CERUS CI-007-P2, Installation, Programming Operation, & Maintenance Manual

Page: 120 / 137

Chapter 9 - Options
9-1
CHAPTER 9 - OPTIONS
9.1 Option List
E
x
te
rn
al
Keypad LCD 32 character display
keypad Download and Upload available All units
Remote Remote cable 6, 9 and 15-foot long keypad cable to
control VFD from remote keypad. Optional
Dynamic
braking DB unit and
resistor
Allows VFD to decelerate rapidly without
overvoltage fault.
Optional
Conduit box
option NEMA TYPE 1
Conduit box Install it for NEMA TYPE 1 rating. 20~125HP
15~90kW
Note: Refer to Option manual for details.
9.2 Remote Keypad Cable
Ordering No.
Description
CI-RKPK-EXT2M-P/S Remote cable –6ft
CI-RKPK-EXT3M-P/S Remote cable – 9ft
CI-RKPK-EXT5M-P/S Remote cable – 15ft
9.3 DBU (Dynamic Braking Unit) sizes
VFD Applicable motor rating DB Unit Dimension
230V class
15 ~ 20 HP (11 ~ 15 kW) CI-DBU-20-2 Frame 1
25 ~ 30 HP
(18.5 ~ 22 kW)
CI-DBU-30-2
Frame 2
40 ~ 50 HP (30 ~ 37 kW) CI-DBU-40-2
60 ~ 75 HP
(45 ~ 55 kW)
CI-DBU-50-2
Frame 3
480V class
15 ~ 20 HP (11 ~ 15 kW) CI-DBU-20-4 Frame 1
25 ~ 30 HP (18.5 ~ 22 kW) CI-DBU-30-4
Frame 2
40 ~ 50 HP (30 ~ 37 kW) CI-DBU-40-4
60 ~ 75 HP (45 ~ 55 kW) CI-DBU-50-4
Frame 3
100 HP (75 kW) CI-DBU-60-4
125 ~ 700 HP
(90~525 kW) DBU Combination DBU Combination
Note: P Series VFD does not have internal dynamic braking transistor and DB resistor and requires
external DBU and DBR set. Refer to DBU manual for multiple units and resistors arrangement.
9.4 DBU and DBR terminals and wiring
Terminals Description
G Connect to system Ground terminal
B2
Connect to DB Resistor’s
B2
B1 Connect to DB Resistor’s B1
N
Connect to VFD Negative terminal
N-
P Connect to VFD Positive terminal P1+
Note: Refer to DBU and DBR manuals for proper wiring instructions.