Hitachi L700 SERIES Instruction Manual page 83

(2) External DC braking
Assign function "07" (DB) to terminal function (C001 to C008).
Direct braking control by ON/OFF of DB terminal when the setting of DC braking enable (A051) is
00(Invalid) and 01(Valid).
Adjust the braking force by adjusting the DC braking force setting (A054).
When you set the DC braking wait time (A053), the inverter output will be shut off for the set period of delay,
and the motor will run freely during the period. DC braking will be restarted after the delay.
When setting the DC braking time with function "A055" or for the DC braking operation via the DB terminal,
determine the length of time in consideration of the heat generation on the motor.
Select the braking mode by the DC braking/edge or level detection for [DB] input (A056), and then make
any other necessary settings suitable for your system.
(a) Edge mode (A056: 00)
(Example 1-a)
FW
DB
Output
frequency
(Example 2-a)
FW
DB
Output
frequency
(Example 3-a)
FW
DB
Output
frequency
Free running
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Chapter 4 Explanation of Functions
(b) Level mode (A056: 01)
(Example 1-b)
FW
DB
Output
frequency
(Example 2-b)
FW
DB
Output
frequency
(Example 3-b)
FW
DB
Output
frequency
Free running