Control Techniques Commander SK Getting Started Manual page 31

Safety Rating Mechanical
Information Data Installation
Pr 46 to Pr 51 appear when Pr 12 is set to control a motor brake.
No Function
46 Brake release current threshold
47 Brake applied current threshold
Defines the brake release and brake applied current thresholds as a % of motor current.
If the frequency is >Pr 48 and the current is >Pr 46, the brake release sequence is started.
If the current is <Pr 47, the brake is applied immediately.
No Function
48 Brake release frequency
49 Brake apply frequency
Defines the brake release and brake applied frequencies.
If the current is >Pr 46 and the frequency is > Pr 48, the brake release sequence is
started.
If the frequency is <Pr 49 and the drive has been commanded to stop, the brake is
applied immediately.
No Function
50 Pre-brake release delay
Defines the time between the frequency and load condition being met and the break
being released. The ramp is held during this time.
No Function
51 Post brake release delay
Defines the time between the brake being released and the ramp hold being released.
Commander SK Getting Started Guide
Issue Number: 1
Electrical Keypad and
Parameters
Installation Display
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Quick Start
Diagnostics Options
Commissioning
Range
0 to 200 %
Range
0.0 to 20.0 Hz
Range
0.0 to 25.0 s
Range
0.0 to 25.0 s
Parameter UL Listing
List Information
Defaults Type
50
RW
10
Defaults Type
1.0
RW
2.0
Defaults Type
1.0 RW
Defaults Type
1.0 RW
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