3-30 Receiving & Installation
MN715
Fan Pump 3 Wire Operating Mode
Operation in the Fan Pump 3-Wire mode is controlled by the opto isolated inputs at J4-8
through J4-16. The opto inputs can be switches as shown in Figure 3-30 or logic signals
from another device.
Switched inputs at J4-11 through J4-14 allow selection of 15 preset speeds and provide
Fault Reset as defined in the Speed Select Table.
Figure 3-30 Fan Pump, 3 Wire Control Connection Diagram
See recommended terminal
tightening torques in Section 6.
8
9
10
11
12
13
14
15
16
17
Enable
Forward Run
Reverse Run
Stop
Run Command
Speed Command
External Trip
Opto In Common
Analog GND
Analog Input 1
Pot Reference
Analog Input +2
Analog Input -2
Analog Out 1
Analog Out 2
1
2
3
4
5
6
7
Firestat
Freezestat
J4
Refer to Figure 3-36.
Programmable Output
Programmable Output
J4-8
CLOSED allows normal control operation.
OPEN disables the control and the motor coasts to a stop.
J4-9
MOMENTARY CLOSED starts motor operation in the Forward direction.
Note: Closing both J4-9 and J4-10 at the same time will reset a fault condition.
J4-10
MOMENTARY CLOSED starts motor operation in the Reverse direction.
Note: Closing both J4-9 and J4-10 at the same time will reset a fault condition.
J4-11
OPEN motor decels to stop (depending on Keypad Stop mode).
J4-12
CLOSED selects STOP/START and Reset commands from terminal strip.
OPEN selects STOP/START and Reset commands from Keypad.
J4-13
CLOSED allows other selections, see Speed Select Table 3-12.
OPEN selects speed commanded from Keypad (if J4-14 and J4-15 are closed).
J4-14
Firestat. Selects Level 1, Preset Speeds, Preset Speed #1.
J4-15
Freezestat. Selects Level 1, Preset Speeds, Preset Speed #2 (if J4-14 is closed).
J4-16
If J4-16 is connected, you must set Level 2 Protection block, External Trip to “ON”
to activate the opto input.
CLOSED allows normal control operation.
OPEN causes an external trip fault. The control will disable and the motor coasts
to a stop. An external trip fault is displayed (also logged in the fault log).
5K
W
Command Pot or
0-10VDC
Table 3-12 Speed Select Table – Fan Pump, 3 Wire
J4-13
J4-14
J4-15
Command
Open
Level 1, Preset Speeds, Preset Speed #1
Closed
Open
Level 1, Preset Speeds, Preset Speed #2
Open
Closed
Closed
Keypad Speed Command
Closed
Closed
Closed
Analog Input (Level 1, Input, Command Select)
Содержание -W
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