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Chapter 3
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3.1. Relay Connector (TB301)
The relay can be used to automatically control a fail-safe brake on a vertical axis. It can also be used as a
general purpose relay. The normally-open relay contacts are accessible through TB301 and the Motor
Feedback (J207) connector. The normally-closed relay contact is only accessible through TB301 (
). The Motor Feedback connector allows the brake wires to be included in the motor feedback cable and
eliminate the need for a separate brake cable.
The brake output can be software configured; refer to the A3200 Help file for more information (see topics for
the EnableBrakeControl parameter and the BRAKE command).
When TB301 is used to power the mechanical brake control relay, the solid state brake control relay (TB202)
should not be used.
The user must verify that the application will be within the specifications of the Brake/Relay contacts.
Table 3-3:
Voltage and Current Specifications (TB301)
Relay K1 Contact Ratings
Maximum Switched Voltage
150 VDC, 125 VAC
Maximum Switched Current
1A
Maximum Carrying Current
1A
Maximum Switched Power
30 W (DC), 60 VA (AC)
N O T E :
Do not exceed Maximum Current or Maximum Power specifications.
Table 3-4:
Relay Connector Pinout (TB301)
Pin#
Description
In/Out/Bi
1
Brake Relay Output Normally Closed Contact
Output
2
Brake Relay Output Common Contact
Output
3
Brake Relay Output Normally Open Contact
(1)
Output
(1) For JP3 jumper configuration, refer to
Table 3-5:
Mating Connector Part Numbers for the Relay Connector (TB301)
Description
Aerotech P/N
Phoenix P/N
Wire Size:
AWG [mm
2
]
3-Pin Terminal Block
ECK01449
1881338
0.5 - 0.080 [20-28]
The configuration of JP3 (
) allows either the Brake + or the Brake - output to be switched by the
relay and connected at the Motor Feedback connector or for the brake to be connected at TB301. Refer to
for more information.
Table 3-6:
-IO Expansion Board Brake Jumper Configuration
Jumper
Setting
Description
JP3
1-2, 3-4
Switch Brake +
5-6, 7-8
(1)
Switch Brake -
1-3
Relay Only
(1) default
N O T E :
The user is responsible for providing fuse protection for the brake circuit.
Ndrive HPe 10/20/30
-IO Expansion Board
Summary of Contents for Ndrive HPe 10
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