Terminal Details; Block A; Block B; Cabling - Honeywell Excel 50 Installation Instructions Manual

Table 2. Terminal blocks
name
screw terminal block

Terminal Details

Block A

Fig. 16. Screw Terminal Block A

Block B

A01
A02
A03
A04
DI1
DI2
DI3
DI4
+10V/5mA REF.
DI-POWER
AI1
AI2
AI3
AI4
AI5
AI6
AI7
AI8
Fig. 17. Screw Terminal Block B
NOTE: The output (18...30 Vdc) of terminal 32 in screw
terminal block B is not stabilized. If you wish to
connect terminal 32 to a digital input via a potential-
free relay, see Fig. 26 on page 15.
code no. of terminals
XS 50 Block A 14
XS 50 Block B 34
15
16
17
18
19
20
21
22
23
GND
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 AGND
41
42
43
44
45
46
47
48
EXCEL 50 INSTALLATION INSTRUCTIONS

Cabling

Cable Routing

All signal (input/output, low voltage) cables are communi-
cation circuits in accordance with VDE 0100, VDE 0800 and
local regulations and should therefore be routed separately
from line voltage.
Table 3. Min. distances to line voltage
cable type
unshielded cable
shielded cable
IMPORTANT
Avoid joining sensor cables.

Shielding

Fig. 18. Sensor shielding
Shielding of sensor and actuator cables with low protective
voltages is not necessary if the general guidelines on cable
routing are observed (see "Cable Routing", page 11). If these
guidelines cannot be observed, shielded cable must always
be used. The shielded cable must be grounded as shown in
Fig. 18.
IMPORTANT
Shielding of I/O cables that are connected to
peripherals such as sensors and actuators must be
grounded at the control cabinet side, only; this is in
order to avoid ground loops.
All Honeywell actuators are RFI suppressed in accordance
with VDE 0871/B and VDE 0875/N.
Lightning Protection
Please check with your local Honeywell representative for
information on lightning protection.
11
min. distance
4 in. (100 mm)
3/8 in. (10 mm)
EN1B-0101GE51 R1105D