YASKAWA L7B, Quick Start Manual, Page: 13 / 36

EN-13
Table 1 Main Circuit Terminal Functions (200 V Class and 400 V Class)
„ Control Circuit Terminals
Fig 2 shows the control terminal arrangement. The functions of the control circuit terminals are shown in
Table 2 . Use the appropriate terminals for the correct purposes.
Fig 2 Control terminal arrangement
Table 2 Control Circuit Terminals with default settings
Purpose Terminal Symbol
Model: CIMR-L7B ††††
200 V Class 400 V Class
Main circuit power input
R/L1, S/L2, T/L3 23P7 to 2055 43P7 to 4055
R1/L11, S1/L21, T1/L31 2022 to 2055 4022 to 4055
Inverter outputs U/T1, V/T2, W/T3 23P7 to 2055 43P7 to 4055
DC bus terminals
1,
23P7 to 2055 43P7 to 4055
Braking Resistor Unit connection B1, B2 23P7 to 2018 43P7 to 4018
DC reactor connection
1, 2
23P7 to 2018 43P7 to 4018
Braking Unit connection
3,
2022 to 2055 4022 to 4055
Ground 23P7 to 2055 43P7 to 4055
Control Power Supply PO, NO 23P7 to 2055 43P7 to 4055
Type No. Signal Name Function Signal Level
Digi-
tal
input
signals
S1 Forward run/stop command Forward run when ON; stopped when OFF.
24 VDC, 8 mA
Photo-coupler
S2 Reverse run/stop command Reverse run when ON; stopped when OFF.
S3 Nominal speed Nominal speed when ON.
Functions are
selected by setting
H1-01 to H1-05.
S4 Inspection Run Inspection RUN when ON.
S5 Intermediate speed
Intermediate speed when
ON.
S6 Leveling speed Leveling speed when ON.
S7 Not used –
BB Hardware baseblock Both inputs must be enabled to enable the inverter
output
BB1 Hardware baseblock 1
SC Digital input common – –
Ana-
log
input
signals
+V
15 V power supply
*1
*1. Do not use this power supply for supplying any external equipment.
15 V power supply for analog references
15 V
(Max. current: 20 mA)
A1 Frequency reference 0 to +10 V/100% 0 to +10 V(20 k
Ω
)
AC Analog reference neutral – –
E(G)
Shield wire, optional ground line
connection point
– –
Digi-
tal
output
signals
M1
Brake command
(1NO contact)
Brake command when ON.
Multi-function con-
tact outputs
Relay contacts
Contact capacity:
1 A max. at 250 VAC
1 A max. at 30 VDC
*2
*2. When driving a reactive load, such as a relay coil with DC power supply, always insert a flywheel diode as shown in Fig 3 .
M2
M3
Contactor Control
(1NO contact)
Contactor Control when ON
M4
M5
Inverter Ready
(1NO contact)
Inverter Ready when ON.
M6
MA
Fault output signal (SPDT)
(1 Change over contact) Fault when CLOSED across MA and MC
Fault when OPEN across MB and MC
MB
MC
+V
SC SC SC BB
A1 AC
E(G) S1 S2 S3 S4 S5 S6 S7 BB1
M5 M6
M3 M4
MA MB MC
M1 M2
E(G)