ECP2050
42 / 64
Diagnostics of actual IO INTERFACE status can be done in
Menu/Diagnostics/Interface
. For
digital inputs value OPEN (H) means opened input, high level and CLOSE (L) means closed input,
low level. For digital output is displayed OFF (for open switch) and ON (for closed switch).
Analog input, digital input 1, 2 and digital output switch can always be read through remote
control (RS232/ETHERNET/USB).
6.4.3.1. Analog Input
ANALOG INPUT can be used as follows:
S
ETTING
M
ODES OF
A
NALOG
I
NPUT
Setting
Description
OFF
Analog input does not have any assigned function. Default setting.
FLOW CONTROL
Analog input is used for setting flow rate. 0 V = 0 ml/min and
10 V = 50 ml/min. Flow rate cannot be set using keyboard or through
remote control (RS232/ETHERNET). Bottom PUMP, command pump
through remote control (RS232/ETHERNET) or SAFETY STOP can control
pumping.
6.4.3.2. Digital Input 1
DIGITAL INPUT can be used as follows:
S
ETTING
A
CTIONS ON
D
IGITAL
I
NPUTS
Setting
Description
OFF
Digital input does not have any assigned action. Default setting.
SAFETY STOP
When switching input from level H to level L, pumping is stopped and
operating error is evoked. This error must be cancelled using the
PUMP
button or with a command pump through remote control
(RS232/ETHERNET) or using signal PUMP on any other digital input.
PUMP
When switching input from level H to level L, pumping is started (motor is
excited even when flow rate is set on 0 ml/min). When switching input from
level L to level H, pumping is stopped. Bottom PUMP, command pump
through remote control (RS232/ETHERNET) or SAFETY STOP can control
pumping.
PROGRAM
START
External start of program. When switching from level H to level L, program
is started (e.g. injecting valve type VICI from position LOAD to INJECT).