3�3�2�- List of terminals, DHB-424 models
Table 3:List of terminals on the DHB-424
Unit terminals
1 :10V +
, Voltage input
22:
GND
, for RS-485
2:
GND -
, Ground voltage and current input
23:
10V+
, Analogue voltage output
3:
20mA +
, Current input
24:
10V
, Analogue voltage output
4: 60mV +
, Thermocouple input
25:
20mA+
, Analogue current output
5: 60mV -
, Thermocouple input
26:
20mA
, Analogue current output
6,7,8:
Resistance-RTD probes
27: OC+,
Open collector output (NPN)
9:
AL1
, Alarm 1 relay output (NO)
28: OC,
Open collector output (NPN).
10:
AL1
, Alarm 1 relay output (Common)
29, 30 :
Not used
11:
AL2,
Alarm 2 relay output (NO)
31: AL3
, Alarm 3 relay output (Common)
12:
AL2
,
Alarm 2 relay output (Common)
32: AL3
, Alarm 3 relay output (NC)
13, 14:
Not used.
33: AL3
, Alarm 3 relay output (NO)
15, 16:
Auxiliary power supply.
34: AL4
, Alarm 4 relay output (Common)
20
:
B
, RS-485
35: AL4
, Alarm 4 relay output (NC)
21:
A
, RS-485
36: AL4
, Alarm 4 relay output (NO)
DHB-402 / DHB-424
1
8
29 30 31 32 33 34 35 36
9 10 1112131415 16
Figure 3: Terminals of the DHB-424
Note:
The input, output, power supply and RS-485 communications lines are galvanically separated
from each other.
9
Instruction Manual
DHB-402 DHB-424