Connecting the Smartline Pump 1000 to other Instruments
33
Connecting the EVENTS socket
You can control the states of individual contacts of the EVENTS socket
using SOP 9 “Setting the Control Signals (Events” on page 19.
Specifications of the Event signals
TTL (Transistor Transistor Logic) connections are to be connected only to
TTL compatible outputs (max. consumption: 40 mA, U
CEmax
= 24 V)
directed to GROUND.
Table 3
Technical specifications of the Event signals
State Control
outputs
OC
(Open Collector)-
connections
Relay connections
0
Low (< 500 mV) Inactive
Contact open
1
High (> 2 V)
Active
Contact closed
2
Pulse,
> 2 V for 500 ms
Pulse,
active for 500 ms
Pulse: Contact closed
for 500 ms
Connecting the Analog/Error/Start Socket
The Analog/Error/Start terminal strip serves to send/receive either start or
error signals from/to other instruments. An additional voltage signal is
available for monitoring the system pressure or for controlling a slave
pump (see item ANALOG OUTPUT in “Using the SETUP Menu” on page
13). The ANALOG IN enables the external analog control of the pump.
Fig. 27
The REMOTE terminal strip
Table 4
Technical specifications and description of Analog/Error/Start signal
connections
Signal
Description
Start connections
START IN
Activated by a 0 Volt or low signal or a short
circuit; I
IN
= 10 mA
START OUT
OC (open collector) output is active for 500 ms
Error- connections
ERROR IN
When receiving a 0 V (error) signal, the
message
Error signal was detected
is
displayed and the pump is stopped; I
IN
= 10 mA
ERROR OUT
OC output is active until the error condition is
removed
Analog connections
ANALOG OUT
Analog voltage signal gives either measured
system pressure (1 V per 40 MPa; Offset for 0
MPa is some mV) or a control voltage for slave
pump B. Adjustable voltage range between 1,
2, 5, and 10V maximum output.
ANALOG IN
Analog input signal controls flow rate; default 1
V per 1 ml/min for 10 ml head and 5 ml/min for