• H-bridge upper-left: H_UP_LEFT
• H-bridge upper-right: H_UP_RIGHT
• H-bridge lower-left: H_LO_LEFT
• H-bridge lower-right: H_LO_RIGHT
These outputs must be connected to the static outputs of the protection relay.
With the H-bridge functionality it is possible to drive the motor to left or to right,
and brake the motor. The auxiliary voltage (U
aux
) connected to the H-bridge has to
match the voltage of the motor.
X1
1
BIO1002/ BIO1004
2
3
4
5
6
7
8
9
10
11
12
BI9
BI8
BI7
BI6
BI5
BI4
BI3
BI2
BI1
X2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SPO1
SPO3
SPO2
SPO4
SPO5
SPO6_TCS
SPO7
SPO6
SPO8_TCS
SPO8
Uaux -
Uaux +
H_UP_LEFT
H_UP_RIGHT
H_LO_LEFT
H_LO_RIGHT
M
Figure 834: H-bridge motor control for a protection relay equipped with BIO1002
module
Table 1478: H-bridge motor operation depending on active outputs
Motor direction Static outputs
H_UP_LEFT H_UP_RIGHT H_LO_LEFT H_LO_RIGHT
Motor right 1 0 0 1
Motor left 0 1 1 0
Motor brake 1 1 0 0
Motor brake 0 0 1 1
Motor free 0 0 0 0
Be aware of the motor polarity so that a correct connection between
the motor and the H-bridge is established. The H-bridge needs to
be properly connected to the static outputs of the protection relay
in Application Configuration. Wrong connections affect the motor
functionality and may cause personal injury or damage to the equipment.
1MRS759142 F Control functions
REX640
Technical Manual
1527
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