255 scaled)
3 Rotational speed KRPM
(0-255 scaled)
4 Pump temperature °C
(0-254 temperature reading, 255 = fail)
5 CRC
When the Request is "K" (Counters readings), the
Answer
will contain a string of 11 characters with the
following parameters:
Bytes Meaning
1-4 Cycle time
5-8 Pump life
9-10 Cycle number
11 CRC
On request a sample program in QBasic language is
available by Varian.