Trane TR200 Series Programming Manual page 71

Parameter Description
2-1* Brake Energy Funct.
Parameter group for selecting dynamic braking parameters. Only valid for drives with brake chopper.
2-10 Brake Function
Option:
[0] * Off
[1] Resistor brake
[2] AC brake
2-11 Brake Resistor (ohm)
Range:
50. [5. - 65535. Ohm]
Ohm*
2-12 Brake Power Limit (kW)
Range:
5.000 [0.001 - 2000.000 kW]
kW*
For 200 - 240 V units:
For 380 - 480 V units
For 380 - 500 V units
For 575 - 600 V units
This parameter is only active in frequency converters with an integral dynamic brake.
70
Function:
No brake resistor installed.
Brake resistor incorporated in the system, for dissipation of surplus brake
energy as heat. Connecting a brake resistor allows a higher DC link volt-
age during braking (generating operation). The Resistor brake function
is only active in frequency converters with an integral dynamic brake.
AC Brake will only work in Compressor Torque mode in par.1-03
Characteristics.
Function:
Set the brake resistor value in Ohms. This value is used for monitoring
the power to the brake resistor in par.2-13
parameter is only active in frequency converters with an integral dy-
namic brake.
Use this parameter for values without decimals. For a selection with two
decimals, use par.30-81
Function:
Set the monitoring limit of the brake power transmitted to the resistor.
The monitoring limit is a product of the maximum duty cycle (120 sec.)
and the maximum power of the brake resistor at that duty cycle. See the
formula below.
390 2 ×
dutytime
P resistor
=
R
× 120
778 2 ×
dutytime
P resistor =
R × 120
810 2 ×
dutytime
P resistor
=
R
× 120
943 2 ×
dutytime
P resistor
=
R
× 120
Brake Power
Brake Resistor (ohm).
TR200 Programming Guide
Torque
Monitoring. This