Trane RTWA 70-125 TON - Manual (Page 56)

56 RLC-SVD03A-EN
Module Power and Miscellaneous I/O
Table 19 CSR Normal Terminal Voltages for Options Module 1U2
Terminal
Designation Description
of Circuit Normal Terminal Voltages
for Various Conditions
J1-4 to 3
or J1-2 to 1 IPC Communications 19.2 kbaud serial data, 5 volt signal level.
Refer to Interprocessor Communication Link (IPC).
J2-2, 1 Manufacturing
Address Use Only +5 VDC No connection intended.
TB1-3 +5V Source for use with
Resistor programming of CW
setpoint +5VDC open circuit with respect to chassis ground.
TB1-3, 5 Ext. Chilled Water Setpoint
(Resistive option) Refer to External Setpoint Inputs (4-20ma/2-10VDC) on page 50 .
TB1-4, 5 Ext. Chilled Water Setpoint
(Current or Voltage option) Refer to External Setpoint Inputs (4-20ma/2-10VDC) on page 50 .
TB1-6 +5V Source for use with
Resistor programming of CL
setpoint +5VDC open circuit.
TB1-6, 8 Ext. Current Limit Setpoint
(Resistive option) Refer to External Setpoint Inputs (4-20ma/2-10VDC) on page 50 .
TB1-7, 8 Ext. Current Limit Setpoint
(Current or Voltage option) Refer to External Setpoint Inputs (4-20ma/2-10VDC) on page 50 .
TB1-9, 10 Unused
TB2A-1,2
or TB2B-3,4 Serial Comm.Input Refer to Section 2, ICS Communications.
J6-1 or 2
to J6-4 or 5 Input Power 115 VAC, Refer to Power Supply on page 41 .
Dip Switch
SW1-1 External Chilled Water Setpoint
Dip Switch Off for 2-10 VDC input.
On for 4-20 mA input.
Dip Switch
SW1-2 External Current
Limit Setpoint
Dip Switch Off for 2-10 VDC input.
On for 4-20 mA input.