Metso NelesAce, Operating Instructions Manual

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6 8 ACE 71 en
2.3.3 Error signal connections
Error signal is available at connector X3, pins 3 and 4.
The following errors are indicated:

no supply voltage to limit switches.

overheating of controller, >85 °C.

shot circuit in motor winding.

blow out of controller fuse.
2.3.4 Cable connections for actuator
Two cables are connected to the actuator. The first is con-
nected to the connector cover of actuator which has the
connections of the limit switch and the feedback potenti-
ometer, Fig. 6. The second cable is connected to the step
motor, Fig. 7. The cables are connected as shown in Fig. 3.
3 COMMISSIONING
Check the following proceedings at commissioning:

Check connections.

Check grounding.

Connect power supply.

Check that LED 11 is lit (HW Enable), see Fig. 5.

Move valve to open and close limits in manual mode.
Check functioning of limit switches and position display.

Connect control unit to automatic mode and check
that the valve is also operable with the signal from
control system.
Fig. 5 Connector card
Fig. 6 Connectors and LEDs for step motor controller
Fig. 7 Connector cover
S1
LED
LED
X6
X2
X3
F1
X1
LED
X5
X4
T1
13
12
5
6
7
8 1
2
3
4
A
B
C
D
10 9
11
1
1
1
Fuse
Mains
L
N
1
– Limit switch + Limit switch
10 9
HW Enable
11
5 1
Outputs OK Outputs OK
READY
6 2
ERROR
Reset GSP
7 3
SW Enable
8 4
Reset error
Strobe
12 13
STATUS
POWER
LEDs
14
14
Option
Fig. 8 Connection for step motor
NOTE:
When replacing the existing basis weight valve with
NelesAce it is recommended to you verify and, if neces-
sary, tune DCS parameters.
NOTE:
It is recommended that the valve position signal is used
only for informative purposes and feedback for control is
taken from other measures, e.g. flow.
2 4 6 8
1 2
3
4
5
5x1.5S
3
4 5
6
7
81
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