Control Of Three-Position Switch Using H-Bridge With Static Outputs Of The Protection Relay - ABB RELION REX640 Technical Manual

Section 9
Control functions
9.2.4.2
1370
Control of three-position switch using H-bridge with static outputs of the
protection relay
When using the protection relay for direct motor control of the three-position switch,
the setting Control mode must be set as "Direct control".
If the protection relay is equipped with static outputs, the three-position switchgear
motor can be controlled with an H-bridge. The function has four outputs for motor
control.
• 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
of the motor.
BIO1002/ BIO1004
X1
1
BI1
2
BI2
3
BI3
4
5
BI4
6
BI5
7
BI6
SPO6_TCS
8
9
BI7
10
BI8
SPO8_TCS
11
BI9
12
GUID-C245D561-69F8-4DCE-9C6F-E1C831F9AF33 V2 EN
Figure 730: H-bridge motor control for a protection relay equipped with BIO1002
module
) connected to the H-bridge has to match the voltage
aux
X2
3
SPO1
4
5
SPO2
6
7
SPO3
8
9
SPO4
10
11
SPO5
12
13
SPO6
14
15
SPO7
16
17
SPO8
18
1MRS759142 C
Uaux -
H_UP_LEFT
M
H_UP_RIGHT
H_LO_LEFT
H_LO_RIGHT
Uaux +
REX640
Technical Manual