Edwards nRVi, Instruction Manual

Page: 30 / 100

Pin number Signal
Polarity
Use
8 0 V Control Reference - 0 V reference for ALL control and status
signals listed within this table.
9 Analogue Speed – Control
Input
- 0-10 V Analogue Input
0 V = 0% Speed;
+ 10 V = 100% Speed
10 Chassis / Screen - Screen
11 + 10 V Analogue
Reference – Control
Output Positive + 10 V analogue voltage reference output:
5 mA; uni-polar output, diode protected.
This signal line is not suitable for
connection to cables longer than 30 m.
12 Chassis / Screen - Screen
13 Not Connected - Unused control pin.
14 REMOTE – Control Input - Connect to Pin 2 (0 V) to enable remote
control via Parallel or Serial control modes.
15 NORMAL – Status output - Logic LOW when the pump rotational
speed is at normal speed or above.
3.9 Valve connector socket
The pump has a 4-way valve connector socket on the front of the motor controller.
The connector is intended to control a valve. The connector is shown in
Figure: Valve
connector showing pin numbers on page 27 , with the polarity of the pins marked when
the valve is energised.
The valve connector output is regulated to 24 V d.c. to control the valve and is protected
against overload and short circuits. If the valve load current exceeds the value in Table:
Valve connector technical data on page 26 , the output will shut down to protect the
motor controller.
Table 17
Valve connector technical data
Description Data
Connector plug Phoenix part number SACC-DSI-M 8FS-4CON-M12/0.5
Voltage output 24 V d.c. -25%, +10% (18 V d.c. to 26.4 V d.c.)
Current output 500 mA
Page 26
A65901880_D - Technical data