Yaskawa GPD333 - Manual (Page 5)

DWG. NO. 02Y00025-0351
SHEET NO. 5 OF 7
EFF. 12/7/93
(m-df )
Refer to Sheet 1 for latest change.
B. Braking Resistor Unit Installation
7. The braking resistor unit requires vertical
installation with ample clearance space (see Figure 2)
to achieve high cooling efficiency.
IMPORTANT
Since the braking resistor unit generates heat
during dynamic braking operation, install it in
a location away from other equipment which
emits heat.
8. Open the braking resistor terminal box for
access to terminals. Connect the braking resistor unit
to the drive according to Table 2 and Figure 5.
ADJUSTMENTS
9. The braking resistor (3% duty cycle) and the
braking resistor unit (10% duty cycle) require drive
re-programming. Program constant
no-20 to
1 X X X, which disables stall prevention during decel.
10. Reinstall and secure front cover on the drive
and close and secure the terminal box on the the
remote-mount braking resistor unit.
11. Place this instruction sheet with the GPD 333
Technical Manual.
This completes the installation of this option.
Table 2
Terminals B, P 1, 2 ✱
Lead Size (AWG) 12-10 18-14 ✱
Lead Type 600V ethylene propylene
rubber insulated or equiv.
Terminal Screw M4
✱ Power leads are for the braking resistor unit
generate high levels of electrical noise; these
signal leads must be grouped separately.
NOTE
External control components shown in Figure
5 are not supplied with the option. These
components are necessary for safe operation
of the Dynamic Braking option.