Panasonic Urban Multi MX1R Series Service Manual page 639

Interface Adaptor
„ Set the changeover switch (SS1) to "no voltage."
Contact a Input for
Both Input A and B (Factory set: Voltage)
(No Voltage)
„ The black part shows the position of the switch.
6.7.5 Control Mode Switch (RS) Setting
You can select control mode at input A and B with the control mode switch on the PC board adaptor.
(Factory set: 2)
1. If you want to disregard input for wiring check, set to position 1 (direction of arrow).
2. If operating using input A for constant input:
∗ Input B is disregarded.
3. If operating using instantaneous input for input A and input B, use instantaneous input of at least 400
Set all switches before turning on the power supply.
„ Fetching the display signal
External Control
Input (Wiring to
Normal operation output terminals (W1, W2) and malfunction output terminals (W3, W4) are for contact
Host Computer
output with no voltage. (Allowable current per contact is 10 mA~3 A.)
Monitor Panel, Etc.)
Output is as described below.
RY1 and RY2 both OFF
All indoor units are
stopped.
618
Position
2 Unified ON by switching from OFF to ON
Unified OFF by switching from ON to OFF
msec ON time.
Position
3 ON: Unified ON
RY1 only ON
No malfunction has occurred and at least
one unit is operating.
Input A
Input A
ON: Unified OFF
PACD011001C2
Input B
RY2 only ON
At least 1 unit has stopped due to
malfunction, or a malfunction of
transmission has occurred between
central remote controller and indoor unit.
Appendix