Yaskawa CIMR-PU2A0081 [365/548] Using braking units in parallel

Превью страниц Страница 365 / 548
Yaskawa CIMR-PU2A0081 [365/548] Using braking units in parallel
Thermal Relay
Trip Contact
Drive
Braking Unit
(CDBR type)
Braking Resistor Unit
(LKEB type)
Thermal Overload
Protector Trip Contact
1
2
P
3 4
3 + + 0
− 0
B
+
Figure 8.16 Connecting a Braking Unit (CDBR type) and Braking Resistor Unit (LKEB type)
(Models 2A0169 to 2A0415 and 4A0088 to 4A1200)
Note: To install a CDBR type braking unit to the drive with a built-in dynamic braking transistor (models 2A0004 to 2A0138 and
4A0002 to 4A0072), connect the drive B1 terminal to the positive terminal on the braking unit. Next, wire the negative terminals on the
drive and braking unit together. Terminal B2 is not used.
n
Using Braking Units in Parallel
When multiple braking units are used, they must be installed with a master-slave configuration with a single braking unit
acting as the master. Figure 8.17 illustrates how to wire braking units in parallel.
Wire the thermal overload contact relays of all CDBRs and all braking resistors in series, then connect this signal to a drive
digital input. This input can be used
to trigger a fault in the drive in case of overload in any of the CDBRs or braking resistors.
Drive
Braking Resistor
Overheat Contact
(Thermal Relay Trip Contact)
Braking Resistor
Overheat Contact
(Thermal Relay Trip Contact)
Braking Resistor
Overheat Contact
(Thermal Relay Trip Contact)
Braking
Resistor
Unit
Braking
Resistor
Unit
Braking
Resistor
Unit
Braking Unit 2
+15
5
1
2
6
SLAVE
MASTER
Level Detector
Cooling Fin Overheat Contact
(Thermoswitch Contact)
Cooling Fin Overheat Contact
(Thermoswitch Contact)
Cooling Fin Overheat Contact
(Thermoswitch Contact)
Braking Unit 3
Braking Unit 1
1
3 4
3 4 3
5
6
5
6
1
2
4
2
3
1
P
2
B
− 0+ 0+
+ + + 0 − 0+ 0 − 0
BP BP
1 2
1
2
MASTER
SLAVE
MASTER
SLAVE
+
Figure 8.17 Connecting Braking Units in Parallel
8.5 Installing Peripheral Devices
YASKAWA SIEP YAIP1U 01A AC Drive - P1000 Technical Manual
365
8
Peripheral Devices &
Options

Содержание

2656