Electronic Pot 3 Wire Control Mode; External Trip Input - Baldor 23H Series Installation & Operating Manual

Electronic Pot 3 Wire Control Mode

J1-8 CLOSED allows normal operation.
OPEN disables the control and motor coasts to a stop.
J1-9 Momentary CLOSED starts motor operation in the Forward direction.
J1-10 Momentary CLOSED starts motor operation in the Reverse direction.
Note: Closing both J1-9 and J1-10 at the same time will reset a fault condition.
J1-11 Momentary OPEN motor decels to stop (depending on Keypad Stop mode).
J1-12 CLOSED selects Level 1 Command Select parameter value.
OPEN selects EPOT.
J1-13 CLOSED selects ACC / DEC / S-CURVE group 2.
OPEN selects ACC / DEC / S-CURVE group 1.
J1-14 Momentary CLOSED increases motor speed while contact is closed.
J1-15 Momentary CLOSED decreases motor speed while contact is closed.
J1-16 If J1-16 is connected, you must set Level 2 Protection block, External Trip to
"ON" to activate the opto input.
CLOSED allows normal 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).

External Trip Input

See recommended terminal
tightening torques in Section 7.
3-36 Receiving & Installation
Provides speed Increase and Decrease inputs to allow EPOT operation with 3 wire
inputs. The opto inputs can be switches as shown in Figure 3-40 or logic signals from
another device.
Figure 3-40 EPOT, 3 Wire Control Connection Diagram
See recommended terminal
tightening torques in Section 7.
Terminal J1-16 is available for connection to a normally closed thermostat or overload
relay in all operating modes as shown in Figure 3-41. The thermostat or overload relay
should be a dry contact type with no power available from the contact. If the motor
thermostat or overload relay activates, the control will automatically shut down and give
an External Trip fault. The optional relay (CR1) shown provides the isolation required
and the N.O. contact is open when power is applied to the relay and the motor is cold. If
the motor thermostat is tripped, CR1 is de-energized and the N.O. contact closes.
Connect the External Trip Input wires (N.O. relay contact) to J1-16 and J1-17. Do not
place these wires in the same conduit as the motor power leads.
To activate the External Trip input, the External Trip parameter in the Level 2 Protection
Block must be set to "ON".
Figure 3-41 Motor Temperature Relay
T2 T3 G
T1
Motor Thermostat Leads
* Motor
Command Pot or
Programmable Output
Programmable Output
Customer Provided Note: Add appropriately rated protective
Source Voltage
*
CR1
Do not run these wires in same conduit
as motor leads or AC power wiring.
*
Optional hardware. Must be ordered separately.
Analog GND
Analog Input 1
0-10VDC
Pot Reference
5KW
Analog Input +2
Analog Input -2
Analog Out 1
Analog Out 2
Enable
Forward Run
Reverse Run
EPOT/Command Select
Accel/Decel
Increase
Decrease
External Trip
Opto In Common
Refer to Figure 3-41.
device for AC relay (snubber)
or DC relay (diode).
J1
16
External Trip
17
J1
1
2
3
4
5
6
7
8
9
10
Stop
11
12
13
14
15
16
17
MN723