Honeywell
• 45
C
ONTROL
UNIT
5.1
Control unit cabling
The basic control unit connections are presented in Figure 41 below. The control board is
equipped with 30 fixed control I/O terminals. All signal descriptions are given in Tables 23 to 24.
Figure 41.
5.1.1
Control cable sizing
The control cables shall be at least 0.5 mm
2
screened multicore cables, see Table 13. The
maximum terminal wire size is 2.5 mm
2
for the relay and other terminals.
Find the tightening torques of the control and relay board terminals in Table 22 below.
Table 22. Control cable tightening torques
Terminal screw
Tightening torque
Nm
lb-in.
All I/O and relay terminals
(screw M3)
0.5
4.5
28 29
12 13 14 15 16 17 18 19 30
B
A
21 22 23
24 25 26
1 2 3 4 5 6 7 8 9 10 11