ABB BALDOR BC155, Инструкция по установке и эксплуатации, Страница: 7 / 16

2-1 MN705
Chapter 2
Installation
WARNING: Do not use this drive in an explosive environment. An explosion can cause serious or fatal injury.
This drive is not explosion proof.
Introduction
The BC155 is intended to be installed in a vertical position on a flat surface free of moisture, metal
chips, or corrosive atmosphere.
Control installation must ensure unrestricted air flow through the heatsink cooling fins.
Mounting
The BC155 control is designed for use on machine applications. Mount the BC155 on a flat surface
free of moisture, metal chips, corrosive atmosphere, or excessive vibration. Mount the control in such
a manner that there is unrestricted air flow through the heat sink cooling fins.
A 5K ohm speed potentiometer is provided with each control. Install the potentiometer using the
hardware provided. Be sure to install the insulating disk between the pot and the panel mounting
surface.
Enclosure – When mounting the BC155 in an enclosure, the enclosure must be large enough to allow
for proper heat dissipation. The maximum allowable ambient temperature at full rating is 40ºC/104ºF.
The WATTS LOSS value of the control at full load is 60 watts.
Electrical Connections
Connection terminals are shown in Figure 2-1.
Figure 2-1 Connection Diagrams
AC Line
50/60 Hz
Armature
Motor
Pot Enable Inhibit
Remove jumper
for TACH feedback
Tach
Field*
P3 P2 P1
L1 L2 A+ A-
F+ F- P1 P2 P3 E
I
1
I
2 7V 50V J1 J2
Power Block Control Block
Table 2-1 Terminal Block Wiring
Terminal
Designation
Connection
Designation
Supply Wire Gauge
(AWG – Copper)
Tightening
Torque max.
Minimum Maximum (lb-in)
Power Block L1, L2, A+, A- 10 (max. 50 ft.) 8 (max. 100 ft.) 20
Control Block
F+, F- (200 VDC field)
22 12 4.4 F+, L1 (100 VDC field)
Signal – Control Wiring
AC Power
Verify AC Line voltage matches to control voltage rating, (208/230VAC - 50/60 Hz. 1phase). Connect
AC Line to L1 and L2 terminals and tighten to correct torque (Table 2-1). The installer should provide
fuse or circuit breaker protection for each Ungrounded supply conductor. Use a 40 Amp rated fuse
(Buss type SC-40 or equivalent). Do not fuse neutral or grounded conductors. The control can be
turned ON and OFF using the AC line. Auto-Inhibit® circuitry automatically resets critical components
each time the AC line is interrupted. This, along with Acceleration Start and Current Limit, (CL),
provides a smooth start each time the AC line is applied.