EPS RS 232 - AI Interface

Technical Specifications
AI I NTERFACE
Digital outputs
(CV, Standby, Error)
Output type: Open collector with pull-up resistor 10 k after + 5 V
I
sinkmax
: 50 mA
Digital inputs
(Ext. Control, Standby)
Input resistance: 47 k
Ω
Maximum input voltage: 50 V
High level: U
e
> 2 V
Low level: U
e
< 0.8 V
Analog outputs (X
mon
)
Output resistance: 100
Ω
Minimum permissible load resistance: 2 kΩ
Minimum load resistance for 0.1 % accuracy: 100 kΩ
Analog inputs (X
set
)
Input resistance: 1 M
Ω
Maximum permissible input voltage: 25 V
Reference voltage
Reference voltage U
ref
: 10 V
±
10 mV
Output resistance: < 10 Ω
Maximum output current: 10 mA (not short-circuit-proof)
5 V - Supply voltage
Output voltage: 5 V
±
300 mV
Maximum output current: 50 mA (not short-circuit-proof)
RS 232
Signal inputs (RxD, CTS)
Maximum input voltage:
±
25 V
Input resistance: 5 kΩ (Type)
Switching thresholds: U
H
< - 3 V, U
L
> + 3 V
Signal outputs (TxD,RTS)
Output voltage (at R
Last
> 3 k
Ω): min
±
5 V, Type
±
9 V, max
±
10 V
Output resistance: < 300 Ω
Short circuit current: Type ± 10 mA
RS 485
Maximum input voltage
± 5 V
Input resistance
> 12 kΩ
Output current
± 60 mA Max
High level
U
d
> 0.2 V
Low level
U
d
< - 0.2 V