NOTES
(about channel interfaces):
• Dispensing can be started only when high level (+12 to +30 V) is on pin 17. If the EMERGENCY OFF feature is
activated, the high level must also be on pin 15.
• Pins can be connected for tests without a PICO
Toµch
controller:
Pins 1 and 2:
Elimination of galvanic isolation
Pins 3, 4, 15, and 17:
Use of the internal potential and simulation of fault-free operation
Pin
Signal
Level
Comment
Inputs
1
DGND
0 V
Internal reference potential
2
GND_IO
0 V
Reference potential for inputs and outputs
4
24 V_IO
External supply of +24 V for the outputs
5
IN1
0 V / 24 V
To activate a block (reference GND_IO)
6
IN2
0 V / 24 V
To activate a block (reference GND_IO)
7
IN3
0 V / 24 V
To activate a block (reference GND_IO)
8
IN4
0 V / 24 V
To activate a block (reference GND_IO)
9
IN5
0 V / 24 V
To activate a block (reference GND_IO)
10
IN6
0 V / 24 V
To activate a block (reference GND_IO)
11
IN7
0 V / 24 V
To activate a block (reference GND_IO)
12
IN8
0 V / 24 V
To activate a block (reference GND_IO)
13
IN9
0 V / 24 V
To activate a block (reference GND_IO)
14
IN10
0 V / 24 V
To activate a block (reference GND_IO)
15
IN_STOP
0 V / 24 V
Emergency off: 24 V = unit ready 0 V = unit stopped
16*
(0 V / 24 V)
Internal use [IN_TEMP_PLC - bin. PICO
Toµch
controller input
“Temperature limit for dispensing material reached” (reference DGND)]
17*
(0 V / 24 V)
Internal use [IN_FAULT_PLC - bin. PICO
Toµch
controller input
Dispensing sequence fault” (reference DGND)]
18
IN_ANALOG
0–10 V
To control the pause time assigned between 0.12 ms and the delay time (reference DGND)
25
DGND
0 V
Internal reference potential
Outputs
3
24 V
24 V
Unit’s internal 24 V supply is threaded out of the unit to be used as potential for the binary inputs
/ outputs
19
OUT_READY
0 V / 24 V
max. 20 mA
Message indicating channel readiness (reference GND_IO); 24 V = IO
20
OUT_LINE_END
0 V / 24 V
max. 20 mA
Message indicating end of pulse output in the channel with 24 V / 100 ms (reference GND_IO)
21
OUT_TEMP_PLC
0 V / 24 V
max. 20 mA
Status output temperature, comparison of actual and setpoint temperature of valve 24 V / 100 ms
(Bezug GND_IO)
22
OUT_FAULT_PLC
0 V / 24 V
max. 20 mA
Status output faults. Following functions are checked:
- Valve connection (ENA)
- Drive voltage
- Heater (short-circuit / broken cable)
- Temperature sensor (short-circuit / broken cable)
- Over-temperature
- Level check reached
24 V = OK, 0 V = fault
23
OUT_ANALOG
0–5 / 10 V
max. 10 mA
Test point 0–5 / 10 V to specify the temperature to the PICO
Toµch
controller; adjustable with
software switch
24
PULS_OUT
0 V / 24 V
max. 80 mA
Output signal pulse-pause block (reference DGND) to PICO
Toµch
controller
*Pins 16 and 17: Do not connect externally.
Channels 1–4 D-Subconnector Pins (continued)
PICO Controller 2+2-XCH-V2
12
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