Rockwell Automation SP120 ACDrive 115VAC, 1Ph, 230VAC, 1Ph/3Ph, 1/4-5.0HP - Manual (Page 21)

Installing and Wiring the Drive 2-7
English
2.5 Wiring the Control Terminal Block
Ensure that the following requirements are met when wiring the control terminal block:
• Run all signal wiring in either a shielded cable or separate metal conduit.
• Do not exceed control wiring length of 20 meters (65.6 feet).
• Use 0.75 mm 2 (18 AWG) wire for the alarm relay. Torque the mounting screws to
0.5-0.6 Nm (4.4-5.3 in lb).
• Use 18 AWG to 28 AWG (0.75 to 0.14 mm
2
), twisted pair, shielded, or 3-conductor
wire for all other signal connections. Torque all connections to 0.2 to 0.25 Nm (1.77
to 2.21 in lb).
• Avoid crossing the power lines or motor lines with the control wires. If they must
cross, ensure that they cross at right angles (90
o ).
• If using transistor outputs 11 or 12 with an inductive load such as a relay, install a
recovery diode parallel to the relay, as shown in figure 2.6, to prevent damage to the
output.
Figure 2.6 shows typical control terminal connections.
!
ATTENTION: Control terminals are isolated, but not tied to earth ground.
If terminal (L) on the control terminal block is not grounded, exposed
conductors, shields or metal conductors can be at hazardous voltage
levels. Failure to observe this precaution could result in severe bodiy
injury or loss of life.
Figure 2.6 – Typical Control Terminal Connections
24V
5V
PTC
0-10V
0-10V
1-2k Ohm Pot.
4-20mA
24V
24V
230V AC
Fault Relay
Frequency Reference
10V
P24
FM
L
11
CM2 – +
– +
12
CM2
AL0
AL1
AL2
1
2
3
4
5
L
H
O
OI
L
4.4k
4.4k
4.4k
5.1k
680
680 680
V
=
=
~
Internal
Power
P24
1
24V
2
3
4
5
L
External
Power
IMPORTANT: Only one frequency
source may be connected at a time.
If more than one reference is
connected at the same time,
an undetermined frequency
reference will result.
To improve noise immunity, the
control terminal block common
(terminal L) must be connected
to ground terminal/protective earth.