CG Emotron VFX Series User Manual

132 Functional Description CG Drives & Automation, 01-5326-01r5
Brake Release Time [33C]
The Brake Release Time sets the time the AC drive delays
before ramping up to whatever final reference value is
selected. During this time a predefined speed can be
generated to hold the load where after the mechanical brake
finally releases. This speed can be selected at Release Speed,
[33D]. Immediate after the brake release time expiration the
brake lift signal is set. The user can set a digital output or
relay to the function Brake. This output or relay can control
the mechanical brake.
Communication information
Fig. 103 shows the relation between the four Brake
functions.
• Brake Release Time [33C]
• Release Speed [33D]
• Brake Engage Time [33E]
• Brake Wait Time [33F]
The correct time setting depends on the maximum load and
the properties of the mechanical brake. During the brake
release time it is possible to apply extra holding torque by
setting a release speed reference with the function release
speed [33D].
Fig. 103 Brake Output functions
33C Brk Release
Default: 0.00 s
Range: 0.00–3.00 s
Modbus Instance no/DeviceNet no: 43112
Profibus slot/index 169/16
EtherCAT and CANopen index (hex) 4c28
Profinet IO index 19496
Fieldbus format Long, 1=0.01 s
Modbus format EInt
NOTE: Although this function is designed to operate a mechanical brake via the digital outputs or relays (set to brake
function) controlling a mechanical brake, it can also be used without a mechanical brake and hold the load in a fixed
position.
Release Speed [33D]
Mechanical
Brake
Brake Relay
Output
Action must take place within
these time intervals
Brake release
time [33C]
Brake engage
time [33E]
Brake wait
time [33F]
Closed
On
Off
Open
Start

CG Emotron VFX Series Specifications

General

Brand	CG
Model	Emotron VFX Series
Category	Controller
Language	English