Varian Turbo-V 300 75 Vdc, Instruction Manual

Page: 9 / 17

TECHNICAL INFORMATION
4 87-900-939-01 (D)
INSTALLATION
Inspect the controller for any shipping damage.
Should the controller be connected to a host computer
via the-RS-232 interface, a suitable cable must be
prepared.
In the following paragraphs are detailed the input/output
signals.
NOTE
The box installed into the customer system must be
positioned so that cold air (forced or natural convection)
can flow around.
Pump Connector
The signals of J3 connector are the following:
•
Pin C 80 Vac 3-phase output to pump motor stator
(phase T).
•
Pin D 80 Vac 3-phase output to. pump motor
stator (phase S).
•
Pin B 80 Vac 3-phase output to pump motor stator
(phase R).
•
Pins A/F Pump temperature sensor.
•
Pin E Ground
I/O Specifications
START/STOP:
- START command
- STOP command
Low <0.8 Vdc
High 4 to 15 Vdc
Analog output:
- Output impedence
- Minimum load:
0 to 10 Vdc (proportional to
speed)
*
(0 to 10 V
≡
0 to 100% speed)
0.1
Ω
2 K
Ω
(5 mA)
Normal operation signal:
- Open Collector Speed <80%: OFF (pull-up
to 15 Vdc)
Speed >80%: ON (<0.8 Vdc)
Current rating 60 mA max
Low speed command: Low (<0.8 Vdc)
9-pin “D” Type Connector Pin Assignement
Pin
number Description
1 Start/Stop input: close to pin 5/6 to start the
pump
2 Pump in Normal output: closed to pin 5/6 when
pump speed is higher than 80% of full speed
3 Earth (Ground)
4 Analog output proportional to pump speed
(positive)
5-6 Electrical supply (0 V)
9 Low speed input: close to pin 5/6 to select Low
Speed mode
7-8 Electrical supply (75 V) (positive)
*
Minimum speed reading in STOP condition =
100 Hz (6 KRPM)