II F 2-10
Description of I/O signals SDCS-CON-2
Mechanical system
installed in the basic unit
Terminals
Screw-type terminals for finely stranded wires up to max. 2.5 mm
2
cross-sectional area
Functionality
ð
1 tacho input
Resolution: 12 bit + sign; differential input; common-mode range ±20 V
3 ranges from 8...30...90...270 V- with n
max
ð
4 analogue inputs
Range -10...0...+10 V, 4...20 mA, 0...20 mA
All as differential inputs; R
E
= 200 k
Ω;
time constant of smoothing
capacitor
≤
2 ms
Input 1: Resolution: 12 bit + sign.; common-mode range ±20 V
Inputs 2, 3, 4: Resolution: 11 bit + sign; common-mode range ±40 V
ï
2 outputs
+10 V, -10 V, I
A
≤
5 mA each; sustained-short-circuit-proof
for reference potentiometer voltage supply
ï
1 analogue output
bipolar current feedback - from the power section; decoupled
IdN
⇒ ±
3 V; I
A
≤
5 mA, short-circuit-proof
ï
2 analogue outputs
Range -10...0...+10 V; I
A
≤
5 mA
Output signal and scaling can be selected by means of the software
Resolution: 11 bit + sign
ð
1 pulse generator input
Voltage supply for 5 V/12 V/24 V pulse generators (sustained-short-
circuit-proof)
Output current with
5 V: I
A
≤
0.25 A
12 V: I
A
≤
0.2 A
24 V: I
A
≤
0.2 A
Input range:
12 V/24 V: asymmetrical and differential
5 V: differential
Pulse generator as 13 mA current source: differential
Line termination (impedance 120
Ω
), if selected
max. input frequency
≤
300 kHz
ð
8 digital inputs
The functions can be selected by means of the software
Input voltage: 0...8 V
⇒
"0 signal", 16...60 V
⇒
"1 signal"
Time constant of smoothing capacitor: 10 ms
R
E
= 15 k
Ω
The signal refers to the unit casing potential
Auxiliary voltage for digital inputs: +48 V-,
≤
50 mA, sustained-short-
circuit-proof
ï
7+1 digital outputs
The function can be selected by means of the software
7 outputs: relay driver with free-wheel diode, total current limitation
≤
160 mA, short-circuit-proof
1 relay output - on power pack board SDCS-POW-1 (N.O. contact
element: AC:
≤
250 V/
≤
3 A / DC:
≤
24 V/
≤
3 A or
≤
115/230 V/
≤
0.3 A)
protected by VDR component.
Description of I/O signals SDCS-IOB-2x & SDCS-IOB-3
Mechanical system
always external, outside the basic unit
Terminals
Screw-clamp terminals for finely stranded wires up to max. 2.5 mm
2
cross-sectional area
Functionality of SDCS-IOB-3
ð
1 tacho input
Resolution: 12 bit + sign; differential input; common-mode range ±20 V
Range 8 V- with n
max
; if higher tacho voltages are in use the tacho
adaptation board PS 5311 is needed.
ð
4 analogue inputs
All as differential inputs; time constant of smoothing capacitor
≤
2 ms
Input 1: Range -10 V/-20 mA...0...+10 V/+20 mA; 4... 20 mA unipolar;
R
E
= 200 k
Ω
/ 500
Ω
/ 500
Ω
; Resolution: 12 bit + sign; common-mode
range ±20 V
Inputs 2+3: Range as with input 1, in addition -1 V...0...+1 V
R
E
= 200 k
Ω
/ 500
Ω
/ 500
Ω
/ 20k
Ω
; Resolution: 11 bit + sign; common-
mode range with -1 V...0...+1 V range ±10 V, otherwise ±40 V
Input 4: Range as with input 1
R
E
= 200 k
Ω
/ 500
Ω
/ 500
Ω
; Resolution: 11 bit + sign; common-mode
range ±40 V
ð
Error current detection in combination with analogue input 4
(sum of phase currents
≠
0)
ï
2 outputs
+10 V, -10 V, I
A
≤
5 mA each; sustained-short-circuit-proof
for reference potentiometer voltage supply
ï
1 analogue output
Bipolar current feedback - from the power section; decoupled
IdN
⇒ ±
3 V (at gain = 1); I
A
≤
5 mA, U
Amax
= 10 V, gain can be adjusted
by means of a potentiometer between 0.5 and 5, short-circuit-proof
ï
2 analogue outputs
Range -10...0...+10 V; I
A
≤
5 mA; short-circuit-proof
Output signal and scaling can be selected by means of the software
Resolution: 11 bit + sign
ï
Current source for PT 100 or PTC element evaluation
I
A
=
5 mA / 1.5 mA
ð
1 pulse generator input
Voltage supply, output current, input range: as with IOB1
Inputs electrically isolated from 0 V (casing earth) by means of optocou-
pler and voltage source.
Functionality of SDCS-IOB-2x
3 different designs available:
m
SDCS-IOB-21 inputs for 24...48 V-; R
E
= 4.7 k
Ω
m
SDCS-IOB-22 inputs for 115 V AC; R
E
= 22 k
Ω
m
SDCS-IOB-23 inputs for 230 V AC; R
E
= 47 k
Ω
Terminals
Screw-clamp terminals up to max. 4 mm
2
cross-sectional area
ð
8 digital inputs
The functions can be selected by means of the software
The signal status is indicated by an LED
all isolated by means of optocouplers
Input voltage:
IOB-21:0...8 V
⇒
"0 signal", 18...60 V
⇒
"1 sig."
IOB-22:0...20 V
⇒
"0 signal", 60...130 V
⇒
"1 sig."
IOB-23:0...40 V
⇒
"0 signal", 90...250 V
⇒
"1 sig."
Filter time constant: 10 ms (channels 1...6), 2 ms (channels 7+8)
Auxiliary voltage for digital inputs: +48 V-,
≤
50 mA, sustained- short-
circuit-proof; referenced to the unit casing potential
ï
8 digital outputs
The functions can be selected by means of the software
The signal status is indicated by an LED
6 of them potential-isolated by relay (N.O. contact element: AC:
≤
250 V/
≤
3 A / DC:
≤
24 V/
≤
3 A or
≤
115/230 V/
≤
0.3 A) , protected by VDR
component.
2 of them potential-isolated by optocoupler, protected by Zener diode
(open collector) 24 V DC external, I
A
≤
50 mA each.
