Section 1
General Information

3-28 Receiving & Installation MN715

Fan Pump 2 Wire Operating Mode

Operation in the Fan Pump 2-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 3-28 or logic signals

from another device.
Figure 3-28 Fan Pump, 2 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
Analog Input Select
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 3-35.
Programmable Output
Programmable Output
J4-8 CLOSED allows normal control operation.
OPEN disables the control and the motor coasts to a stop.
J4-9 CLOSED operates the motor in the Forward direction (with J4-10 open).
OPEN motor decels to stop (depending on Keypad Stop mode).
Note: J4-9 and J4-10 are both closed = Fault Reset.
J4-10 CLOSED operates the motor in the Reverse direction (with J4-9 open).
OPEN motor decels to stop (depending on Keypad Stop mode).
Note: J4-9 and J4-10 are both closed = Fault Reset.
J4-11 CLOSED selects Analog Input #1 (if J4-13, J4-14 and J4-15 are closed).
OPEN selects command select (Level 1, Input, Command Select, if J4-13, J4-14
and J4-15 are closed).
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 3-10.
OPEN selects speed commanded from Keypad (if J4-14 and J4-15 are closed).
Note: When changing from Terminal Strip to Keypad (J4-12 or J4-13) the motor speed
and direction will remain the same after the change.
J4-14 Firestat. Selects Level 1, Preset Speeds, Preset Speed #1.
J4-15 Freezestat. 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).
5KW
Command Pot or
0-10VDC
Table 3-10 Speed Select Table – Fan Pump, 2 Wire
J4-11 J4-13 J4-14 J4-15 Command
Open Closed Closed Keypad Speed Command
Open Level 1, Preset Speeds, Preset Speed #1
Closed Open Level 1, Preset Speeds, Preset Speed #2
Open Closed Closed Closed Analog Input (Level 1, Input, Command Select)
Closed Closed Closed Closed Analog Input #1