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Limitorque QX Electronic Actuator FCD LMENIM3306-06 – 07/14

Figure 3.12 – Terminal Block Shield

M3 X 5 SELF

LOCK SCREW

USE QTY. OF TWO (2)

M3 X 5 SELF LOCK SCREWS

TO MOUNT SHIELD.

USE 2 SCREWS FROM

TERMINAL BLOCK OR

FROM END USERS BAG.

SHIELD-TERMINAL

BLOCK

3.5 Commissioning the Actuator

Before attempting to commission the actuator, verify that the actuator is installed correctly on the valve and main power

is “ON.”

After making the initial electrical connections detailed in Section 3.3, Electrical Connections, the QX actuator may be

commissioned without removing any covers. No special tools are required. Conﬁguration is accomplished through the

use of the LCD and the control knobs mounted on the control panel.

For positioning the actuator:

1. Place the red knob in the “LOCAL” position.

2. Move the black knob to the “OPEN” or “CLOSE” position.

For conﬁguring the actuator:

1. Place the red knob in the “STOP” position.

2. Move the black knob to the “YES” or “NO” position and release to answer questions appearing on the LCD display.

The OPEN and CLOSE position limits must be set after the actuator has been mounted on the valve. See Section 3.5.4,

Setting Position Limits. All other actuator parameters are factory-set either in accordance with a Limitorque standard

set of default values (see Section 3.5.1, Default Conﬁguration Set) or the requirements speciﬁed with the purchase

order. Reconﬁrm these preconﬁgured settings prior to placing the actuator into service since the requirements of the

application may have changed after the manufacture of the actuator. See Section 3.5.2, View the Existing Settings.

3.5.1 Default Conﬁguration Set

Unless otherwise speciﬁed, actuators are shipped with the following conﬁguration:

• When Open stopped by position limit; Open seating (position)

• When Close stopped by position limit; Close seating (position)

• Maintained local control; Mode (maintained)

• Clockwise to close; Close direction (CW)

• ESD – User conﬁgurable inputs; default is “OFF”

• Inhibits on; Inhibit status (Default = OFF)

• Remote control – three-wire maintained

• Password – 100

Flowserve Limitorque QX User Manual

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