NORD Drivesystems B1000 - Manual (Page 741)

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G1000 – Subject to Change Without Notice
BRAKES
Current Sensing Relay (IR)
The current sensing relay, is used to achieve a fast
brake engagement (stopping) without the use of
external control equipment or additional wiring. The
relay is mounted directly on the conduit box, and
is powered from the motor’s terminal block. The
power leads for the relay replace one of the brass
jumper bars on the terminal block of any single
speed motor. The switch leads are connected to
terminals 3 and 4 of the rectifi er. When the power
to the motor is shut off, the IR relay opens the brake
circuit on the DC side which allows the brake to
de-magnetize quickly.
Mod
Requirements
• Brake must be powered from the motor’s terminal
block (not seperately powered)
• Motor must be a single speed and should not be
powered by a frequency inverter or soft starter.
CAUTIONS
Ratings
Part number 18556010 18556020
Motor Frame Sizes *63S - 180M 180L - 225M
AC Input Current
- black/white wires 25A
AC
75A
AC
- 0.2 s
50 A
AC
75 A
AC
- 0.2 s
DC Brake Current
- red/blue wires
2.0 A DC 2.0 A DC
Additional Brake
Setting Delay
18 ms 18 ms
Ambient Temperature
- 40 to 75 °C
- 40 to 167 °F
- 40 to 75 °C
- 40 to 167 °F
Enclosure Rating IP65 IP65
* For 180MX motor frame at 230/460V use part number
18556020
Connection Notes
Rectifi er IR-Relay Wires
to Rectifi er
Model
Type Part
Number
Design Red Blue
GVE20L 1914000 Full-wave 3 4
GHE40L 19141010 Half-wave 4 3
GHE50L 19141020 Half-wave 4 3
GPE20L 19140230 Push-hybrid 4 3
GPE40L 19140240 Push-hybrid 4 3
Conduit Box Thread Adapter
Thread Motor Frame Part Number
M20 63-71 18542006*
M25 80-90 18522253
M32 100-132 18522320
M40 160-180 18522400 + 18522253
* Spacer
Options