Nb1 g b2 b2 b1, Db resistor, Db unit – HP 30 HP30 User Manual
Page 185
Chapter 7 - Options
7-23
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DB Resistor/Unit wiring for 15-30 HP Inverter
DB resistor terminal
Terminal description
B1, B2
Connect the DB Resistor to Inverter terminal B1,B2.
TH1, TH2
Thermal sensors provided with the DB resistor.
P1 is ON (TH1-TH2 Shorted) at normal (ambient temp) and P1 is OFF (TH1-TH2
Open) at overheated status. Connect the thermal sensor to one of the multi-function
input (P1, P2 or P3, I/O 12-14 setting: Ext Trip-B).
* For DBU, refer to 7.6.3 DB Unit.
IM
U
V
W
G
R
S
T
P2
DB Resistor
FX
RX
BX
RST
JO
P2
P3
FM
+
FM
5G
Analog freq
output
2)
(0-10V)
P1
REV Run / Stop
FWD Run / Stop
Fault reset
Jog
Max Current thru
PC : 5mA
CM
24 V
TH1
TH2
Max distance : 5m
The wire should be TWISTED
Multi-function input terminal
(I/O-12 Setting : Ext Trip-B)
P1
Short
N
N
B1
G
B2
B2
B1
DB Unit
Max distance : 5m
P